Bang and Olufsen a s CR870-2Q JukeBlox Networked Media User Manual dat CR860 CR870 3 6 datasheet
Bang & Olufsen a/s JukeBlox Networked Media dat CR860 CR870 3 6 datasheet
Contents
- 1. user manual
- 2. Revised user manual
user manual
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| Date Submitted | 2011-11-11 00:00:00 |
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Data Sheet: CR Series JukeBlox Networked Media Modules JukeBlox Networked Media Module CR Series Datasheet Complete audio networking system on a small module Integrated Ethernet + USB2.0 WiFi-certified 802.11b/g Built-in PIFA antenna Glueless audio, video and control ports FCC certified Ideal for enabling network and USB audio playback for iPod docks, audio systems, AV Receivers, active speaker systems, internet radios, network playback adaptors CONFIDENTIAL dat_CR860_CR870_3_6_datasheet.doc CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 1 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules Table of Contents 1. Introduction 2. Block Diagram 3. Board Pictures 3.1 Top View of CR870-2A 3.2 Bottom View of CR870 types 2A, 2D & 2S 3.3 Top View of CR870 types 2C, 2F, 2G, 2I, 2J, 2K & 2R 3.4 Bottom View of CR870 types 2C, 2G, 2I, 2J, 2K, 2L, 2N, 2O, 2P & 2R 3.5 Top View of CR870 types 2D, 2L, 2N, 2O, 2P, 2Q & 2S 4. Ordering Guide 5. Electrical Specifications 5.1 Absolute Maximum Ratings 5.2 Operating Conditions 10 5.3 WiFi Specification (CR870 only) 10 6. Regulatory Compliance and Quality 11 6.1 RoHS 12 6.2 Environmental Test 12 6.3 ESD and Transient Test (Applies to LAN and USB external connections only) 12 6.4 Magnetic Field Test 12 6.5 MTBF 12 6.6 Mechanical Specifications 12 dat_CR860_CR870_3_6_datasheet.doc CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 2 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules 6.7 Module Quality 12 7. Board Dimensions and Weight 13 7.1 Top View and Side View of CR870 modules with PIFA antenna & no shields 13 7.2 Bottom View of CR870 modules with no bottom shield 13 7.3 Top View and Side View of CR870 modules without PIFA antenna 14 7.4 Top View and Side View of CR870 modules with PIFA antenna & top shield 14 7.5 Module weight 15 8. Connectors and Connections 15 8.1 WLAN UFL Antenna Connector (optional) 15 8.1.1 Coaxial antenna connector dimensions 15 8.2 Module Connectors 15 9. Application Guidelines 21 9.1 Power Supply sequencing and Reset Timing 21 9.2 RF Considerations 22 10. Revision Control 23 Module Revision History 26 Trademarks 26 Warranty Limitations 26 8.2.1 Pin Descriptions 8.2.2 Connector PIN Assignments 16 20 9.1.1 Power up, Reset and Power Down Timing dat_CR860_CR870_3_6_datasheet.doc CONFIDENTIAL 22 Version 3.6 – August 4th 2011 - Page 3 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules 1. Introduction The CR-series module is a single-board networked media player module, based on BridgeCo’s DM860 and DM870 media processors, and enables fast product developments with Ethernet, USB and optional WiFi connectivity. The module connects to standard legacy components in various audio, video/LCD and control formats. 2. Block Diagram JukeBlox Networked Media Module – CR Series 3.3V JTAG DM860 or DM870 1.2V 24.000 MHz Reset In RST 100B-T RJ-45 USB USB (Host) Ethernet PHY 5V Display SD-Card LP HP out CCIR-656 A/D, D/A S/PDIF serial control shift register IC control IR sensor reset signals analog mute I2C bus Audio I/O 2 x UART SPI Ctrl. max. 20 GPIOs SSM Mem 256 Mbit SDRAM 802.11 802.11 RF amp (optional) DAC AV Ports PIFA Antenna Switcher 1.9V UART SPI GPIO 3.3V (RTC) RTC SuperCap dat_CR860_CR870_3_6_datasheet.doc 1 GB NAND flash LCD 4/8bit MMC Video Out NAND USB 3x6bit RGB Stereo Out RMII CONFIDENTIAL 32.768 kHz Version 3.6 – August 4th 2011 - Page 4 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules 3. Board Pictures 3.1 Top View of CR870-2A antenna connector SDRAM FLASH PIFA antenna 802.11b/g front-end BridgeCo processor Ethernet Note: Components and Socket to the right of the Ethernet and Flash sections are not installed in production modules. Please see Section 3.3 for example production module top view picture. 3.2 Bottom View of CR870 types 2A, 2D & 2S LCD connector +1.9V DC to DC converter Note: The connector shown to the left of the LCD connector is not installed on production modules. Please see section 3.4 for example production module bottom view picture. Media connector dat_CR860_CR870_3_6_datasheet.doc CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 5 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules 3.3 Top View of CR870 types 2C, 2F, 2G, 2I, 2J, 2K & 2R Version with no top shield. Please note that label text will change to show version, and versions 2I, 2J, 2K will have no Ethernet components mounted. 