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BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 2 of 65 Note This device was developed for the purpose of communication in an office environment. It is intended solely for our industrial clients for physical integration into their own technical products after careful examination by experienced technical personnel for its suitability for the intended purpose. The device was not developed for or intended for use in any specific customer application. The firmware of the device may have to be adapted to the specific intended modalities of use or even replaced by other firmware in order to ensure flawless function in the respective areas of application. Performance data (range, power requirements, etc.) may depend on the operating environment, the area of application, the configuration, and method of control, as well as on other conditions of use; these may deviate from the technical specifications, the Design Guide specifications, or other product documentation. The actual performance characteristics can be determined only by measurements subsequent to integration. Variations in the performance data of mass-produced devices may occur due to individual differences between such devices. Device samples were tested in a reference environment for compliance with the legal requirements applicable to the reference environment. No representation is made regarding the compliance with legal, regulatory, or other requirements in other environments. No representation can be made and no warranty can be assumed regarding the suitability of the device for a specific purpose as defined by our customers. Stollmann reserves the right to make changes to the hardware or firmware or to the specifications without prior notice or to replace the device with a successor model. Of course, any changes to the hardware or firmware of any devices for which we have entered into a supply agreement with our customers will be made only if, and only to the extent that, such changes can reasonably be expected to be acceptable to our customers. No general commitment will be made regarding periods of availability; these must be subject to individual agreement. All agreements are subject to our Terms and Conditions for Deliveries and Payments, a copy of which is available from Stollmann. Copyright © 2013 Stollmann E+V GmbH Trademarks The Bluetooth® word mark and logos are owned by the Bluetooth SIG, Inc. and any use of such marks by Stollmann E+V GmbH is under license. Other trademarks and trade names are those of their respective owners.

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 5 of 65 8.2.1 FCC Grant ............................................................................................................... 52 8.2.2 FCC Statement ........................................................................................................ 52 8.2.3 FCC Caution ............................................................................................................ 52 8.2.4 FCC Warning ........................................................................................................... 52 8.2.5 FCC RF-exposure Statement ................................................................................... 53 8.2.6 FCC Labeling Requirements for the End Product .................................................... 54 8.3 IC Compliance ................................................................................................................ 55 8.3.1 IC Grant ................................................................................................................... 55 8.3.2 IC Statement ............................................................................................................ 56 8.3.3 IC Caution ................................................................................................................ 56 8.3.4 IC RF-exposure Statement ...................................................................................... 56 8.3.5 IC Labeling Requirements for the End Product ........................................................ 57 8.3.6 IC Label Information BlueMod+SR ........................................................................... 57 8.4 Bluetooth Qualification .................................................................................................... 58 8.5 RoHS Declaration ........................................................................................................... 59 9 Related Documents ............................................................................................................... 59 10 Packing ............................................................................................................................... 60 10.1 Tape ............................................................................................................................... 61 10.2 Reel ................................................................................................................................ 61 10.3 Package Label ................................................................................................................ 62 11 Ordering Information ........................................................................................................... 63 11.1 Part Numbers.................................................................................................................. 63 11.2 Standard Packing Unit .................................................................................................... 63 11.3 Evaluation Kit .................................................................................................................. 63 12 History ................................................................................................................................. 64 List of Figures Figure 1: BlueMod+SR Block Diagram .......................................................................................... 11 Figure 2: BlueMod+SR Example Power Supply ............................................................................ 12 Figure 3: BlueMod+SR Example Reset ......................................................................................... 13 Figure 4: Serial Interface Signals .................................................................................................. 15 Figure 5: BlueMod+SR Example Serial Interface (RS-232) Supporting UICP ............................... 16

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 7 of 65 Table 17: RF Performance GFSK, PI/4 DQPSK, 8DPSK Transmitter ........................................... 38 Table 18: RF Performance BLE Receiver ..................................................................................... 39 Table 19: RF Performance BLE Transmitter ................................................................................. 41

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 8 of 65 1 Introduction This Hardware Reference documents how the BlueMod+SR/AI and BlueMod+SR/AP can be integrated into customer systems. It addresses hardware specifications of the BlueMod+SR/AI and /AP and requirements of the hardware environments for the BlueMod+SR/AI and BlueMod+SR/AP. Notation: The term BlueMod+SR refers to both the BlueMod+SR/AI and the BlueMod+SR/AP. For detailed information about software interfaces refer to [5] For the latest version of this document please check the following URL: http://www.stollmann.de/en/support/downloads/bluetooth-adapter/bluemod-sr.html 1.1 Feature Summary • Bluetooth specification V4.0 compliant • Supports BR/EDR/LE • Supports Dual Mode • Fully qualified Bluetooth V4.0 Dual Mode BR/EDR/LE • CE certified • FCC and IC certified • CSR8811 BlueCore08 and Application Processor inside • Complete Co-location and Co-existence with 802.11 (AFH, Unity 3e+) • Fast Connection Setup • RF output power up to +7dBm with power control • Supply Voltage range 2,5V to 3,6V, typical 3.3V • Internal crystal oscillator (26 MHz and 14,7456 MHz) • LGA Surface mount type: BlueMod+SR: 17 x 10 x 2.6 mm3 • Shielded to be compliant to FCC full modular approval • Bluetooth enhanced data rate up to 2178kbps asymmetric • Support for all Bluetooth power saving modes (Park, Sniff, Hold) • Optional support for ultra-low-power mode • Full 8- to 128-bit encryption • High sensitivity design • High-speed UART interface • I2C interface • SPI interface • Up to 11 digital IO’s for individual usage by embedded software • Cortex-M3 STM32F103 core for embedded profiles or application software • Manufactured in conformance with RoHS2 • Operating temperature -30 ... +85 °C

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 10 of 65 1.2.5 Sports and Fitness In the sports and fitness segment Bluetooth is used in devices for positioning as well as monitoring vital data. Typical devices in this market are heart rate monitors, body temperature thermometers, pedometers, cadence meters, altimeter, positioning / GPS tracking and watches displaying information from sensors. 1.2.6 Entertainment Bluetooth technology is already used in a wide variety of devices in the entertainment sector, namely set-top boxes / gaming consoles. Bluetooth low energy is expected to further increase the use of Bluetooth technology in devices like TV / DVD / STB / Media Player, remote controls, gaming controller, wireless mouse/keyboard.

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 11 of 65 2 Block Diagram STM32F103CSR8811VSUPBlueMod+SRBPFilterRESETI2CUARTGPIOSPIWLAN-COEX12734GND3.3V26MHz14,7456MHzopt. 32kHz9EEPROMDEBUGonboardantennaEXT-ANT1)2)1) BlueMod+SR/AI only2)BlueMod+SR/AP only Figure 1: BlueMod+SR Block Diagram Note: BlueMod+SR/AI has an internal ceramic antenna whereas BlueMod+SR/AP provides for an 50Ω RF interface

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 12 of 65 3 Application Interface 3.1 Power Supply BlueMod+SR require a power supply with the following characteristics: Typical: 3,3VDC, min.: 2,5VDC, max.: 3.6VDC, low noise (≤ 10mVrms), > 80mA peak For optimal performance a stable supply is recommended. If a regulator is to be used, it should be a fast linear regulator placed as close as possible to the VSUP pins (E-6, F-6). Functionality has been verified with the following types: TOREX: XC6204x332xx or XC6401xx42xx. If the regulator cannot be placed close to the BlueMod+SR, it is recommended to place an additional low ESR capacitor with at least 10µF as close as possible to the VSUP pins (E-6, F-6 or C-1). BlueMod+SRXC6204-3.3C-1,E-6,F-6VSUPGND:A-7,E-7,F-7,B-[5:8],C-[5:8],D-8,E-8,F-810µ + 100n + 1n1µVOUTVSSVINCE5 132+5VDC Figure 2: BlueMod+SR Example Power Supply 3.2 Power-up / -down Slew-Rate Parameter Min Max Unit VSUP rise time rate 0 ∞ µs/V VSUP fall time rate 20 ∞ Table 1: Power up/down Slew Rate Requirements

