Silicon Laboratories Finland WT11 Bluetooth Class I EDR Module User Manual WT11 Data Sheet and manual

Silicon Laboratories Finland Oy Bluetooth Class I EDR Module WT11 Data Sheet and manual

User Manual

WT11 Preliminary Data Sheet Version 1.4 Thursday, May 04, 2006
Copyright © 2000-2006 Bluegiga Technologies All rights reserved. Bluegiga Technologies assumes no responsibility for any errors, which may appear in this manual. Furthermore, Bluegiga Technologies reserves the right to alter the hardware, software, and/or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. Bluegiga Technologies’ products are not authorized for use as critical components in life support devices or systems. The WRAP is a registered trademark of Bluegiga Technologies The Bluetooth trademark is owned by the Bluetooth SIG Inc., USA, and is licensed to Bluegiga Technologies. All other trademarks listed herein are owned by their respective owners.
2Contents: 1. Device Features Overview .......................................................................... 4 2. General Description.................................................................................... 5 2.1 Physical Outlook..........................................................................................5 2.2 Block Diagram and Descriptions.....................................................................6 2.2.1 BlueCore04 ...........................................................................................6 2.2.2 Crystal .................................................................................................7 2.2.3 Flash....................................................................................................7 2.2.4 Balun ...................................................................................................7 2.2.5 Power amplifier......................................................................................7 2.2.6 Switch ..................................................................................................7 2.2.7 Matching...............................................................................................7 2.2.8 Antenna................................................................................................7 2.2.9 U.FL.....................................................................................................7 2.2.10 USB ..................................................................................................7 2.2.11 Synchronous Serial Interface ................................................................7 2.2.12 UART.................................................................................................7 2.2.13 Audio PCM Interface ............................................................................7 2.2.14 Programmable I/O...............................................................................8 2.2.15 Reset.................................................................................................8 2.2.16 802.11 Coexistence Interface................................................................8 2.3 Applications ................................................................................................8 2.4 Product names and codes .............................................................................9 3. Electrical Charasteristics .......................................................................... 12 4. WT11 PIN description .............................................................................. 13 5. Foot print ................................................................................................. 15 6. Antenna Keep out area ............................................................................. 16 7. WT11-A Physical Dimensions ................................................................... 17 7.1 UART Interface.......................................................................................... 18
3VERSION HISTORY Version: Date: Author: Comments: 1.0 11.5.2005 MS Preliminary version 1.1 14.9.2005 PR Dimension update 1.2 30.1.2006 MS Images, dimensions and interfaces updated. 1.3 6.2.2006 MS Foot print fixed 1.4 2.3.2006 PR Figure 6 added
41. DEVICE FEATURES OVERVIEW • Fully Qualified Bluetooth system v2.0 + EDR, CE and FCC • Class 1, range up to 300 meters • Integrated chip antenna or UFL connector • Industrial temperature range from -40oC to +85oC • Enhanced Data Rate (EDR) compliant with v2.0.E.2 of specification for both 2Mbps and 3Mbps modulation modes • RoHS Compliant • Full Speed Bluetooth Operation with Full Piconet • Scatternet Support • USB version 2.0 compatible • UART with bypass mode • Support for 802.11 Coexistence • 8Mbits of Flash Memory
52. GENERAL DESCRIPTION 2.1 Physical Outlook Figure 1: Physical outlook of WT11-A Figure 2: Physical outlook of WT11-E
62.2 Block Diagram and Descriptions +3.3VU.FLconnector MatchingBlueCore048 MBitFlash Memory26 MHzCrystalUARTSPIPCMUSBPIOWT11RESETChipantennaBalunPoweramplifier Switch Figure 3: Block Diagram of WT11 2.2.1 BlueCore04 BlueCore4 is a single chip Bluetooth solution which implements the Bluetooth radio transceiver and also an on chip microcontroller. BlueCore4 implements Bluetooth® 2.0+EDR (Enhanced Data Rate) and it can deliver data rates up to 3 Mbps. The microcontroller (MCU) on BlueCore04 acts as interrupt controller and event timer run the Bluetooth software stack and control the radio and host interfaces. A 16-bit reduced instruction set computer (RISC) microcontroller is used for low power consumption and efficient use of memory. BlueCore04 has 48Kbytes of on-chip RAM is provided to support the RISC MCU and is shared between the ring buffers used to hold voice/data for each active connection and the general purpose memory required by the Bluetooth stack.