3.4 Bottom View of CR870 types 2C, 2G, 2I, 2J, 2K, 2L, 2N, 2O, 2P & 2R Versions with no bottom shield and no LCD connector. Please note that production version does not have exposed solder on the underside of the mounting holes. dat_CR860_CR870_3_6_datasheet.doc CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 6 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules 3.5 Top View of CR870 types 2D, 2L, 2N, 2O, 2P, 2Q & 2S Versions with top shield. For versions without PIFA antenna, PIFA antenna is not present and UFL connector is present, see the top view of CR870-2A for location of UFL connector. dat_CR860_CR870_3_6_datasheet.doc CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 7 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules 4. Ordering Guide WiFi Part Number Ethernet USB RealTime Clock LCD PIFA Antenna Ext. Antenna UFL Conn. SDRAM (X)* 32MB Top Module Shielding BridgeCo ICs Contains shield Incl. connector CR870-2A DM870+T6201 CR870-2C DM870+T6201 CR870-2D DM870+T6201 CR870-2F DM870+T6201 CR870-2G DM870+T6201 CR870-2I DM870+T6201 32MB 32MB (X)* 32MB 16MB 16MB CR870-2J DM870+T6201 CR870-2K DM870+T6201 CR870-2L DM870+T6201 CR870-2M DM870+T6201 CR870-2N DM870+T6201 CR870-2O DM870+T6201 CR870-2P DM870+T6201 CR870-2Q DM870+T6201 CR870-2R DM870+T6201 CR870-2S DM870+T6201 CR860-2A DM860 n/a CR860-2B DM860 n/a 32MB 16MB 32MB (X)* 32MB 16MB 16MB 32MB 32MB 16MB 32MB n/a n/a 32MB n/a n/a 32MB * Connector on board, but not enabled Note: Shaded rows are Custom or Obsolete configurations – not to be used for new / standard MP designs. dat_CR860_CR870_3_6_datasheet.doc CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 8 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules 5. Electrical Specifications Parameter Power Supply Voltage State Model Voltage Symbol typ. +3.3 +1.2 VIH VIL VIT min. +2.97 +1.08 1.7 -0.3 1.29 1.39 max. +3.63 +1.32 5.5 0.7 1.5 Units VIT+ 1.58 1.65 1.71 VIT- 0.95 1.01 1.06 VOH VOL 2.4 0.4 IOL -9.6 -15.6 -19.3 mA IOH 11.1 22.5 35.3 mA 230 45 165 45 35 145 45 1750 600 825 600 535 760 600 300 60 215 60 50 190 60 2275 800 1075 800 700 990 800 mW mW mW mW mW mW mW mW mW mW mW mW mW mW VIN Logic Input high voltage Logic Input low voltage Logic Input threshold voltage Schmitt-trigger input low to high threshold voltage Schmitt-trigger input high to low threshold voltage Logic Output high voltage Logic Output low voltage Logic Low-level output current (VOL=0.4V) Logic High-level output current (VOH=2.4V) Power Consumption Reset State CR870 int 1.9V CR870 ext 1.9V CR860 WLAN Operating CR870 int 1.9V CR870 ext 1.9V Operating CR860 3.3V 1.2V 3.3V 1.2V 1.9V 3.3V 1.2V 3.3V 1.2V 3.3V 1.2V 1.9V 3.3V 1.2V PIN3.3 PIN1.2 PIN3.3 PIN1.2 PIN1.9 PIN3.3 PIN1.2 PIN3.3 PIN1.2 PIN3.3 PIN1.2 PIN1.9 PIN3.3 PIN1.2 Note: The maximum power consumption values are 30% larger than the typical values. The maximum values are intended to be used for power supply sizing calculations. 5.1 Absolute Maximum Ratings Parameter 3.3V Supply Voltage 1.2V Supply Voltage Logic Input Voltage Logic Output Voltage Component Main dat_CR860_CR870_3_6_datasheet.doc Min -0.5 -0.5 -0.5 -0.5 Max 4.6 1.8 4.6 Units CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 9 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules 5.2 Operating Conditions Parameter Operating Temperature Operating Humidity Storage Temperature Storage Humidity Storage Temperature Cycle Test 24 hrs Min 10 -10 10 -10 Max +70 90 (non condensing) +75 95 (non condensing) +75 Units °C %RH °C %RH °C 5.3 WiFi Specification (CR870 only) Feature WLAN Standards Frequency Band Modulation Transmission Speed Tx Power Power-on Ramp RF Carrier Suppression TX EVM Rx Sensitivity (incl. CE2 Mother board) Throughput Rate (measured for each module) Description IEEE 802.11b IEEE 802.11g 2.412 – 2.472 GHz (2.4GHz ISM Band, 13 Channels) Channel 1 - Channel 13 North America, Japan Telec, Europe ETSI 802.11b mode (DS-SS: IEEE 802.11b) 802.11g mode (OFDM: IEEE 802.11g) 802.11b mode 11Mbps, 5.5Mbps, 1Mbps 802.11g mode 54Mbps, 48Mbps, 36Mbps, 24Mbps, 18Mbps, 12Mbps, 9Mbps, 6Mbps 802.11b mode (16.5dBm, +/-1dBm) 802.11g mode (21dBm, +/-1dBm) < 2us < 15dBc < -9dB @ 6Mbps < -25dB @ 54Mbps 802.11b mode =<-88dBm @ 1Mbps, =<-85dBm @ 5.5Mbps, =<-83dBm @ 11Mbps 802.11g mode =<-86dBm @ 6Mbps, =<-75dBm @ 36Mbps, =<-69dBm @ 54Mbps See factory test specification dat_CR860_CR870_3_6_datasheet.doc CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 10 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules 6. Regulatory Compliance and Quality Description Electromagnetic Compatibility (Prescan) Country USA Europe Radio Regulations (CR870 only) USA Japan Canada Europe New Zealand/Australia China Korea Compliance FCC CFR47 Part15B EN 55022 EN 55024 EN 61000-3-2 EN 61000-3-3 EN 61000-4-2 EN 61000-4-3 EN 61000-4-4 EN 61000-4-5 EN 61000-4-6 EN 61000-4-8 EN 61000-4-11 FCC Part 15C Telec IC RSS-210 CE CE SRRC KCC Module Versions Passed C, C, C, C, G, G, G, G, I, J, D J, D I, J, D Note: BridgeCo does not certify all module variants for all countries. Please contact your BridgeCo sales office for the latest information about which modules are certified for which countries, and arranging for additional certification for your chosen module if needed. Product manufacturers are responsible for the end product certification. Several products using CR870 series modules have passed the WiFi Alliance logo certification tests. BridgeCo can help manufacturers to prepare for the WiFi Alliance tests by providing an example test plan and the required commands to enable special test modes. Please contact your BridgeCo sales office about WiFi Alliance logo certification assistance. dat_CR860_CR870_3_6_datasheet.doc CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 11 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules 6.1 RoHS Uses only RoHS compliant components 6.2 Environmental Test Withstands 4 hours at 70°C, 90% RH 6.3 ESD and Transient Test (Applies to LAN and USB external connections only) ESD: +/- 2kV operation, +/- 4kV no destruction (part of CE test) Fast electrical transients: +/- 500V operation, +/- 1000V no destruction (part of CE test) 6.4 Magnetic Field Test Passes EN55022 and EN55024 (part of CE test) 6.5 MTBF >10000 hours 6.6 Mechanical Specifications Passes drop test according to I.E.C. 68-2-32, height 100 cm, 1 corner, 6 faces. Passes vibration test with sine, vertical, 60 minutes, 600 to 18000 cpm, 1G 6.7 Module Quality Defect Rate: 7 months <0.5% failures, 14 months <1% failures AQL CR=0, MA=0.4, MI=0.4 dat_CR860_CR870_3_6_datasheet.doc CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 12 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules 7. Board Dimensions and Weight Note: For mechanical details of versions CR870-2C Mfg200 and CR870-2Q, please see the appropriate addendum: dat_CR860_CR870_3_3_datasheet_addendum_2C_Mfg200a.pdf or dat_CR860_CR870_3_5_datasheet_addendum_2Q.pdf. These addendums are available upon request from BridgeCo. 