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 13 of 65 3.3 Reset BlueMod+SR are equipped with circuitry for generating Power ON Reset from the internal core voltage. A reset is generated when the core voltage falls below typically 1,88V and is released when it rises above typically 1,92V. By holding pin B-1 (EXT-RES#) at ≤ 0,5V for ≥ 5ms, an external reset is generated. This pin has a fixed internal pull-up resistor (RPU = 30kΩ ... 50kΩ) and a capacitor to GND (100n) which acts as debounce filter. If EXT-RES# is not used, it may be left open. Note: EXT-RES# pin can also be output. Use an open drain device or push button to drive it low. EXT-RES# must not be connected to VSUP or driven to logic high-level directly. Provide for an 1kΩ series resistor when driving EXT-RES# from a CMOS output. BlueMod+SRC-1,E-6,F-6VSUPGND+3V3EXT-RES# B-1Reset-Switch is optionalPlease Note: BlueMod+SR has an open-drain output and approx. 40k internal pullup1kReset signal is optionalHost MCUGPIOVDD Figure 3: BlueMod+SR Example Reset

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 14 of 65 The following table shows the pin states of BlueMod+SR during reset active. Pin Name State: BlueMod+SR EXT-RES# I/O with pull-up (1) and 100n to GND – use open drain SLCK Input with weak pull-down (2) UART-TXD Input floating UART-RXD Input floating UART-RTS# Input with pull-up resistor 470kΩ (4) UART-CTS# Input floating IUR-OUT# Input with pull-up resistor 470kΩ (4) IUR-IN# Input floating GPIO[0:4, 6:7] Input floating GPIO[5] Input with pull-up (1) GPIO[8] Output (JTDO) BT-ACT Input with weak pull-up (2) BT-STAT Input with weak pull-up (2) WLAN-DNY Input with weak pull-up (2) BT-PER Input with weak pull-up (2) TESTMODE# Input floating BOOT0 Input with pull-down resistor 100kΩ (4) SWDIO Input with pull-up (1) SWCLK Input with pull-down (1) (1) pull-up, pull-down: RPU, RPD is typ. 40kΩ (30kΩ to 50kΩ) (2) weak pull-up, pull-down: See Table 12: DC characteristics, digital IO (CSR8811 related) (3) strong pull-up, pull-down: See Table 12: DC characteristics, digital IO (CSR8811 related) (4) a discrete resistor is used Table 2: Pin States during Reset The pin states as indicated in Table 2 are kept until hardware initialization has started. 3.4 Supply Voltage Monitor Supply-under-voltage detection is implemented using the STM32 embedded supply voltage monitor PVD. When VSUP falls below a threshold VPVD (programmed to 2,38V ± 0,1V), a system reset will be asserted.

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 15 of 65 3.5 Serial Interface The serial interface of BlueMod+SR is a high-speed UART interface supporting RTS/CTS flow control and interface-up/down mechanism according to the UICP+ protocol (refer to [3] ). Electrical interfacing is at CMOS levels (defined by VSUP). • Transmission speeds are 9600 – 921600 bps (asynchronous) • Character representation: 8 Bit, no parity, 1 stop bit • Hardware flow-control with RTS and CTS (active low) Note: Transmission speed may be limited by firmware. See corresponding command reference [5] for further information. BlueMod+SR Host UART-RXD UART-TXD UART-CTS# UART-RTS# IUR-IN# IUR-OUT# Figure 4: Serial Interface Signals The basic serial interface (with RTS/CTS flow control) uses only four signal lines (UART-RXD, UART-TXD, UART-CTS#, UART-RTS#). IUR-IN#, IUR-OUT# and GPIO[4] (see below) can be left unconnected. A substantially saving of power during idle phases can be achieved (see 5.6.1) when the UICP protocol is used (refer to [3] ). This protocol has to be complemented on the host side as well. Signals IUR-IN# and IUR-OUT# should be connected to the host and may be mapped to DSR and DTR, if an RS232-style (DTE-type) interface is used (see Figure 5). When using the SPP firmware and applications, call control can be supported by GPIO[4]. Driving GPIO[4] to logic High level during a data transfer phase will “hang up” the connection and disconnect the Bluetooth link. This signal may be mapped to DSR, if an RS232-style (DTE-type) interface is used. Please refer to [5] for a functional specification. GPIO[4] can be left unconnected if this feature is not used.

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 16 of 65 3.5.1 3-Wire Serial Interface When using only GND and UART-RXD, UART-TXD serial lines, leave UART-RTS# and UART-CTS# open Note: It is strongly recommended to use hardware flow control. Not using flow control can cause a loss of data. 2BlueMod+SRGNDMAX324114+3V3222323784619TXDRXDRTS#CTS#IUR-OUT#IUR-IN#TXDRXDRTSCTSDTRDSRDCDRIRS232DSUB9 (male)DTE style connector941051167819131812171615F-4D-2D-7F-3B-4D-5UART_TXDUART_RXDUART_RTS#UART_CTS#IUR-OUT#IUR-IN#SHDN#EN#100n100n28241+3V3100n 100n 100n2632725V+VCCV -GNDC2+C2-C1+C1-220R220R220R220R220R220R5SigGNDcan be left openVSUP+3V3 Figure 5: BlueMod+SR Example Serial Interface (RS-232) Supporting UICP

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 17 of 65 VDDIO(+1.2V .. +3.6V)BlueMod+SRGNDD-2F-4F-3D-7UART_RXDUART_TXDUART_CTS#UART_RTS#10µ+100n+1nSN74AVC4T245User Host SystemVSUPXC6204-3.3VOUTVSSVINCE 1µ100k100kVCCB1B11B22B12B2 2A22A11A21A1VCCA1DIR1OE2DIR2OE(GPIO, Out, no pu/pd)(GPIO, Out, no pu/pd)TXDRTS#RXDCTS#+5VDCOE_DRV#BT_ENABLEVDD_HOST (+1.2 .. +3.6V)+3V3_switched Figure 6: BlueMod+SR Example Serial Interface (Mixed Signal Level) 3.5.2 Baudrate Deviation The following table shows the deviation in percent of the standard data rates. The deviation may be caused by the inaccuracy of the crystal oscillator or granularity of the baud rate generator. Data Rate (bits/s) Deviation (%) 9600 ±1% 19200 38400 57600 115200 230400 460800 921600 Table 3: Baudrates and Deviations Note: The total deviation of sender and receiver shall not exceed 2.5 % to prevent loss of data. 3.6 GPIO Interface It is possible to use the programmable digital I/Os GPIO[0:8] on the BlueMod+SR. Their behavior has to be defined project specific in the firmware. Unused GPIO pins can be left unconnected.

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 18 of 65 3.7 I2C Interface1 The I2C bus interface serves as an interface between the internal microcontroller and the serial I2C bus. It provides multimaster capability, and controls all I2C bus specific sequencing, protocol, arbitration and timing. It supports standard (100kHz) and fast (400kHz) speed modes. GPIO[1]/I2C-SDA and GPIO[0]/I2C-SCL can be used to form an I2C interface. It is required to connect 4k7 pull-up resistors on I2C-SCL and I2C-SDA when this interface is used. I2C-SCLI2C-SDAGPIO[0]/I2C-SCLGPIO[1]/I2C-SDABlueMod+SRVSUPRpu4k7+3.3VB-2D-3C-1,E-6,F-6+3.3VRpu4k7+3.3V Figure 7: BlueMod+SR I2C Interface 1 subject to firmware support, contact Stollmann for current status

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 19 of 65 3.8 SPI Serial Peripheral Interface2 The serial peripheral interface (SPI) allows half/full-duplex, synchronous, serial communication with external devices. The interface can be configured as the master and in this case it provides the communication clock (SCK) to the external slave device. The interface is also capable of operating in multi master configuration. It may be used for a variety of purposes, including simplex synchronous transfer on two lines with a possible bidirectional data line or reliable communication using CRC checking. Module pins are used as follows: • GPIO[2]: SPI-MOSI • GPIO[5]: SPI-MISO • GPIO[8]: SPI-SCK GPIO[8]/SPI-SCKGPIO[2]/SPI-MOSIBlueMod+SRE-2SPI-MasterHostSPI-SlaveGPIO[5]/SPI-MISOD-1F-2SCK, SPI_CLKSDI, MOSISDO, MISOtypical signals: Figure 8: BlueMod+SR SPI Interface e.g. in Master Mode 3.9 Bluetooth Radio Interface • The BlueMod+SR/AI presents an integrated ceramic antenna. • The BlueMod+SR/AP presents no integrated ceramic antenna whereas provides a 50Ω RF interface. It is highly recommended that you follow the design rule given in the Stollmann Application Note on Antenna design [4]. 2 subject to firmware support, contact Stollmann for current status