72.2.2 Crystal The crystal oscillates at 26MHz. 2.2.3 Flash Flash memory is used for storing the Bluetooth protocol stack and Virtual Machine applications. It can also to the optional external RAM for memory intensive applications. 2.2.4 Balun Balun changes the balanced input/output signal of the module to unbalanced signal of the monopole antenna. 2.2.5 Power amplifier Power amplifier is used to increase the output power to a level required by class 1 specification. 2.2.6 Switch Switch is used to separate transmission and receiver modes. 2.2.7 Matching Antenna matching components match the antenna to 50 Ohms and also selects between chip antenna and UFL connector. 2.2.8 Antenna The antenna is ACX AT3216 chip antenna. 2.2.9 U.FL This is a standard U.FL male connector for external antenna possibility. 2.2.10 USB This is a full speed Universal Serial Bus (USB) interface for communicating with other compatible digital devices. WT11 acts as a USB peripheral, responding to requests from a Master host controller such as a PC. 2.2.11 Synchronous Serial Interface This is a synchronous serial port interface (SPI) for interfacing with other digital devices. The SPI port can be used for system debugging. It can also be used for programming the Flash memory. 2.2.12 UART This is a standard Universal Asynchronous Receiver Transmitter (UART) interface for communicating with other serial devices. 2.2.13 Audio PCM Interface The audio pulse code modulation (PCM) Interface supports continuous transmission and reception of PCM encoded audio data over Bluetooth.
82.2.14 Programmable I/O WT11 has a total of 6 digital programmable I/O terminals. These are controlled by firmware running on the device. 2.2.15 Reset This can be used to reset WT11. 2.2.16 802.11 Coexistence Interface Dedicated hardware is provided to implement a variety of coexistence schemes. Channel skipping AFH (Adaptive Frequency Hopping), priority signaling, channel signaling and host passing of channel instructions are all supported. The features are configured in firmware. Since the details of some methods are proprietary (e.g. Intel WCS) please contact Bluegiga Technologies for details. 2.3 Applications WT11 Bluetooth module is designed for: • Hand held terminals • Industrial devices • Point-of-Sale systems • PCs • Personal Digital Assistants (PDAs) • Computer Accessories • Access Points • Automotive Diagnostics Units
92.4 Product names and codes iWRAP firmware: • WT11 with internal chip antenna, iWRAP firmware: WT11-A-AI • WT11 with UFL connector, iWRAP firmware: WT11-E-AI HCI firmware: • WT11 with internal chip antenna, HCI firmware: WT11-A-HCI • WT11 with UFL connector, HCI firmware: WT11-E-HCI Notes: HCI firmware is delivered with USB as host interface! Custom firmware: • WT11 with internal chip antenna, custom firmware: WT11-A-C • WT11 with UFL connector, custom firmware: WT11-E-C Notes: Custom firmware requires properly filled custom firmware document or custom firmware ID.
10General Specifications Item Specification Supply voltage 3.3 V ± 0.1 V regulated voltage. (Noise < 10 mVP-P) Supply current Maximum current in TX mode: 170.0mA Maximum current in RX mode: 170.0mA Frequency range 2400 MHz … 2483.5 MHz (ISM-Band) Guard band 2 MHz < F < 3.5 MHz (Europe, Japan, USA) Carrier frequency 2402 MHz … 2480 MHz, F = 2402 + k MHz, k = 0 … 78 Modulation method GFSK (1 Mbps), Π/4 DQPSK (2Mbps) and 8DQPSK (3Mbps) Hopping 1600 hops/s, 1 MHz channel space Maximum data rate GFSK: Asynchronous, 723.2 kbps / 57.6 kbps Synchronous: 433.9 kbps / 433.9 kbps Π/4 DQPSK: Asynchronous, 1448.5 kbps / 115.2 kbps Synchronous: 869.7 kbps / 869.7 kbps 8DQPSK: Asynchronous, 2178.1 kbps / 177.2 kbps Synchronous: 1306.9 kbps / 1306.9 kbps Receiving signal range -82 to -20 dBm (Typical) Receiver IF frequency 1.5 MHz (Center frequency) Transmission power Minimum: -11 …-9 dBm Maximum +16 … +20 dBm
11RF input impedance 50 Ω Baseband crystal OSC 26 MHz Output interfaces 6 GPIO, PCM, SPI, UART, USB Operation temperature -40ºC … +85ºC Storage temperature -40ºC … +105ºC Compliance Bluetooth specification, version 2.0 + EDR USB specification USB specification, version 1.2 Table 1: General specifications
123. ELECTRICAL CHARASTERISTICS Rating Min Max Storage temperature -40°C +150°C Supply Voltage: VDD 3.2V 3.4V Table 2: Absolute Maximum Ratings Operating conditions Min Max Operating Temperature Range: -40°C +85°C Supply Voltage: VDD 3.2V 3.4V Table 3: Recommended Operating Conditions Digital terminals Min Typ Max Unit Input voltage VIL input logic level low (VDD=3.3V) -0.4 +0.8 V VIH input logic level high 0.7VDD VDD+0.1 V Output voltage VOL output logic level low (VDD=3.3V) (lo = 3.0mA) 0.2 V VOL output logic level high (VDD=3.3V) (lo = -3.0mA) VDD-0.2 V Table 4: Input/Output Terminal Characteristics