7.1 Top View and Side View of CR870 modules with PIFA antenna & no shields Drawings shown: With PIFA antenna No top shield No bottom shield RF section shield is always present in CR870 modules. 7.2 Bottom View of CR870 modules with no bottom shield Drawing shown: Note: 1. 2. 3. 4. 5. 6. 7. 8. dat_CR860_CR870_3_6_datasheet.doc CONFIDENTIAL With connector locations No bottom shield All dimensions are measured in millimetres (mm). PCB’s thickness: 1.00 +/- 0.10mm Tolerance: +/-0.10mm Outline Tolerance: +/-0.10mm NPTH Hole: +/-0.05mm PTH Hole: +/-0.075mm Connector positions, board dimensions, mounting hole positions and sizes are the same for all module variants. Connector position tolerance: +/- 0.38mm Version 3.6 – August 4th 2011 - Page 13 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules 7.3 Top View and Side View of CR870 modules without PIFA antenna Drawings shown: Without PIFA antenna No top shield No bottom shield RF section shield is always present in CR870 modules. 7.4 Top View and Side View of CR870 modules with PIFA antenna & top shield Drawings shown: With PIFA Antenna With top shield For versions without PIFA antenna, ignore PIFA antenna shown on the drawings in this section. RF section top shield is always present in CR870 modules. dat_CR860_CR870_3_6_datasheet.doc CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 14 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules 7.5 Module weight CR860: 25g CR870: 25g Note: Module weight applies to all versions of the module. 8. Connectors and Connections 8.1 WLAN UFL Antenna Connector (optional) One coaxial antenna connector is provided as an alternative to the built-in PIFA antenna. The choice between using the PIFA antenna or using the coaxial socket is a build option, determined by the position of a surface mount capacitor on the module PCB. Please see ordering guide for build option details. The surface-mount receptacle parts: Hirose U.FL-R-SMT (CL No. 331-0471-0) 8.1.1 Coaxial antenna connector dimensions 8.2 Module Connectors The CR860/870 module uses 3 female board-to-board connectors as interfaces to the product main board. The connectors needed on the product main board are male type, with the part numbers as shown in the table below. Connector Number Connector Purpose J1 J2 LCD Media Connector Type dat_CR860_CR870_3_6_datasheet.doc B2B Connector Number of Pins Pin Configuration Male Mating Connector Part Numbers 30 120 2 x 15 x 0.5mm 2 x 60 x 0.5mm 14-5046-030-145-829+ (Kyocera) 14-5046-120-145-829+ (Kyocera) CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 15 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules 8.2.1 Pin Descriptions Signal(s) Type Description POWER VIN(+3.3V) VIN (+1.2V) VIN_OUTSIDE(+1.9V) 3V3RTC GND Power supply input ; +3.3V. Power supply input ; +1.2V. +1.9V for powering RF section. This voltage is generated internally on the module from the 3.3V supply for all current module versions. Leave these pins open. For module versions without Real Time Clock (RTC) option, and for module versions with RTC option where the RTC function is not used, this pin should be left open. For module versions with RTC option, and the RTC function is used, then this pin should be connected to the positive terminal of a 1F capacitor connected to GND. This capacitor will power the RTC circuits in the DM870 IC when the module power supply is switched off. Ground (GND) connection for power supply 0V, signal returns and shielding. SPI SPI_DOUT SPI_DIN SPI_CLK SPI_NCS0 PDOUT1 SPI_NCS1 UART RXD1 TXD1 RXD0 TXD0 dat_CR860_CR870_3_6_datasheet.doc SPI data from DM870 to host controller. SPI data from host controller to DM870. SPI clock from host controller to DM870. Maximum recommended frequency is 2MHz, typical frequency is 1MHz. See Note 2 below. SPI chip select from host controller to DM870. This signal is used as SPI_REQ, SPI request signal, from DM870 to host controller for eDMP applications. Logic 1 indicates that there is an SPI message waiting to be read, the host controller should start the SPI clock and read any changed registers. Logic 0 indicates that all changed register messages have been read and the message buffer is empty. Also GPIO-06. Not used. Leave open. UART1 input to the DM870, used for shell access. BridgeCo recommends providing a connection to an external RS-232 transceiver and DB9 connector to connect to a PC COM port. Such a connection can be used for product development debugging, and for module programming control on the product manufacturing line and for module control during certification procedures. UART1 output from the DM870, used for shell access. BridgeCo recommends providing a connection to an external RS-232 transceiver and DB9 connector to connect to a PC COM port. Such a connection can be used for