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 20 of 65 3.10 WLAN Coexistence Interface3 For implementing WLAN Coexistence with CSR’s Wi-Fi solution the Unity 3e+ solution is implemented. For non-CSR WiFi solutions only the 3 Signals BT_ACTIVE (BT-ACT), BT_STATUS (BT-STAT) and WLAN_DENY (WLAN-DNY) are used. BlueMod+SR WiFi Device BT-ACT BT-STAT WLAN-DNY BT-PER Figure 9: Unity 3e+ Coexistence If this interface is not used, these signals may be left unconnected. If your application needs to use these signals, ask Stollmann for support. 3.11 Slow Clock Interface Consumption of power during power-down modes can be reduced by feeding the module with a 32,768 kHz slow clock at pin SLCK. SLCK specification: • 32,768 kHz typ., 30 kHz min., 35 kHz max. Duty cycle 30...70%. • Signal must be square wave, at VSUP-level (see note below) and present as long as VSUP is powered. The module’s firmware will detect the presence of a slow clock during the boot process and switch behavior appropriately. This check does only apply for presence of some clock; it is not checked if the clock frequency is in the valid range required by CSR8811 (30kHz ... 35kHz). If this signal is not used, to minimize risk of erroneous pulse detection in noisy environments, Stollmann recommends the connection of A-6 to GND (direct connection or pull-down resistor). Note: Since SLCK is fed to both the STM32 and the CSR8811, the electrical characteristics as described in Table 11 (VLSEH) and Table 12 (VIH) apply at the same time. 3.12 Test Mode Enable This functionality is reserved. Leave pin TESTMODE# open. 3 subject to firmware support, contact Stollmann for current status

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 21 of 65 3.13 Pin Strapped System Memory Boot Mode Invocation Asserting BOOT0 “high” will invoke the system memory bootloader at start-up. This is required for firmware update. Thus, access to this signal and a means to drive it at high level should be foreseen by the customer’s hardware. While not in use, this signal can be left open or driven to logic low level. To connect to the module during system memory boot mode, an RS232 serial interface has to be directly linked to the UART-TXD (F-4) and UART_RXD (D-2) pins. The bootloader is stored in the internal boot ROM memory (system memory) of MCU. It is programmed during production. Its main task is to upgrade the firmware to the internal Flash memory. A communication protocol is defined with a specific command set and sequences. The firmware upgrade will be done by either - a Stollmann provided firmware update tool. This is a Windows program that contains the firmware and uses a PC with a serial port for the update - implementing the system memory boot mode protocol on the host system. If firmware update shall be performed from a host MCU, signals BOOT0 and EXT-RES# both must be controlled by that host MCU (GPIO ports). Please note that EXT-RES# must not be driven directly from a push-pull signal (see chapter 3.3). 3.14 Operating in a Power-Switched Environment A potential "back feeding" problem may arise, if the module is operated in an environment where its power supply (VSUP) is switched off by the application. This might be done to save some power in times Bluetooth is not needed. As stated in Table 6, the voltage on any I/O pin must not exceed VSUP by more than 0,4V at any time. Otherwise some current IINJECT flows through the internal protection diodes. This may damage the module. There is no problem if the application circuit design and programming can assure that all signals directed towards BlueMod+SR are set to low (U < 0,3V) before and while VSUP is turned off. If this is not guaranteed, at least a series resistor (about 1k) must be inserted into the signal path. This does protect the module but obviously cannot prevent from an unwanted, additional current flow in case of such signal being at high-level. It may be necessary to use driver chips in such applications, that gate off these signals while VSUP is not present.

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 22 of 65 3.15 Serial Wire Interface The Serial Wire interface SWDIO, SWCLK is normally not used in a customer’s product. It is reserved for debugging purposes. Leave SWDIO, SWCLK unconnected. Only if you intend to use it for debugging purposes, make it available and connect SWDIO via a pullup resistor 100kΩ to VSUP (refer to [1]). 4 Module Pins 4.1 Pin Numbering F1E1D1C1B1A1 A2 A3 A4 A5 A6 A7 A8F2E2D2C2B2F3E3D3C3B3F4E4D4C4B4F5E5D5C5B5F6E6D6C6B6F7E7D7C7B7F8E8D8C8B8 Figure 10: BlueMod+SR Pin Numbering (Top View)

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 23 of 65 4.2 Pin Description 4.2.1 General Pin Description Type: PU - pull-up; PD – pull-down; PWR – Power; I – Input; O – Output; I/O – bidir.; OD – open drain; PP – push/pull; RF: RadioFreq Pin Name Signal Type Act Function Alternate Function E-6 VSUP1 PWR +3,3V nom. F-6 VSUP2 PWR +3,3V nom C-1 VSUP3 PWR +3,3V nom A-7, E-7, F-7, B-[5,6,7,8], C-[5,6,7,8], D-8, E-8, F-8 GND PWR Ground A-8 ANT RF n.c. (AI-Variant) RF (AP-Variant) B-1 EXT-RES# I/O-PU L User Reset A-6 SLCK I-PD 32kHz Slow Clock F-4 UART-TXD O-PP IUR Data OUT D-2 UART-RXD I-PD IUR Data IN D-7 UART-RTS# O-PU (1) L Flow Control/IUC F-3 UART-CTS# I-PD L Flow Control/IUC B-4 IUR-OUT# O-PU (1) L UICP Control D-5 IUR-IN# I-PD L UICP Control D-3 GPIO[0] I/O (5) GPIO (3) I2C-SCL B-2 GPIO[1] I/O (5) GPIO (3) I2C-SDA D-1 GPIO[2] I/O (5) GPIO (3) SPI-MOSI E-4 GPIO[3] I/O (5) GPIO (3) D-4 GPIO[4] I/O (5) GPIO (3) F-2 GPIO[5] I/O (5) GPIO (3) SPI-MISO C-4 GPIO[6] I/O (5) GPIO (3) Debug UART TXD C-3 GPIO[7] I/O (5) GPIO (3) Debug UART RXD E-2 GPIO[8] I/O (5) GPIO (3) SPI-SCK A-3 BT-ACT O WLAN coexistence A-1 BT-STAT O WLAN coexistence A-4 WLAN-DNY I-PD WLAN coexistence A-2 BT-PER O WLAN coexistence F-1 TESTMODE# I-PU L Testmodi E-1 BOOT0 I-PD (1) System memory bootloader E-3 SWDIO I-PU (6) serial wire D-6 SWCLK I-PD serial wire C-2 DNU (4) reserved B-3 DNU (4) reserved A-5 DNU (4) reserved F-5 DNU (4) reserved E-5 DNU (4) reserved (1) a discrete resistor is used Table 4: General Pin Assignment Notes: (1) a discrete resistor is used (3) function depends on firmware (4) DNU: Do Not Use, Do Not Connect (5) GPIO pin. These pins may be programmed as analog-in, i-float, i-pu, i-pd, o-pp (output push/pull), o-od (output open drain) or some alternate function; refer to [1], [2] (6) if the serial wire interface is used, a pull-up resistor 100kΩ has to be connected to VSUP. Please refer to chapter 3.15 and [1]

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 24 of 65 4.2.2 Application Specific Pin Description 4.2.2.1 SPP Pin Configuration Type: PU – Pull-up; PD – pull-down; PWR – Power; I – Input; O – Output; I/O – bidir.; OD – open drain: PP – push/pull; RF: RadioFreq Pin Name Signal SPP-Function Type Act Description E-6 VSUP1 Power PWR +3,3V nom. F-6 VSUP2 Power PWR +3,3V nom C-1 VSUP3 Power PWR +3,3V nom A-7,E-7,F-7, B-[5,6,7,8], C-[5,6,7,8], D-8, E-8, F-8 GND Power PWR Ground A-8 ANT Antenna RF n.c. (/AI) or RF (/AP) B-1 EXT-RES# Reset I/O-PU L User Reset A-6 SLCK SLCK I-PD 32,768kHz Slow Clock (optional) F-4 UART-TXD TXD O-PP IUR Data OUT D-2 UART-RXD RXD I-PD IUR Data IN D-7 UART-RTS# /RTS O-PP (1) L Flow Control/IUC; refer to [3] F-3 UART-CTS# /CTS I-PD L Flow Control/IUC; refer to [3] B-4 IUR-OUT# /IUR-OUT O-PP (1) L UICP Control; refer to [3] D-5 IUR-IN# /IUR-IN I-PD L UICP Control; refer to [3] D-3 GPIO[0] GPIO0 I GPIO (3) B-2 GPIO[1] GPIO1 I GPIO (3) D-1 GPIO[2] IOC I/O User IO E-4 GPIO[3] IOB User IO D-4 GPIO[4] HANGUP I-PD optional; refer to [5] F-2 GPIO[5] IOD I/O User IO C-4 GPIO[6] reserved O-PP Debug UART TXD C-3 GPIO[7] GPIO7 I-PD GPIO (3) E-2 GPIO[8] IOA I/O User IO A-3 BT-ACT WLAN coexistence O A-1 BT-STAT WLAN coexistence O A-4 WLAN-DNY WLAN coexistence I-PD A-2 BT-PER WLAN coexistence O F-1 TESTMODE# reserved I-PU L leave open