134. WT11 PIN DESCRIPTION The PIN description of WT11 is shown in the table below. No. Pin name I/O Description 1 GND GND Ground 2 3V3 VDD Power supply connection 3 PIO2 I/O Programmable I/O lines 4 PIO3 I/O Programmable I/O lines 5 NRTS O UART RTS (internal pull-up, active low) 6 RXD I UART RX (internal pull down) 7 PCMO O Synchronous 8 kbps data out (internal Pull down) 8 USB_D+ A USB data plus (Internal 22 ohm serial resistor) 9 USB_D- A USB data minus (Internal 22 ohm serial resistor) 10 NCTS I UART CTS (internal pull down, active low) 11 PCMI I Synchronous 8 kbps data in (internal pull-down) 12 PCMC I/O Synchronous data clock (internal pull-down) 13 PCMS I/O Synchronous data strobe (internal pull-down) 14 GND GND Ground 15 GND GND Ground 16 3V3 VDD Power supply connection 17 RES I Reset input (active high)
1418 PIO6 I/O Programmable I/O lines 19 PIO7 I/O Programmable I/O lines 20 PIO4 I/O Programmable I/O lines 21 NCSB I Chip selection for SPI (internal pull up, active low) 22 SCLK I/O SPI Clock (internal pull down) 23 MISO O SPI data output (pull down) 24 MOSI I SPI data input (pull down) 25 PIO5 I/O Programmable I/O lines 26 TXD O UART TX (internal pull up) 27 NC - NC, not used in WT11 module. 28 GND GND Ground Table 5: WT11 PIN configuration Notes: Voltage level of input (I), output (O) and input/output (I/O) pins is 3.3V.
155. FOOT PRINT Figure 4: WT11 foot print and dimension Figure 5: WT11 pad dimensions
166. ANTENNA KEEP OUT AREA Figure 6: PCB design around ACX antenna Figure four above illustrates how PCB design around the antenna of WT11 should be made. The most important thing is that there is no copper (ground plane or traces) underneath or in the close proximity of the ACX antenna. It’s also very important to have grounding vias all the way in the border between ground plane and free space, as illustrated with black and gray dots in figure 4. This prevents the RF signal for reflecting back to the PCB and signal lines over there. For more information, please refer to the WT11 design guide and design references.
177. WT11-A PHYSICAL DIMENSIONS Figure 7: WT11-A Dimensions
18Physical Interfaces 7.1 UART Interface WT11 Universal Asynchronous Receiver Transmitter (UART) interface provides a simple mechanism for communicating with other serial devices using the RS232 standard1. UART_TXUART_RXUART_RTSUART_CTSWT12 Figure 8: WT11 UART interface Four signals are used to implement the UART function, as shown in Figure 11.12. When WT11 is connected to another digital device, UART_RX and UART_TX transfer data between the two devices. The remaining two signals, UART_CTS and UART_RTS, can be used to implement RS232 hardware flow control where both are active low indicators. All UART connections are implemented using CMOS technology and have signaling levels of 0V and VDD_PADS. Figure 9: WRAP THOR VM Stack In figure above, the iWRAP software solution is described. In this version of the stack firmware shown no host processor is required to run the Bluetooth protocol stack. All software layers, including application software, run on the internal RISC processor in a protected user software execution environment known as a Virtual Machine (VM). The host processor interfaces to iWRAP software via one or more of the physical interfaces which are also shown in the figure above. The most common interfacing is done via UART interface using the ASCII commands supported by the iWRAP software. With these ASCII commands the user can access Bluetooth functionality without paying any attention to the complexity which lies in the Bluetooth protocol stack. The user may write applications code to run on the host processor to control iWRAP software with ASCII commands and to develop Bluetooth powered applications. Notes: More details of iWRAP software and it’s features can be found from iWRAP User Guide which can be downloaded from www.bluegiga.com.
19Federal Communications Commission (FCC) Statement 15.21 You are cautioned that changes or modifications not expressly approved by the part responsible for compliance could void the user’s authority to operate the equipment. 15.105(b) 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. -Consult the dealer or an experienced radio/TV technician for help. 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. FCC RF Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End users must follow the specific operating instructions for satisfying RF exposure compliance. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Note: The end product shall has the words “Contains Transmitter Module FCC ID: QOQWT11”
20Contact Information Sales: sales@bluegiga.com Technical support: support@bluegiga.com http://www.bluegiga.com/techforum/ Orders: orders@bluegiga.com Head Office / Finland Phone: +358-9-4355 060 Fax: +358-9-4355 0660 Street Address: Sinikalliontie 11 02630 ESPOO FINLAND Postal address: P.O. BOX 120 02631 ESPOO, FINLAND Sales Office / USA Phone: (781) 556-1039 Bluegiga Technologies, Inc. 99 Derby Street, Suite 200 Hingham, MA 02043

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