product development debugging, and for module programming control on the product manufacturing line and for module control during certification procedures. UART0 input. Optionally used for controlling an iPod via UART. UART0 output. Optionally used for controlling an iPod via UART. CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 16 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules AUDIO AV2DATA0 AV2CTRL0 AV2CTRL1 AV2CLK AV4DATA1 AV4DATA0 AV2DATA1 AOUTLP/AOUTLN, AOUTRP/AOUTRN AV2DATA2 AV2DATA3 CONTROL NCS3 PDOUT0 VCO0 AV3CLK AV3CTRL0, AV3CTRL1 I/O NRESET_MOD NPD_RF ETHERNET ETH_RX-, ETH_RX+, ETH_CT, ETH_TX+, ETH_TXETH_LED_SPEED, ETH_LED_ACT I2S or left justified audio data output. Typically connected to external D/A converter input or to external DSP for further audio processing. Used for main left and right channel audio output data. See Note 3. LRCK, audio data word clock at the audio sample rate (Fs). Maximum currently supported frequency is 192kHz. MCLK, audio master clock at 256Fs. This can be used to clock an external D/A converter or DSP. SCLK, audio data bit clock at 64Fs. Allows for up to 32 audio data bits per sample word. SPDIF format output. Can support samples rates up to 192kHz, so the maximum instantaneous frequency on this pin is 24.576MHz. SPDIF input. Not used at present. Leave open. I2S or left justified audio data output. Not used at present. Leave open. Differential stereo output from PWM-DAC, right and left channels. These signals require analog low pass filtering. BridgeCo is not recommending using the PWM-DAC outputs because of the potential for high out-of-band noise and uncharacterized audio quality. BridgeCo recommends using an external D/A converter connected to AV2DATA0. I2S or left justified audio data input. Can be driven from an optional external A/D converter used to interface to iPod analog output or other analog audio sources. If not used, leave open. I2S or left justified audio data input. Not used at present. Leave open. BIST activate. Low-active input to invoke the Built In Self Test (BIST) function. This only applies to factory fresh modules. After JB2 firmware is loaded, this signal becomes GPIO-17 and is currently not used. DM870-internal pull-up. Leave this pin open. Factory Reset. GPIO-04. Return the CnE to factory settings. High-active input, DM870internal pull-down. Pull to GND with a 10kohm resistor, unless return to factory settings from a hardware control is needed. Normally, return to factory settings is controlled from the host controller via SPI register. This pin is only monitored during the boot up process. Infrared sensor input. GPIO-05. This is a Schmitt-Trigger input and can handle inputs with slow slopes. Used for aDMP firmware builds for infrared remote control sensor output connection to DM870. For applications with a host controller, pull this pin to +3.3V via a 10kohm resistor. ETH_NRESET Low-active reset for the on-board ethernet PHY. This output is driven by the DM870. GPIO-12. Leave this pin open. I2C_SCL, I2C_SDA bus created by GPIO-13 and GPIO-14. No internal pull-ups; Use 4.7kohm pull up resistor on each pin to +3.3V. Maximum frequency is 400kHz. Low-active input to reset the module. This signal must be driven by an external reset generator, or by a GPIO output from a host controller. See the application section of this data sheet for the timing requirements for NRESET_MOD. Includes internal 10K pull-up resistor to +3.3V. Active low input to shut down the power for the 802.11 RF section. Internal 10kohm pull-up resistor to +3.3V. Leave open if powering down the RF section is not required. Ethernet signals between the magnetics (transformer) on the module and the external RJ45 connector. See Note 4. Maximum bit rate is 100Mbps. 3.3V push-pull outputs (max. ±12mA) to drive the ethernet LEDs. 100Mbps speed mode and activity are indicated by the outputs being low. Connect to LEDs through 220ohm resistors. dat_CR860_CR870_3_6_datasheet.doc CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 17 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules USB USB_DN, USB_DP USB_VBUS USBVBUSDRV JTAG TMS,TCK,TDI, TDO I/O JTAG port for DM870. Leave open. I/O Can be used to drive external shift registers to make extended GPIO signals (see Note 6), or as individual GPIO signals, or to make an SD card interface. SD card firmware is not supported at present in JB2. Can be mapped to GPIO #s 08,09,10,11. Leave open if not used. Used to make an SD card interface. SD card firmware is not supported at present in JB2. Leave open. SSM SSMD4, SSMD5, SSMD6, SSMD7 SSMD0, SSMD1, SSMD2, SSMD3, SSMCLK, SSMCP, SSMCMD, SSMWP VIDEO AV0CLK, AV0CTRL0, AV0CTRL1, AV0CTRL2, AV0DATA0, AV0DATA1, AV0DATA2, AV0DATA3, AV1DATA0, AV1DATA1, AV1DATA2, AV1DATA3 I/O USB data signals, normally connected to type A connector, USB switch or iPod dock connector. Maximum bit rate is USB High Speed at 480Mbps. Analog input for monitoring USB type A connector power. Connect to the +5V power which is driving the USB type A connector power pins. If this pin drops below 4.6V, then the DM870 will drive the USBVBUSDRV signal low to control an external power MOSFET to disconnect +5V power from the USB type A connector. See Note 5. Logic output to control an external MOSFET that is in series with USB type A connector power. See USB_VBUS above and Note 5. ITU-R BT.656 digital video output signals. Optionally used to make a TVout menu display, or to display decoded album art. Can be connected to video D/A