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 25 of 65 E-1 BOOT0 r I-PD (2) system memory bootloader E-3 DNU (4) reserved leave open (serial wire) D-6 DNU (4) r leave open (serial wire) C-2 DNU (4) reserved leave open B-3 DNU (4) reserved leave open A-5 DNU (4) reserved leave open F-5 DNU (4) reserved leave open E-5 DNU (4) reserved leave open Table 5: Application Specific Pin Assignments, SPP Notes: (1) a discrete pull-up resistor is used (2) a discrete pull-down resistor is used (3) function depends on firmware (4) DNU: Do Not Use, Do Not Connect 4.3 Handling of Unused Signals Depending on the application, not all signals of BlueMod+SR may be needed. The following list gives some hints how to handle unused signals. • EXT-RES# If no external Reset is needed: Leave open (*) • BOOT0 (*) [leave open] • SLCK If no external slow clock is provided: Leave open or tie to GND • UART-RTS#, UART-CTS# If neither flow control nor UICP is used: Leave open • IUR-OUT#, IUR-IN# If UICP is not used: leave open • BT-ACT, BT-STAT, If there is no WLAN device on the same PCB: Leave open BT-PER, WLAN-DNY • TESTMODE# Leave open • unused GPIOs Leave open • SWDIO, SWCLK Leave open. Only needed for debug purposes. (*) for being able to update the firmware, it is strongly recommended to provide for a means to set BOOT0 temporarily to logic high level, and to reset the module; see chapter 3.13.

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 26 of 65

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 27 of 65 5 Electrical Characteristics 5.1 Absolute Maximum Ratings Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “Electrical Requirements” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. Item Symbol Absolute Maximum Ratings Unit Supply voltage VSUP -0,3 to +3,6 V Voltage on any pin VPin -0,3 to VSUP +0,4 V Table 6: Absolute Maximum Ratings 5.2 Electrical Requirements VSUP = 3,3V, Tamb = 25°C if nothing else stated Item Condition Limit Unit Min Typ Max Frequency Range 2400 2483.5 MHz Load impedance Measured with network analyzer in the frequency range at antenna pin 50 Ohm Output return loss Receive Mode to 50Ω load Transmit Mode to 50Ω load -10 -10 dBm Table 7: Electrical Requirements 5.3 Operating Conditions Tamb = 25°C Item Condition Limit Unit Min Typ Max Supply voltage VSUP 2,5 3,3 3,6 VDC Ripple on VSUP Ripple frequency ≤10MHz 10 mVrms Table 8: DC Operating Conditions

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 28 of 65 5.4 Environmental Requirements Item Symbol Absolute Maximum Ratings Unit Storage temperature range Tstg -40 to +85 °C Operating temperature range Top -30 to +85 °C Table 9: Environmental Requirements 5.5 Digital I/O Including EXT-RES# STM32 MCU and CSR8811 do have different electrical I/O characteristics. All Module I/O pins are connected directly to these chips without signal conditioning except for some pull-up/pull-down resistors (as indicated). Therefore the electrical characteristics are split in different tables. STM-Related Signals: • EXT-RES# (additional filter-C 100n to GND) • UART-TXD, UART-RXD, UART-CTS# • UART-RTS# (pull-up resistor 470kΩ) • IUR-IN# • IUR-OUT# (pull-up resistor 470kΩ) • GPIO[0..8], TESTMODE# • BOOT0 (pull-down resistor 100kΩ)

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 29 of 65 Tamb = 25°C Symbol Item Condition Limit Unit Min Typ Max VIL Low-Level Input Voltage VSUP = 2,5 to 3,6V -0,3 - 0,9 V VIH High-Level Input Voltage VSUP = 2,5 to 3,6V 2,0 - VSUP+0,3 V VOL Low-Level Output Voltage IOL = 4mA - - 0,4 V VOH High-Level Output Voltage IOH = -4mA VSUP-0,4 - - V IOL Low -Level Output Current VOL = 0,4V - - 8 mA IOH High-Level Output Current 2,7V < VSUP < 3,6V VOH = 2.3V - - -8 mA RPU weak pull-up resistor VIN = VSS 30 40 50 kΩ RPD weak pull-down resistor VIN = VDD 30 40 50 kΩ Ilc I/O pad leakage current -3 0 +3 µA Cl Input Capacitance 5 pF Table 10: DC Characteristics, Digital IO (STM32-related) External Slow Clock SLCK: Tamb = 25°C

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 30 of 65 Symbol Item Condition Limit Unit Min Typ Max VLSEL Low-Level Input Voltage VSUP = 2,5 to 3,6V 0,0 - 0,3 V VLSEH High-Level Input Voltage VSUP = 2,5 to 3,6V 0,7xVSUP - VSUP V Ilc I/O pad leakage current VSS ≤ VIN ≤ VSUP -1 - +1 µA Cl Input Capacitance 5 pF Table 11: DC Characteristics, SLCK (STM32 Backup Domain) Note: Signal at SLCK is also fed to CSR8811 and has to comply to Table 12, too. CSR8811 Related Signals: • BT-ACT, BT-STAT, WLAN-DNY, BT-PER • SLCK (caution: also connected to STM-32!) Tamb = 25°C Symbol Item Condition Limit Unit Min Typ Max VIL Low-Level Input Voltage VSUP = 3,3V - 0,4 - 0,4 V VIH High-Level Input Voltage 0,7xVSUP - VSUP+0,4 V VOL Low-Level Output Voltage IOL = 4mA - - 0,4 V VOH High-Level Output Voltage IOH = -4mA 0,75xVSUP - - V Isp-u Input-current Strong pull-up -150 -40 -10 µA Isp-d Input-current Strong pull-down +10 +40 -+150 µA Iwp-u Input-current Weak pull-up -5,0 -1,0 -0,33 µA Iwp-d Input-current Weak pull-down +0,33 -1,0 +5,0 µA Ilc I/O pad leakage current n.a. µA Cl Input Capacitance 1,0 - 5,0 pF Table 12: DC Characteristics, Digital IO (CSR8811 Related) Note: SLCK is connected to both STM32 and CSR8811 so has to fit to STM32 and CSR8811 requirements at the same time.

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 31 of 65 5.6 Power Consumption and Power Down Modes 5.6.1 SPP Configuration The following values are typical power consumption values in the different states. VSUP = 3,3V, Tamb = 25°C, all GPIOs and UART lines open, SLCK: 32,768 kHz Condition Note Current Consumption Unit Slow clock Extern Intern IAvg IAvg standby, no page scan, no inquiry scan 3,7 mA standby, no page scan, no inquiry scan, UICP active Interface down (1) 0,21 0,36 mA device in reset (2) 2,7 mA Table 13: Supply Current SPP Standby Modes no Radio Activity Notes: (1) IUR-IN# and UART-CTS# signals connected to VSup (2) Valid for HW V3, higher in Hw Version < 3 VSUP = 3,3V, Tamb = 25°C, Tx Power = 7 dBm, all GPIOs and UART lines open Condition Note Current Consumption Unit Slow clock Extern Intern IAvg IAvg standby, page scan & inquiry scan interval 1.28s 4,0 4,2 mA standby, page scan & inquiry scan interval 1.28s,UICP active serial Interface down (1) 0,8 1,0 mA Bluetooth connected, no data traffic – close range (Slave) (2) 14,4 14,4 mA Bluetooth connected, data traffic 115 kbit/s – close range (Slave) (2) 21,1 21,1 mA Table 14: Supply Current, SPP Bluetooth Classic Notes: (1) IUR-IN# and UART-CTS# signals connected to VSup (2) about 2 meters through the air

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 32 of 65 The following table shows the average power consumption of BlueMod+SR in LE-mode operating in the peripheral device role. VSUP = 3,3V, Tamb = 25°C, Tx power = +7 dBm, all GPIOs and UART lines open Condition Note Current Consumption Unit Slow clock Extern Intern IAvg IAvg Idle, Advertising on 3 channels, advertising interval: 1,28s 3,5 3,7 mA Idle, Advertising on 3 channels, advertising interval: 1,28s, UICP active serial Interface down 0,31 0,46 mA Connected, connection interval: 40ms, no data traffic (2,3) 4,8 5,0 mA Connected, connection interval: 37,5ms, no data traffic (2,4) 5,3 5,4 mA Connected, connection interval: 37,5ms data traffic (2,4) Tbd Tbd mA Table 15: Supply Current BLE Peripheral Device Role Notes: (2) connection parameters are setup by the central device when connection is established (3) no data to be transmitted, central device sends an empty packet (80 bit) then peripheral device answers (empty packet: 80 bit) (4) these are a typical connection parameters used by an iPhone, iPad or iPad mini device in the central device role

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 33 of 65 5.7 RF Performance 5.7.1 GFSK, PI/4 DQPSK, 8DPSK Receiver VSUP = 2,5V to 3,6V, Tamb = 20°CMeasured conducted according to BT specification v1.2/2.0/2.0 + EDR/2.1/2.1 + EDR/3.0/3.0 + HS/4.0 Receiver Frequency [GHz] Limit BT Unit Min Typ Max Spec Sensitivity at 0.1% BER DH1 2.402 -84 -80 ≤-70 dBm 2.441 -88 -84 2.480 -88 -84 Sensitivity at 0.1% BER DH5 2.402 -84 -80 ≤-70 dBm 2.441 -88 -84 2.480 -88 -84 Sensitivity at 0.1% BER EDR2, PI/4 DQPSK 2.402 -87 -70 ≤-70 dBm 2.441 -91 -70 2.480 -91 -70 Sensitivity at 0.1% BER EDR3, 8DPSK 2.402 -78 -70 ≤-70 dBm 2.441 -82 -70 2.480 -82 -70 Maximum received signal at 0.1% BER with DH1 -20 0 ≥-20 dBm Maximum received signal at 0.1% BER with DH5 -20 0 ≥-20 dBm Maximum received signal at 0.1% BER with EDR2, PI/4 DQPSK -20 0 ≥-20 dBm Maximum received signal at 0.1% BER with EDR3, 8DPSK -20 0 ≥-20 dBm C/I co-channel GFSK 8 11 ≤ 11 dB Adjacent channel selectivity C/I f = f0 + 1MHz GFSK -2 0 ≤ 0 dB Adjacent channel selectivity C/I f = f0 - 1MHz GFSK -1 0 ≤ 0 dB Adjacent channel selectivity C/I f ≥ f0 + 2MHz GFSK -39 -30 ≤ -30 dB Adjacent channel selectivity C/I f ≤ f0 - 2MHz GFSK -30 -30 ≤ -20 dB Adjacent channel selectivity C/I f ≥ f0 + 3MHz GFSK -45 -40 ≤ -40 dB Adjacent channel selectivity C/I f ≤ f0 - 5MHz GFSK -46 -40 ≤ -40 dB Adjacent channel selectivity C/I f = fimage GFSK -25 -9 ≤ -9 dB C/I co-channel PI/4 DQPSK 12 13 ≤ 13 dB Adj. channel selectivity C/I f = f0 + 1MHz π/4 DQPSK -7 0 ≤ 0 dB Adj. channel selectivity C/I f = f0 - 1MHz π/4 DQPSK -4 0 ≤ 0 dB Adj. channel selectivity C/I f ≥ f0 + 2MHz π/4 DQPSK -40 -30 ≤ -30 dB Adj. channel selectivity C/I f ≤ f0 - 2MHz π/4 DQPSK -36 -20 ≤ -20 dB Adj. channel selectivity C/I f ≥ f0 + 3MHz π/4 DQPSK -48 -40 ≤ -40 dB Adj. channel selectivity C/I f ≤ f0 - 5MHz π/4 DQPSK -50 -40 ≤ -40 dB Adj. channel selectivity C/I f = fimage π/4 DQPSK -22 -7 ≤ -7 dB C/I co-channel 8DPSK 18 21 ≤ 21 dB

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 34 of 65 Receiver Frequency [GHz] Limit BT Unit Min Typ Max Spec Adj. channel selectivity C/I f = f0 + 1MHz 8DPSK -4 5 ≤ 5 dB Adj. channel selectivity C/I f = f0 - 1MHz 8DPSK -1 5 ≤ 5 dB Adj. channel selectivity C/I f ≥ f0 + 2MHz 8DPSK -36 -25 ≤ -25 dB Adj. channel selectivity C/I f ≤ f0 - 2MHz 8DPSK -31 -13 ≤ -13 dB Adj. channel selectivity C/I f ≥ f0 + 3MHz 8DPSK -42 -33 ≤ -33 dB Adj. channel selectivity C/I f ≤ f0 - 5MHz 8DPSK -43 -33 ≤ -33 dB Adj. channel selectivity C/I f = fimage 8DPSK -14 0 ≤ -0 dB

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 35 of 65 VSUP = 2,5V to 3,6V, Tamb = -30°CMeasured conducted according to BT specification v1.2/2.0/2.0 + EDR/2.1/2.1 + EDR/3.0/3.0 + HS/4.0 Receiver Frequency [GHz] Limit BT Unit Min Typ Max Spec Sensitivity at 0.1% BER DH1 2.402 -84 -80 ≤-70 dBm 2.441 -88 -84 2.480 -88 -84 Sensitivity at 0.1% BER DH5 2.402 -84 -80 ≤-70 dBm 2.441 -88 -84 2.480 -88 -84 Sensitivity at 0.1% BER EDR2, PI/4 DQPSK 2.402 -88 -70 ≤-70 dBm 2.441 -91 -70 2.480 -91 -70 Sensitivity at 0.1% BER EDR3, 8DPSK 2.402 -78 -70 ≤-70 dBm 2.441 -82 -70 2.480 -82 -70 Maximum received signal at 0.1% BER DH1 -20 0 ≥-20 dBm Maximum received signal at 0.1% BER PI/4 DQPSK -20 0 ≥-20 dBm Maximum received signal at 0.1% BER 8DPSK -20 0 ≥-20 dBm VSUP = 2,5V to 3,6V, Tamb = +85°C Measured conducted according to BT specification v1.2/2.0/2.0 + EDR/2.1/2.1 + EDR/3.0/3.0 + HS/4.0 Receiver Frequency [GHz] Limit BT Unit Spec Sensitivity at 0.1% BER DH1 2.402 -84 -80 ≤-70 dBm 2.441 -88 -84 2.480 -88 -84 Sensitivity at 0.1% BER DH5 2.402 -84 -80 ≤-70 dBm 2.441 -88 -84 2.480 -88 -84 Sensitivity at 0.1% BER EDR2, PI/4 DQPSK 2.402 -87 -70 ≤-70 dBm 2.441 -90 -70 2.480 -90 -70 Sensitivity at 0.1% BER EDR3, 8DPSK 2.402 -78 -70 ≤-70 dBm 2.441 -80 -70 2.480 -80 -70 Maximum received signal at 0.1% BER DH1 -20 0 ≥-20 dBm Maximum received signal at 0.1% BER PI/4 DQPSK -20 0 ≥-20 dBm Maximum received signal at 0.1% BER 8DPSK -20 0 ≥-20 dBm Table 16: RF Performance GFSK, PI/4 DQPSK, 8DPSK Receiver Notes: (b) For calculating true performance add product specific antenna gain

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 36 of 65 5.7.2 GFSK, PI/4 DQPSK, 8DPSK Transmitter VSUP = 2,5V to 3,6V, Tamb = +20°CMeasured conducted according to BT specification v1.2/2.0/2.0 + EDR/2.1/2.1 + EDR/3.0/3.0 + HS/4.0 Transmitter Frequency [GHz] Limit BT Unit RF transmit power 50 Ω load, at antenna Class 1 device GFSK b) 2.402 2,7 5,5 0 to 20 dBm 2.441 4,7 7,5 2.480 5,7 8,5 RF transmit power 50 Ω load, at antenna Class 1 device EDR2, π/4 DQPSK b) 2.402 GFSK 2,0 ∆TX = -4 to 1 dBm 2.402 π/4 DQPSK 0,9 2.441 GFSK 4,7 2.441 π/4 DQPSK 3,7 2.480 GFSK 5,6 2.480 π/4 DQPSK 4,6 RF transmit power 50 Ω load, at antenna Class 1 device EDR3, 8DPSK b) 2.402 GFSK 2,1 ∆TX = -4 to 1 dBm 2.402 8DPSK 1,0 2.441 8GFSK 4,8 2.441 8DPSK 3,7 2.480 GFSK 5,6 2.480 8DPSK 4,6 RF power control range 16 30 ≥16 dB RF power range control resolution 2 4 8 2 to 8 dB 20 dB bandwidth for modulated carrier 925 1000 ≤1000 kHz ICFT -75 ±25 +75 ≤ ±75 kHz Carrier frequency drift (packet DH1) 7 25 ≤ 25 kHz Drift Rate 5 20 ≤ 20 kHz/ 50µs ∆f1avg “Maximum Modulation” 140 164 175 ≥140 to ≤175 kHz ∆f2max “Minimum Modulation” 115 140 >115 kHz ∆f2avg /∆f1avg 0,8 0,91 ≥ 0,8