converter (see Note 7), or connected to a video DSP. A22 A23 NWAIT NCS2 VCO1 MMIICRS MIICOL MIITXER MIITXCLK I/O I/O I/O I/O I/O I/O GPIO18 Reserved for NOR flash address A22. Leave open. GPIO-16 Reserved for NOR flash address A23. Leave open. GPIO-15 Not currently assigned. Leave open. GPIO-19 Assigned to iPod dock connector iPod NDETECT. See Note 8. GPIO-07 Not currently assigned. Leave open. GPIO-00 Not currently assigned. Leave open. GPIO-01 Not currently assigned. Leave open. GPIO-02 Not currently assigned. Leave open. GPIO-03 iPod dock connector Accessory Power signal. See Note 8. MII MIITXD0, MIITXD1, MIIRXD0, MIIRXD1 I/O Can be used, with GPIO signals above, to drive an external ethernet PHY. This is not supported by JB2 firmware. Leave open. Uses optional J1 LCD connector. Connect to local LCD display. See Note 9. Leave open if not used. GPIO (not already mentioned elsewhere in this table) LCD LCDD0, LCDD1, LCDD2, LCDD3, LCDD4, LCDD5, LCDD6, LCDD7, LCDD8, LCDD9, LCDD10, LCDD11, LCDD12, LCDD13, LCDD14, LCDD15, LCD16, LCDD17, LCDCLK, LCDCTRL0, LCDCTRL1, LCDCTRL2, LCDCTRL3 dat_CR860_CR870_3_6_datasheet.doc CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 18 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules Notes: 1. Signal type codes: I – 3.3V level Digital Logic Input into the DM870 O – 3.3V level Digital Logic Output from the DM870 IO – 3.3V level Digital Logic Input and Output (bi-directional) signal M – Miscellaneous, see text for description P – Power Supply 2. For SPI timing diagram for eDMP applications, please see: BridgeCo_JB2x - DeviceControlProtocol_Registers_v_2_1.pdf, or later version. For detailed setup and hold timing details, see DM870 IC data sheet: dat_DM870_16_datasheet.pdf, or later version. 3. For audio port timing diagrams, and for detailed setup and hold timing, please see DM870 IC data sheet: dat_DM870_16_datasheet.pdf, or later version. 4. For example ethernet external schematic, see: CR Module Ethernet_V1.0.pdf, or later version. 5. For example USB schematics, see: CR Module USB_V1.0.pdf, or later version. 6. For example use of extended GPIO shift registers, see CE2 schematic: A EVMCE2-4_schematic.pdf, or later version. 7. For example connection to a video D/A converter, see CE2 schematic: A EVMCE2-4_schematic.pdf, or later version. 8. iPod dock connector pin and GPIO assignments are under discussion. Please contact BridgeCo for recommendations for iPod dock connections to CR870 module. 9. For example connection to an LCD display, see CE2 schematic: A EVMCE2-4_schematic.pdf, or later version. 10. BridgeCo has a set of example motherboard schematics that shows example external circuitry that is typically connected to the module. Please check the BridgeCo customer portal for a copy of these example schematics. 11. Please check the BridgeCo Customer Portal DOWNLOAD area for the latest version of BridgeCo documents. Go to bridgeco.com, click on Client Login button. If you do not have an account, please contact BridgeCo. dat_CR860_CR870_3_6_datasheet.doc CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 19 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules 8.2.2 Connector PIN Assignments J2 – Media Connector Function GPIO IC PIN Signal F4 SPI Debug UART SPI_E_NCS SPI_E_SDI GPIO-11 GPIO-09 E17 F17 D17 C17 A18 B17 A17 C16 A16 B15 B14 C13 C12 A1 B1 USB H3 J3 GPIO-16 GPIO-18 GPIO-14 GPIO-13 I2C SDA I2C SCL Video Output LRCK A/D data 1 A/D data 0 D/A data 1 D/A data 0 K20 K19 V1 V2 K3 L3 N1 N2 N3 P1 P2 T2 T3 T4 U1 U2 Ethernet Free GPIO-15 N18 GND VIN (+3.3V) VIN (+3.3V) GND VIN (+1.2V) VIN (+1.2V) GND VIN_OUTSIDE (+1.9V) GND 3V3RTC GND GND SPI_DOUT SPI_DIN SPI_CLK TXD0 RXD0 RXD1 TXD1 GND SSMD7 SSMD5 SSMD3 SSMD0 SSMCLK SSMCP GND USB_DN USB_DP USBVBUSDRV GND AOUTLP AOUTLN GND A23 A22 AV3CTRL1 AV3CTRL0 AV0CTRL2 AV0CTRL1 AV0CLK AV0DATA3 AV0DATA2 AV0DATA1 AV0DATA0 GND AV2CTRL0 AV2DATA3 AV2DATA2 AV2DATA1 AV2DATA0 GND ETH_RXETH_RX+ ETH_CT ETH_TXETH_TX+ GND NWAIT NPD_RF PIN Number Signal 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87 89 91 93 95 97 99 101 103 105 107 109 111 113 115 117 119 GND VIN (+3.3V) VIN (+3.3V) GND VIN (+1.2V) VIN (+1.2V) GND VIN_OUTSIDE (+1.9V) GND GND TMS TCK TDI TDO SPI_NCS0 SPI_NCS1 NRESET_MOD SSMD6 SSMD4 SSMD2 SSMD1 SSMCMD SSMWP NCS3 NCS2 GND USB_VBUS GND AOUTRN AOUTRP GND PDOUT1 VCO1 PDOUT0 VCO0 AV3CLK AV0CTRL0 AV1DATA3 AV1DATA2 AV1DATA1 AV1DATA0 GND AV2CTRL1 GND AV2CLK GND AV4DATA1 AV4DATA0 GND ETH_LED_ACT ETH_LED_SPEED MIICRS MIICOL MIITXER MIITXCLK MIITXD0 MIITXD1 MIIRXD0 MIIRXD1 GND 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 IC PIN GPIO B20 A20 B19 A19 D16 D15 B16 C15 A15 C14 A14 C11 M18 L18 Function JTAG SPI GPIO-10 GPIO-08 Module reset input SPI_E_CLK SPI_E_SDO GPIO-17 GPIO-19 BIST activate iPod NDETECT USB K2 J2 L1 L2 M1 M2 U3 M3 P3 R1 R2 R3 GPIO-06 GPIO-07 GPIO-04 GPIO-05 GPIO-12 SPI_REQ Factory reset IR input ETH NRESET Video Output T1 MCLK R4 SCLK W2 Y1 SPDIF output SPDIF input Ethernet Y14 W14 V10 V11 W10 Y10 W12 Y12 GPIO-00 GPIO-01 GPIO-02 GPIO-03 iPod Access Power Note: The IC PIN column indicates the pin number on the DM860 or DM870 integrated circuit. This allows for easy cross-reference to the DM860 or DM870 data sheet information. dat_CR860_CR870_3_6_datasheet.doc CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 20 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules J1 – LCD Connector Function GPIO IC PIN Signal LCD Interface Y7 V7 W6 U6 W5 U5 W4 U4 W3 LCD Interface Y9 Y8 V8 GND LCDD0 LCDD2 LCDD4 LCDD6 LCDD8 LCDD10 LCDD12 LCDD14 LCDD16 GND LCDCLK LCDCTRL1 LCDCTRL3 GND PIN Number 11 13 15 17 19 21 23 25 27 29 10 12 14 16 18 20 22 24 26 28 30 Signal GND LCDD1 LCDD3 LCDD5 LCDD7 LCDD9 LCDD11 LCDD13 LCDD15 LCDD17 GND LCDCTRL0 LCDCTRL2 GND GND IC PIN GPIO Function W7 Y6 V6 Y5 V5 Y4 V4 Y3 Y2 LCD Interface W9 W8 LCD Interface Note: The IC PIN column indicates the pin number on the DM860 or DM870 integrated circuit. This allows for easy cross-reference to the DM860 or DM870 data sheet information. 