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 37 of 65 VSUP = 2,5V to 3,6V, Tamb = -30°CMeasured conducted according to BT specification v1.2/2.0/2.0 + EDR/2.1/2.1 + EDR/3.0/3.0 + HS/4.0 Transmitter Frequency [GHz] Limit BT Unit RF transmit power 50 Ω load, at antenna Class 1 device GFSK b) 2.402 2,7 3,5 0 to 20 dBm 2.441 4,7 6,5 2.480 5,7 7,5 RF transmit power 50 Ω load, at antenna Class 1 device EDR2, π/4 DQPSK b) 2.402 GFSK -0,5 ∆TX = -4 to 1 dBm 2.402 π/4 DQPSK -1,9 2.441 GFSK 2,5 2.441 π/4 DQPSK 1,2 2.480 GFSK 4,0 2.480 π/4 DQPSK 2,8 RF transmit power 50 Ω load, at antenna Class 1 device EDR3, 8DPSK b) 2.402 GFSK -0,5 ∆TX = -4 to 1 dBm 2.402 8DPSK -1,7 2.441 GFSK 2,5 2.441 8DPSK 1,2 2.480 GFSK 4,0 2.480 8DPSK 2,8 20 dB bandwidth for modulated carrier 925 1000 ≤1000 kHz Initial carrier frequency tolerance -75 10 +75 ≤ ±75 kHz Carrier frequency drift (packet DH1) 6 25 ≤ 25 kHz Drift Rate 5 20 20 kHz/ 50µs ∆f1avg “Maximum Modulation” 140 164 175 ≥140 to ≤175 kHz ∆f2max “Minimum Modulation” 115 142 ≥ 115 kHz ∆f2avg /∆f1avg 0,8 0,92 ≥ 0,8

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 38 of 65 VSUP = 2,5V to 3,6V, Tamb = +85°CMeasured conducted according to BT specification v1.2/2.0/2.0 + EDR/2.1/2.1 + EDR/3.0/3.0 + HS/4.0 Transmitter Frequency [GHz] Limit BT Unit RF transmit power 50 Ω load, at antenna Class 1 device GFSK b) 2.402 1,8 4,0 0 to 20 dBm 2.441 3,8 6,0 2.480 4,8 7,0 RF transmit power 50 Ω load, at antenna Class 1 device EDR2, π/4 DQPSK b) 2.402 GFSK 0,3 ∆TX = -4 to 1 dBm 2.402 π/4 DQPSK -0,8 2.441 GFSK 2,8 2.441 π/4 DQPSK 1,7 2.480 GFSK 4,0 2.480 π/4 DQPSK 2,9 RF transmit power 50 Ω load, at antenna Class 1 device EDR3, 8DPSK b) 2.402 GFSK 0,3 ∆TX = -4 to 1 dBm 2.402 8DPSK -0,8 2.441 GFSK 2,8 2.441 8DPSK 1,7 2.480 GFSK 4,0 2.480 8DPSK 2,9 20 dB bandwidth for modulated carrier 925 1000 ≤1000 Initial carrier frequency tolerance -75 10 +75 ≤ ±75 Carrier frequency drift (packet DH1) 7 25 ≤ 25 Drift Rate 5 20 20 ∆f1avg “Maximum Modulation” 140 164 175 ≥140 to ≤175 ∆f2max “Minimum Modulation” 115 140 ≥ 115 kHz ∆f2avg /∆f1avg 0,8 0,91 ≥ 0,8 Table 17: RF Performance GFSK, PI/4 DQPSK, 8DPSK Transmitter Notes: (b) For calculating true performance add product specific antenna gain

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 39 of 65 5.7.3 BLE Receiver VSUP = 2,5V to 3,6V, Tamb = +20°CMeasured conducted according to BT specification RF-PHY.TS/4.0.1 Receiver Frequ /GHz Min Typ Max BT Spec Unit Sensitivity at 30,8% PER 2,402 -87 -83 ≤ -70 dBm 2,440 -90 -86 2,480 -90 -86 Reported PER during PER report integrity test 2,426 50 50 65,4 50 < PER < 65,4 % Maximum received signal at 30,8% PER -10 0 ≥ -10 dBm Continuous power required to block Bluetooth reception at -67dBm with 0,1%PER 0,030 - 2,000 -30 > 0 -30 dBm 2,000 - 2,400 -35 0 -35 2,500 -3,000 -35 0 -35 3,000 . 12,75 -30 >0 -30 C/I co-channel 8 21 ≤21 dB Adjacent channel Selectivity C/I F = F0 + 1 MHz 1 15 ≤15 dB F = F0 - 1 MHz -9 15 ≤15 dB F = F0 + 2 MHz -27 -17 ≤-17 dB F = F0 - 2 MHz -19 -15 ≤-15 dB F = F0 + 3 MHz -43 -27 ≤-27 dB F = F0 - 5 MHz -49 -27 ≤-27 dB F = Fimage -24 -9 ≤-9 dB Maximum level of intermodulation interferers -50 -18 ≥-50 dBm VSUP = 2,5V to 3,6V, Tamb = -30°C Measured conducted according to BT specification RF-PHY.TS/4.0.1 Receiver Frequ /GHz Min Typ Max BT Spec Unit Sensitivity at 30,8% PER 2,402 -87 -83 ≤ . 70 dBm 2,440 -90 -87 2,480 -90 -87 Reported PER during PER report integrity test 2,426 50 50 65,4 50 < PER < 65,4 % Maximum received signal at 30,8% PER -10 0 ≥ -10 dBm VSUP = 2,5V to 3,6V, Tamb = +85°C Measured conducted according to BT specification RF-PHY.TS/4.0.1 Receiver Frequ /GHz Min Typ Max BT Spec Unit Sensitivity at 30,8% PER 2,402 -87 -83 ≤ . 70 dBm 2,440 -89 -85 2,480 -89 -85 Reported PER during PER report integrity test 2,426 50 50 65,4 50 < PER < 65,4 % Maximum received signal at 30,8% PER -10 0 ≥ -10 dBm Table 18: RF Performance BLE Receiver

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 40 of 65 5.7.4 BLE Transmitter VSUP = 2,5V to 3,6V, Tamb = +20°C Measured conducted according to BT specification RF-PHY.TS/4.0.1 Transmitter Frequ /GHz Min Typ Max BT Spec Unit RF Transmit Power 2,402 2,0 5,5 10 -20 to +10 dBm 2,440 4,0 7,5 10 2,480 5,0 8,5 10 ACP F = F0 ± 2MHz -28 -20 ≤ -30 dBm F = F0 ± 3MHz -38 -30 ≤ -30 F = F0 ± > 3MHz <-60 -30 ≤ -30 ∆f1avg maximum modulation 225 268 275 225 < f1avg < 275 kHz ∆f2max minimum modulation 185 214 ≥ 185 kHz ∆f2avg / ∆f1avg 0,8 0,83 ≥ 0,8 Frequency Offset -95 ±25 +95 ± 150 kHz Carrier drift rate 4 20 ≤ 20 kHz/ 50µs Carrier drift 5 50 ≤ 50 kHz VSUP = 2,5V to 3,6V, Tamb = -30°C Measured conducted according to BT specification RF-PHY.TS/4.0.1 Transmitter Frequ /GHz Min Typ Max BT Spec Unit RF transmit Power 2,402 0,5 4,0 10 -20 to +10 dBm 2,440 2,5 6,5 10 2,480 3,5 7,5 10 ACP F = F0 ± 2MHz -28 -20 ≤ -30 dBm F = F0 ± 3MHz -35 -30 ≤ -30 F = F0 ± > 3MHz <-60 -30 ≤ -30 ∆f1avg maximum modulation 225 266 275 225 < f1avg < 275 kHz ∆f2max minimum modulation 185 225 ≥ 185 kHz ∆f2avg / ∆f1avg 0,8 0,85 ≥ 0,8 Frequency Offset -95 ±25 +95 ± 150 kHz Carrier drift rate 4 20 ≤ 20 kHz/ 50µs Carrier drift 5 50 ≤ 50 kHz