9. Application Guidelines 9.1 Power Supply sequencing and Reset Timing There are strict power sequencing and reset timing requirements. Power up the I/O voltage (3.3V) first and hold NRESET_MOD low. The core voltage (1.2V) must never be higher than (I/O voltage +0.5 V). The core voltage (1.2V) must be within the specified core voltage limits less than 300ms after the I/O voltage (3.3V) reaches the specified I/O voltage limits. Throughout the power down process, the 3.3V supply must maintain a higher voltage than the 1.2V supply, until both have reached ground potential. To assure a proper IC reset, the power supplies must be present for a minimum time of 2ms before NRESET_MOD is de-asserted. Please see the power and reset timing figure in Section 9.1.1 below. dat_CR860_CR870_3_6_datasheet.doc CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 21 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules 9.1.1 Power up, Reset and Power Down Timing Voltage Power Up Power Down +3.3V +1.2V 0V < 300ms NRESET_MOD >= 2ms Time 9.2 RF Considerations Note that overall system, RF and WiFi performance is significantly affected by the product design, environment and the application. It is the responsibility of the product designer to ensure proper system level shielding (if required) and to verify performance and fitness for the given product features and applications. The WiFi performance will be affected by the RF environment surrounding the CR module. Please ensure that the CR module is positioned in a “quiet” RF environment, as far away as possible from high frequency clock signals and any other sources of RF energy. Also, make sure the antenna is not shielded by any metal objects, for example loudspeakers or other metal parts. Please make sure that the power supplies, in particular the +1.9V supply, are quiet and free from noise. BridgeCo recommends that systems implementing AirPlay should use a module configuration that includes top module shielding, as well as paying particular attention to system configuration and shielding. dat_CR860_CR870_3_6_datasheet.doc CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 22 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules 10. Revision Control Revision Date / Author V3.6 August 4, 2011 / SHs Remarks V3.5 b May 15, 2011 / SHs Added CR870-2S row to Section 4 Ordering Guide Updated Section 3.5 title to include 2S Updated Section 3.2 title to include 2D & 2S Removed “(Optional)” from WiFi-certified 802.11b/g entry on title page Updated TX EVM in Section 5.3 WiFi Specification from “< -5dB @ 6Mbps” to “< -9dB @ 6Mbps” Updated the Feature list on Cover page Updated J1 & J2 “Connector PIN Assignments” tables: removed Power column & re-organised columns + added Notes Changed “Application Notes” title to “Application Guidelines” Updated Copyright date to “2011” Updated Table of Contents font styling Updated “Electrical Specifications” table: new logic I/O values Updated Top View of CR870-2A Board Picture: removed “Optional socket” label + added a Note Updated Bottom View of CR870-2A Board Picture: added a Note + labelled “+1.9V DC to DC converter” Added Note 11 to the “Pin Descriptions” section Updated “Regulatory Compliance and Quality” table: updated the Module Versions Passed for Radio Regulations Removed text before “Pin Descriptions” table V3.5 a May 6, 2011 / SHs Updated “Power up, Reset & Power down Timing” figure V3.5 May 5, 2011 / SHs Added note to Module Weight section Updated the Ordering Guide – added new Q & R versions & shaded version K Updated appropriate Board Picture section titles with new versions Added note to “Board Dimensions and Weight” section Updated text in the “Power Supply sequencing and Reset Timing” section Added new Power Supply & Timing figure Updated the Key Connections table Updated “Key Connections” section title to “Pin Descriptions” Updated “Detailed Connector PIN Descriptions” section title to “Connector PIN Assignments” Updated J2 Media Connector table Re-imported Block Diagram as a wmf file V3.4 b March 3, 2011 / SHs Updated J2 Media Connector table Updated Block Diagram V3.4 February 5, 2011 / SHs Updated “Ordering Guide” – added CR870-2P configuration, CR870-2M to 32MB SDRAM Updated Board Pictures subsection titles – 3.4 & 3.5 V3.3 c January 24, 2011 / SHs V3.3 b January 22, 2011 / SHs dat_CR860_CR870_3_6_datasheet.doc Updated “Board Pictures” subsection titles & notes – removing mention of Mfg code Updated “Ordering Guide” – removed Mfg column, fixed Top Shielding column Updated “Board Pictures” subsection titles Added text to “Board Pictures” subsections CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 23 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules V3.3 January 14, 2011 / SHs V3.2 b January 11, 2011 / SHs Updated “Board Dimensions and Weight” subsection titles Added text to “Board Dimensions and Weight” subsections Removed all references to “DAB” as this option is no longer available Updated Block Diagram by removing DAB block and moving