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 41 of 65 VSUP = 2,5V to 3,6V, Tamb = +85°C Measured conducted according to BT specification RF-PHY.TS/4.0.1 Transmitter Frequ /GHz Min Typ Max BT Spec Unit RF transmit Power 2,402 1,0 4,0 10 -20 to +10 dBm 2,440 3,0 6,0 10 2,480 4,0 7,0 10 ACP F = F0 ± 2MHz -30 -20 ≤ -30 dBm F = F0 ± 3MHz -42 -40 ≤ -30 F = F0 ± > 3MHz <-60 -30 ≤ -30 ∆f1avg maximum modulation 225 267 275 225 < f1avg < 275 kHz ∆f2max minimum modulation 185 214 ≥ 185 kHz ∆f2avg / ∆f1avg 0,8 0,83 ≥ 0,8 Frequency Offset -95 ±25 +95 ± 150 kHz Carrier drift rate 5 20 ≤ 20 kHz/ 50µs Carrier drift 5 50 ≤ 50 kHz Table 19: RF Performance BLE Transmitter

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 42 of 65 5.7.5 Antenna-Gain and Radiation Pattern If BlueMod+SR/AI is integrated into an end product while the recommendations depicted in 6.4 Placement Recommendation are maintained, the following typical antenna radiation patterns can be expected. Radiation Pattern will depend on the end products PCB size, masses in the antenna environment, housing material and geometrics. Figure 11: Typical Antenna Radiation Pattern at 2402MHz YXZ

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 43 of 65 Figure 12: Typical Antenna Radiation Pattern at 2441MHz Figure 13: Typical Antenna Radiation Pattern at 2480MHz YXZYXZ

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 44 of 65 5.8 Power-Up Time The time until the BlueMod+SR is able to accept link requests or serial data depends on the firmware version. In the SPP firmware version 1.103 the module is command ready after at least 1,1 s. Bluetooth links are accepted tbd s after reset. Note: For further information refer to the document BlueMod+SR_Startup_Timing_r01 [6]

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 45 of 65 6 Mechanical Characteristics 6.1 Dimensions 17,0+0,2-0,0FCC ID RFRMSRstollmannBlueMod+SR2,510,0+0,2-0,00,1+0,1-0,10,1+0,1-0,1Verbleibende Stege nach Nutzentrennung/remaining break tabs after separation2,6 Figure 14: BlueMod+SR/AI dimensions 17,0+0,2-0,0FCC ID RFRMSRstollmannBlueMod+SR2,510,0+0,2-0,00,1+0,1-0,10,1+0,1-0,1Verbleibende Stege nach Nutzentrennung/remaining break tabs after separation Figure 15: BlueMod+SR/AP Dimensions

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 46 of 65 6.2 Recommended Land Pattern F1E1D1C1B1A1 A2 A3 A4 A5 A6 A7 A8F2E2D2C2B2F3E3D3C3B3F4E4D4C4B4F5E5D5C5B5F6E6D6C6B6F7E7D7C7B7F8E8D8C8B81,251,257x1,5=10,55x1,5=7,50,917,010,0 Figure 16: BlueMod+SR Land Pattern

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 48 of 65 6.4 Placement Recommendation To achieve best radio performance for BlueMod+SR/AI, it is recommended to use the placement shown in Figure 18. max.0,5 4,51010max.0,51015no bare copper (exept solder pads for module)no copper and components on any layerno components on any layerprovide solid ground plane(s) as large as possible around17no conductive parts allowed202040area Figure 18: BlueMod+SR/AI Placement Recommendation 6.5 Housing Guidelines The individual case must be checked to decide whether a specific housing is suitable for the use of the internal antenna. A plastic housing must at least fulfill the following requirements: • Non-conductive material, non-RF-blocking plastics • No metallic coating • ABS is suggested 6.6 Antenna Issues BlueMod+SR is shipped with 2 different antenna designs: • BlueMod+SR/AI comprises a ceramic antenna which as a component is soldered to the circuit board. This is functional for a BlueMod+SR/AI integrated into a plastic housing. No additional antenna is required. For an external antenna to be set in, e.g. because the BlueMod+SR is integrated into a metal housing, the ceramic antenna is replaced. • BlueMod+SR/AP routes the antenna signal to pin A-8 The gain of the external antenna shall not exceed +2dBi. When using an external Antenna the antenna is fixed and cannot be removed or replaced by the end user. The performance of the internal antenna respectively the external antenna has in any

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 49 of 65 case to be checked within the final integration environment. Adjacent PCBs, components, cables, housings etc. could otherwise influence the radiation pattern or be influenced by the radio wave energy. It must be ensured that the antenna is not co-located or operating in conjunction with any other antennas, transmitters, cables or connectors. When the internal ceramic antenna is used, certain restrictions are to be considered. tbd 6.7 Safety Guidelines tbd

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 50 of 65 7 Application Diagram The following schematic shows a typical application of BlueMod+SR. The module is connected to some MCU running the application layer. MCU and BlueMod+SR use the same 3,3V power supply. Provisions are made for upgrading the firmware (BOOT0 and EXT-RES# are managed by the MCU). The serial interface has RTS/CTS flow control but no UICP support in this example. The Hangup feature to close down the link is provided. As an option to save power, there is an external slow clock oscillator. All other module pins may be left unconnected. Host MCUVDDGND+3V3GPIO (o)In this example BlueMod+SR is connected to an MCU supporting RTS/CTS flow control and Hangup.Firmware update is supported (BOOT0, EXT-RES# connected).The slow clock oscillator (32,768kHz ) is optional; it helps to save power during power down states.1kBlueMod+SR/AIC-1,E-6,F-6 VSUPGNDB-1 EXT-RES#BOOT0GPIO (o)UART-RXDUART-TXDUART-CTS#UART-RTS#GPIO[4]/HangupTXD (o)RXD (i)RTS# (o)CTS# (i)GPIO (o)SLCK32,768kHz square+3V3The oscillator is optional. Leave A-6 openor tie to GND if the oscillator is not present.E-1D-2F-4F-3D-7D-4A-6all GND pads (14) must be connected.Blocking capacitors not shown.pushpull or ODpushpullpushpull Figure 19: Typical Application Schematics

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 51 of 65 8 Approvals/Certifications The BlueMod+SR/AI has been tested to comply to the appropriate EU, FCC and IC directives. CE testing is intended for end products only. Therefore CE testing is not mandatory for a Bluetooth Module sold to OEM’s. Stollmann E+V GmbH provides CE tested Modules for customers in order to ease CE compliance assessment of end products and to minimize test effort. 8.1 Declaration of Conformity CE tbd

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 52 of 65 8.2 FCC Compliance The BlueMod+SR/AI has been tested to fulfill the FCC requirements. Test reports are available on request. Grants of the Full Modular Approval will be shown below. For selling products implementing the BlueMod+SR/AP in the USA you’ll have to apply for a Class II Permissive Change from the FCC authorities. Depending on antenna gain and other factors the FCC TCB will issue a reduced test plan for re-testing. Stollmann can assist customers with conducting this procedure on request. Especially the test plan reduction and cost optimization may be items worth to look at. 8.2.1 FCC Grant Tbd FCC Statement This device complies with 47 CFR Part 2 and Part 15 of the FCC Rules and with. Operation is subject to the following two conditions: (1) this device my not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. 8.2.3 FCC Caution Warning: Changes or modifications made to this equipment not expressly approved by Stollmann Entwicklungs- und Vertriebs- GmbH may void the FCC authorization to operate this equipment. 8.2.4 FCC Warning This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 53 of 65 Consult the dealer or an experienced radio/TV technician for help. 8.2.5 FCC RF-exposure Statement The BlueMod+SR/AI complies with the FCC/IC RF radiation exposure limits set forth for an uncontrolled environment. The output power is < 10mW e.i.r.p. and therefore according to “FCC KDB 447498 D01 General RF Exposure Guidance v05” Appendix A, table “SAR Exclusion Threshold”, excluded from SAR evaluation for test separation distances ≥5mm and if it is not used in co-locations with other antennas. If the product implementing the BlueMod+SR/AI has other antennas in co-location or separation distances < 5mm an FCC TCB should be asked for a Class II Permissive Change. RF exposure evaluation of devices implementing the BlueMod+SR/AP should be done with the collaboration of the FCC TCB working on the Class II Permissive Change Request.