USB switch Updated Application Notes – RF Considerations section Updated the Ordering Guide table with L, M, N, O configurations and new explanatory shading Updated “Board Pictures” section sub-section titles Updated “Top View of CR870-2F Mfg 100, CR870-2G Mfg 101, CR870-2I Mfg 100, CR870-2J Mfg 100, CR870-2K Mfg 100” section board image Removed “Bottom View of CR870-2C Mfg 200” section and associated image Updated Ordering Guide – removed CR870-2C Mfg 200 row and Bottom Module Shielding column Updated “Board Dimensions and Weight” section sub-section titles Removed section 7.4.2 – “Bottom View” and associated image Updated Side View drawing in “Top View and Side View of CR870 modules with top shields, with PIFA antenna” section Updated Application Notes section with new subsections – “Power Supply sequencing and Reset Timing” & “RF Considerations” Updated subsection titles for Board Pictures section Updated subsection titles for Board Dimensions and Weight section Updated Ordering Guide with CR870-2K options V3.2 January 3, 2011 / SHs Updated the Ordering Guide V3.1 December 3, 2010 / SHs Added Top and Bottom View images of new CR870-2C Mfg 200 Added mechanical drawings of new CR870-2C Mfg 200 Updated the Ordering Guide with CR870-2C Mfg 200 information V3.0 August 13, 2010 / SHs Added Page Numbers to pages 1-3 Moved “Module Revision History” section to underneath “Revision Control” table Removed © from Table of Contents Added a Note to Section 3.3 – Top View of CR870-2G Amended Section 3.4 title to include more versions – Bottom View Updated Section 7.1 title to say “with PIFA Antenna” Updated Section 7.3 title to say “without PIFA Antenna” Updated “Regulatory Compliance” table Added Note underneath “Regulatory Compliance” table V3.0 July 22, 2010 / SHs Add mechanical tolerances note to “Board Dimensions and Weight “ section Updated Key Connections table with audio outputs data Added section numbering Added Table of Contents V2.15 July 4, 2010 / SHs Updated “Ordering Guide” table V2.14 June 10, 2010 / SHs Updated Frequency Band entry in “WiFi Specification” table V2.13 June 6, 2010 / SHs Updated “Ordering Guide” table V2.12 May 27, 2010 / SHs Updated TX EVM entry in “WiFi Specifications” table dat_CR860_CR870_3_6_datasheet.doc CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 24 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules Updated Power Consumption entries in “Electrical Specifications” table Added Note to “Electrical Specifications” table Removed box from “Bottom View of CR870-2C version” photo Updated “Bottom View of CR870-2C version” title to “Bottom View of CR870-2B, CR870-2C, CR870-2G versions” Added “Top View of CR870-2G version” photo Updated “Top View” title to “Top View of CR870-2A version” Updated “Bottom View” to “Bottom View of CR870-2A version” Updated Notes in Board Dimensions section Added “Top and Side View of CR870-2G” drawings Updated Module Weight titles V2.11 April 25, 2010 / SHs Updated Power Consumption/WLAN Operating entry in “Electrical Specifications” table V2.10 April 10, 2010 / SHs Corrected “Module Connectors” section text to say “female board-to-board connectors” Updated Module Connectors table with correct “Male” Mating Connector Part Numbers V2.9 March 22, 2010 / SHs Renamed “WLAN Antenna Connectors” section to “WLAN UFL Antenna Connector” In the “WLAN Antenna Connectors” table, “receptible” became “receptacle” CR870-2G option and External Antenna UFL connector column added to Ordering Guide Power Consumption values added to Electrical Specifications table Added Absolute Maximum Ratings table Added Application Notes section NREST became NRESET_MOD for Pin 34 in Key Connections table SPI_REQ row added to Key Connections table SPI_REQ added to Function column of Pin 64 in J2-Media Connector table V2.8 Feb. 24, 2010 / SHs Added “Bottom View of CR870-2C version” image to “Overview” section V2.7 Feb. 16, 2010 / SHs Updated “Module Connectors” table V2.6 Feb. 15, 2010 / SHs Updated “Ordering Guide” table V2.5 Feb. 10, 2010 / SHs Updated “Ordering Guide” table Added new coaxial text in “WLAN Antenna Connectors” section Added manufacturer name to “Module Connectors” table V2.4 Feb. 08, 2010 / SHs Updated Rx Sensitivity description in “WiFi Specification” table V2.3 Feb. 03, 2010 / SHs “Key Connectors” table title changed to “Key Connections” Updated entries in “Key Connections” table Updated pins 1, 2, 25, 27, 58 & 60 in “J2 – Media Connector” table V2.2 Feb. 02, 2010 / SHs Added new items to “WiFi Specification” table Amended Block Diagram to show input of 1.2V instead of 1.8V V2.1 Jan. 04, 2010 / SHs Updated header layout Removed “CR860/CR870” from data sheet title Left justified Key Features list on front page New Ordering Guide table Updated Module Weights dat_CR860_CR870_3_6_datasheet.doc CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 25 of 26 Data Sheet: CR Series JukeBlox Networked Media Modules V2.0 Jan. 02, 2010 / JWs and SHs New header and footer layout Fit front and back Overview images onto one page Bulletise Revision Control table V1.1 Dec. 18, 2009 / SHs Changed Core Module name to “JukeBlox Networked Media Module(CR Series)” Front page revisions: removed front and back images of board; inserted angled image of board; moved Key Features list to front page Moved Disclaimers page to end of document Replaced previous board images (front and back) in Overview section with better quality images Added box and label to BridgeCo processor in Overview images Revised Ordering Guide Reduced Board Dimension drawings to fit on one page Added mating connector part numbers to Module Connectors section. V1.0 Dec. 9, 2009 / SHs Initial version Module Revision History To be determined. © 2011 by BridgeCo Inc All rights reserved. This document is the sole property of BridgeCo. It contains information proprietary to BridgeCo. Reproduction or duplication by any means of any portion of this document without the prior written consent of BridgeCo is expressly forbidden. Trademarks The names of products of BridgeCo or other vendors and suppliers appearing in this document may be trademarks or service marks of their respective owners which may be registered in some jurisdictions. Warranty Limitations BridgeCo assumes no responsibility for inaccuracies, errors, or omissions in this document. BridgeCo assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without notice. dat_CR860_CR870_3_6_datasheet.doc CONFIDENTIAL Version 3.6 – August 4th 2011 - Page 26 of 26 Class B: FEDERAL COMMUNICATIONS COMMISSION INTERFERENCE STATEMENT 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. CAUTION: Any changes or modifications not expressly approved by the grantee of this device could void the user's authority to operate the equipment. Labeling requirements This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Information for the OEMs and Integrators The following statement must be included with all versions of this document supplied to an OEM or integrator, but should not be distributed to the end user. This device is intended for OEM integrators only. Please See the full Grant of Equipment document for other restrictions. This device must be operated and used with a locally approved access point. Information To Be Supplied to the End User by the OEM or Integrator The following regulatory and safety notices must be published in documentation supplied to the end user of the product or system incorporating an adapter in compliance with local regulations. Host system must be labeled with "Contains FCCID:TTUCR870-2Q“, FCC ID displayed on label. RF exposure warning This equipment must be installed and operated in accordance with provided instructions and the antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. End-users and installers must be provide with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance. Canada, Industry Canada (IC) Notices This Class B digital apparatus complies with Canadian ICES-003 and RSS-210. 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. Radio Frequency (RF) Exposure Information The radiated output power of the Wireless Device is below the Industry Canada (IC) radio frequency exposure limits. The Wireless Device should be used in such a manner such that the potential for human contact during normal operation is minimized. This device has also been evaluated and shown compliant with the IC RF Exposure limits under mobile exposure conditions. (antennas are greater than 20cm from a person's body). This device has been certified for use in Canada. Status of the listing in the Industry Canada’s REL (Radio Equipment List) can be found at the following web address: http://www.ic.gc.ca/app/sitt/reltel/srch/nwRdSrch.do?lang=eng Additional Canadian information on RF exposure also can be found at the following web address: http://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf08792.html Canada, avis d'Industry Canada (IC) Cet appareil numérique de classe B est conforme aux normes canadiennes ICES-003 et RSS-210. Son fonctionnement est soumis aux deux conditions suivantes : (1) cet appareil ne doit pas causer d'interférence et (2) cet appareil doit accepter toute interférence, notamment les interférences qui peuvent affecter son fonctionnement. Informations concernant l'exposition aux fréquences radio (RF) La puissance de sortie émise par l’appareil de sans fil est inférieure à la limite d'exposition aux fréquences radio d'Industry Canada (IC). Utilisez l’appareil de sans fil de façon à minimiser les contacts humains lors du fonctionnement normal. Ce périphérique a également été évalué et démontré conforme aux limites d'exposition aux RF d'IC dans des conditions d'exposition à des appareils mobiles (les antennes se situent à moins de 20 cm du corps d'une personne). Ce périphérique est homologué pour l'utilisation au Canada. Pour consulter l'entrée correspondant à l’appareil dans la liste d'équipement radio (REL - Radio Equipment List) d'Industry Canada rendez-vous sur: http://www.ic.gc.ca/app/sitt/reltel/srch/nwRdSrch.do?lang=eng Pour des informations supplémentaires concernant l'exposition aux RF au Canada rendez-vous sur : http://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf08792.html Modular with multiple Antennas This radio transmitter IC: 3775B-CR870-2Q has been approved by Industry Canada to operate with the antenna types listed below with the maximum permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device. Antenna List No Manufacturer Part No. Antenna Type Peak Gain NISSEI 544116 Inverted-F 1.92 dBi for 2.4 GHz Note: The antenna connector is I-pex type. Modular information form OEM Information to Be Supplied to the End User by the OEM or Integrator The following regulatory and safety notices must be published in documentation supplied to the end user of the product or system incorporating an adapter in compliance with local regulations. Host system must be labeled with "Contains IC: 3775B-CR870-2Q “
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