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 54 of 65 8.2.6 FCC Labeling Requirements for the End Product Any End Product integrating the BlueMod+SR/AI or /AP must be labeled with at least the following information: This device contains transmitter with FCC ID: RFRMSR IC: 4957A-MSR

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 55 of 65 8.3 IC Compliance The BlueMod+SR/AI has been tested to fulfill the IC requirements. Test reports RSS-210 of Industry Canada are available on request. Grants of the Full Modular Approval will be shown below. For selling products implementing the BlueMod+SR/AP in Canada you’ll have to apply for a Class II Permissive Change from the IC authorities. Depending on antenna gain and other factors the IC TCB will issue a reduced test plan for re-testing. Stollmann can assist customers with conducting this procedure on request. Especially the test plan reduction and cost optimization may be items worth to look at. 8.3.1 IC Grant tbd

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 56 of 65 8.3.2 IC Statement (i) Ce dispositif doit être installé et exploité dans une enceinte entièrement fermée afin de prévenir les rayonnements RF qui pourraient autrement perturber la navigation aéronautique. L’installation doit être effectuée par des installateurs qualifiés, en pleine conformité avec les instructions du fabricant. (ii) Ce dispositif ne peut être exploité qu'en régime de non-brouillage et de non-protection, c’est-à-dire que l’utilisateur doit accepter que des radars de haute puissance de la même bande de fréquences puissent brouiller ce dispositif ou même l’endommager. D’autre part, les capteurs de niveau à propos desquels il est démontré qu’ils perturbent une exploitation autorisée par licence de fonctionnement principal doivent être enlevés aux frais de leur utilisateur. This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. NOTICE: This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada. 8.3.3 IC Caution Warning: Changes or modifications made to this equipment not expressly approved by Stollmann Entwicklungs- und Vertriebs-GmbH may void the IC authorization to operate this equipment. 8.3.4 IC RF-exposure Statement This equipment is portable device. The output power of this device is less than 20mW. The SAR test is not required. RF exposure evaluation of devices implementing the BlueMod+SR/AP should be done with the collaboration of the IC TCB working on the Class II Permissive Change Request.

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 57 of 65 8.3.5 IC Labeling Requirements for the End Product Any end product integrating the BlueMod+SR/AI or /AP must be labeled with at least the following information: This device contains transmitter with FCC ID: RFRMSR IC: 4957A-MSR 8.3.6 IC Label Information BlueMod+SR The BlueMod+SR shows no IC-ID on the product label, because there is no space available. IC allows on request to state the IC-ID in the product manual. This product has been granted to do so. The IC-ID is: 4957A-MSR

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 58 of 65 8.4 Bluetooth Qualification The BlueMod+SR is a qualified design according to the Bluetooth Qualification Program Reference Document (PRD) V2.1. The Qualified Design ID (QDID) is: tbd For further information about marking requirements of your product attention should be paid the Bluetooth Product Marking Guide at https://www.bluetooth.org/Download/Marking_Guide_20060601.pdf According to the Bluetooth SIG rules (Qualification Program Reference Document – PRD V2.1) you are required to perform the mandatory End Product Listing (EPL) for your product. For further information see www.Bluetooth.org or contact Stollmann.

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 59 of 65 8.5 RoHS Declaration Declaration of environmental compatibility for supplied products: Hereby we declare to our best present knowledge based on declaration of our suppliers that this product do not contain by now the following substances which are banned by Directive 2011/65/EU (RoHS 2) or if contain a maximum concentration of 0,1% by weight in homogeneous materials for • Mercury and mercury compounds • Chromium (VI) • PBB (polybrominated biphenyl) category • PBDE (polybrominated biphenyl ether) category • And a maximum concentration of 0,01% by weight in homogeneous materials for • Cadmium and cadmium compounds 9 Related Documents [1] CD00171190.pdf Oct. 2011 Rev 14 (STM32_Reference) [2] CD00191185.pdf April 2011 Rev 8 (STM32_datasheet) [3] Stollmann: UICP_UART_Interface_Control_Protocol_r01.pdf [4] Stollmann: AppNote_B0601_Antenna_Design_V1_0.pdf [5] Stollmann: BlueMod+SR AT Command Reference [6] Stollmann: BlueMod+SR_Startup_Timing_r01.pdf

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 60 of 65 10 Packing The BlueMod+SR modules are packed using carrier tape. Abzugrichtung von der Rolle/pull off direction from reelFCC ID RFRMSRstollmannBlueMod+SRFCC ID RFRMSRstollmannBlueMod+SR25 Leertaschen Vorspann pro Verpackungseinheit/25 empty pockets as leader per packing unit15 Leertaschen Nachspann pro Verpackungseinheit/15 empty pockets as trailer per packing unitFCC ID RFRMSRstollmannBlueMod+SRFCC ID RFRMSRstollmannBlueMod+SR

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 61 of 65 10.1 Tape The dimensions of the tape are shown in the drawing below (values in mm): 2,0+0,1-0,110,9+0,1-0,118,3+0,1-0,1R 0,51,75+0,10-0,1024,0+0,3-0,310x4,0=40,0+0,2-0,21,5+0,1-0,012,011,5+0,1-0,10,33,0 10.2 Reel tbd

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 62 of 65 Label Information 10.3 Package Label Package box, dry shield bag and reel are each marked with the following label: Stollmann E+V GmbHnamep/nfirmwarefw p/ntracequantitybundledesigned and manufactured in GermanyBlueMod+SR/Axxxxxx-yySR/Vx.xxxMwwyyqBNDLxxxxxxxxxxxx Field Description name Name of product p/n Product number firmware Firmware version fw p/n Product number of firmware trace [Manufacturer M (optional)]Date (YearCalendarWeek) YYWW quantity Number of contained modules If the label on the package box is different to the label described please contact Stollmann for detailed information.

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 63 of 65 11 Ordering Information 11.1 Part Numbers BlueMod+SR is available in the following variants: Name Antenna Order No. MOQ / units Comments BlueMod+SR/AI internal 53231-xx 50 BlueMod+SR/AP external 53252-xx 500 BlueEva+SR Internal 53249-xx 1 Evaluation Kits Other variants on request, please contact Stollmann sales department. 11.2 Standard Packing Unit The standard packing unit is 500 pieces Tape and Reel 11.3 Evaluation Kit The kit BlueEva+SR is available to evaluate functionality and start your firmware implementation.

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 64 of 65 History Version Release Date By Change description r02 04.02.2013 MW/JW First preliminary release r03 21.02.2013 MW/GJ GJ JW FH signal naming conventions harmonized signals in tables re-sorted corrected some typos updated dimension drawing (with new antenna) added land pattern drawing renamed chapter “Restricted Area” into “Placement Recommendation” and replaced text with drawing Figure 10 “Pin Numbering” added Added current consumption for standby mode Chapter 1 Introduction revised r04d01 22.02.2013 06.03.2013 19.04.2013 ff. JW MW Spelling and formatting Chapter 3, Application Examples added to several sub chapters Chapter 3.1 Power Supply, requirements lowered Chapter 3.3 allowed to use series resistor to connect external low-active reset Chapter 3.5 Serial Interface updated, UICP included Chapter 3.6 renamed to GPIO Interface Chapter 3.10 minor changes in text Enhanced chapter 3.13 Pin Strapped System Memory Boot Mode Invocation New chapter 3.15 Serial Wire Interface Chapter 4.2 Pin Description, tables updated and corrected, removed signals “/BT-CONNECTED” and “STM32-WAKEUP” New chapter 4.3 Handling of unused Signals Chapter 5.6 Power Consumption Tables updated Chapter 5.7 RF parameter updated Chapter 5.7.5 Antenna Gain and Radio Pattern updated Chapter 6.3 updated New chapter 7 Application Diagram

BlueMod+SR/AI BlueMod+SR/AP Hardware Reference Release r04d01 www.stollmann.de Page 65 of 65 Stollmann Entwicklungs- und Vertriebs-GmbH Mendelssohnstraße 15 D 22761 Hamburg Germany Phone: +49 (0)40 890 88-0 Fax: +49 (0)40 890 88-444 E-mail: info@stollmann.de www.stollmann.de

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