LITE ON TECHNOLOGY CR8702N Users manual

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 (optional)
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_5_datasheet_b.doc CONFIDENTIAL Version 3.5 – May 15th 2011 - Page 1 of 26

Data Sheet: CR Series

JukeBlox Networked Media Modules

Table of Contents

1. Introduction 4

2. Block Diagram 4

3. Board Pictures 5

3.1 Top View of CR870-2A 5

3.2 Bottom View of CR870-2A 5

3.3 Top View of CR870 types 2C, 2F, 2G, 2I, 2J, 2K & 2R 6

3.4 Bottom View of CR870 types 2C, 2G, 2I, 2J, 2K, 2L, 2N, 2O, 2P & 2R 6

3.5 Top View of CR870 types 2D, 2L, 2N, 2O, 2P & 2Q 7

4. Ordering Guide 8

5. Electrical Specifications 9

5.1 Absolute Maximum Ratings 9

5.2 Operating Conditions 10

5.3 WiFi Specification (CR870 only) 10

6. Regulatory Compliance and Quality 11

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

6.7 Module Quality 12

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Data Sheet: CR Series

JukeBlox Networked Media Modules

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

8.2.1 Pin Descriptions 16

8.2.2 Connector PIN Assignments 20



9. Application Guidelines 21

9.1 Power Supply sequencing and Reset Timing 21

9.1.1 Power up, Reset and Power Down Timing 22

9.2 RF Considerations 22

10. Revision Control 23

Module Revision History 26
Trademarks 26
Warranty Limitations 26

dat_CR860_CR870_3_5_datasheet_b.doc CONFIDENTIAL Version 3.5 – May 15th 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 componen ts in various audio,
video/LCD and control formats.

2. Block Diagram

JukeBlox Networked Media Module – CR Series

3.3V

1.2V

Reset In

DM860

or

DM870

RST

JTAG

24.000 MHz

100B-T

USB

HP out

RJ-45

USB

(Host)

SD-Card

CCIR-656

A/D, D/A

serial control

shift register

IC control

IR sensor
reset signals
analog mute

SuperCap

Display

S/PDIF

2

I

C bus

LP

max. 20 GPIOs

5V

3x6bit RGB

4/8bit MMC

Stereo Out

Video Out

Audio I/O

2 x UART

SPI Ctrl.

3.3V (RTC)

Ethernet

2

PHY

RMII

USB
LCD

SSM
DAC

AV

Ports

UART

SPI

GPIO

RTC

NAND

Mem

802.11

1 GB

NAND flash

256 Mbit

SDRAM

802.11

RF amp

(optional)

Switcher

1.9V

32.768 kHz

PIFA

Antenna

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3. Board Pictures

p

3.1 Top View of CR870-2A

PIFA

antenna

802.11b/g
front-end

antenna

connector

SDRAM

BridgeCo

rocessor

Data Sheet: CR Series

JukeBlox Networked Media Modules

FLASH

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 CR870-2A

LCD

connector

+1.9V DC to DC

converter

dat_CR860_CR870_3_5_datasheet_b.doc CONFIDENTIAL Version 3.5 – May 15th 2011 - Page 5 of 26

Media

connector

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.

JukeBlox Networked Media Modules

3.3 Top View of CR870 types 2C, 2F, 2G, 2I, 2J, 2K & 2R

Data Sheet: CR Series

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

dat_CR860_CR870_3_5_datasheet_b.doc CONFIDENTIAL Version 3.5 – May 15th 2011 - Page 6 of 26

on the underside of the
mounting holes.

JukeBlox Networked Media Modules

3.5 Top View of CR870 types 2D, 2L, 2N, 2O, 2P & 2Q

Data Sheet: CR Series

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.

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4. Ordering Guide

Data Sheet: CR Series

JukeBlox Networked Media Modules

Part

Number BridgeCo ICs

CR870-2A DM870+T6201 X X X X X X (X)* 32MB
CR870-2C DM870+T6201 X X X X 32MB
CR870-2D DM870+T6201 X X X X X 32MB X
CR870-2F DM870+T6201 X X X X X X (X)* 32MB
CR870-2G DM870+T6201 X X X X 32MB
CR870-2I DM870+T6201 X X X 16MB
CR870-2J DM870+T6201 X X X X 16MB
CR870-2K DM870+T6201 X X X X 16MB
CR870-2L DM870+T6201 X X X X 32MB X
CR870-2M DM870+T6201 X X X X X X (X)* 32MB X
CR870-2N DM870+T6201 X X X 16MB X
CR870-2O DM870+T6201 X X X X 16MB X
CR870-2P DM870+T6201 X X X X 32MB X
CR870-2Q DM870+T6201 X X X X 32MB X
CR870-2R DM870+T6201 X X X X 16MB

CR860-2A DM860 n/a X X n/a n/a 32MB
CR860-2B DM860 n/a X X X X n/a n/a 32MB

WiFi Ethernet USB

Contains

shield

Real­Time
Clock

LCD

Incl.

connector

PIFA

Antenna

Ext.

Antenna

UFL Conn.

SDRAM

Top Module

Shielding

* Connector on board, but not enabled

Note: Shaded rows are Custom or Obsolete configurations – not to be used for new /
standard MP designs.

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Data Sheet: CR Series

JukeBlox Networked Media Modules

5. Electrical Specifications

Parameter State Model Voltage Symbol min. typ. max. Units

Power Supply Voltage

Logic Input high voltage VIH 1.7 5.5 V
Logic Input low voltage VIL -0.3 0.7 V
Logic Input threshold voltage VIT 1.29 1.39 1.5 V
Schmitt-trigger input low to
high threshold voltage
Schmitt-trigger input high to
low threshold voltage
Logic Output high voltage VOH 2.4 V
Logic Output low voltage VOL 0.4 V
Logic Low-level output current
(V

=0.4V)

OL

Logic High-level output current
(V

=2.4V)

OH

Power Consumption

Reset
State

WLAN
Operating

Operating

int 1.9V
CR870

ext 1.9V

CR860

int 1.9V
CR870

ext 1.9V

CR860

3.3V PIN3.3 - 230 300 mW CR870

1.2V PIN1.2 - 45 60 mW

3.3V PIN3.3 - 165 215 mW

1.2V PIN1.2 - 45 60 mW

1.9V PIN1.9 - 35 50 mW

3.3V PIN3.3 - 145 190 mW

1.2V PIN1.2 - 45 60 mW

3.3V PIN3.3 - 1750 2275 mW CR870

1.2V PIN1.2 - 600 800 mW

3.3V PIN3.3 - 825 1075 mW

1.2V PIN1.2 - 600 800 mW

1.9V PIN1.9 - 535 700 mW

3.3V PIN3.3 - 760 990 mW

1.2V PIN1.2 - 600 800 mW

VIN

V

1.58 1.65 1.71 V

IT+

V

0.95 1.01 1.06 V

IT-

-9.6 -15.6 -19.3 mA

I

OL

11.1 22.5 35.3 mA

I

OH

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.

+2.97
+1.08

+3.3
+1.2

+3.63
+1.32

V
V

5.1 Absolute Maximum Ratings

Parameter Component Min Max Units

3.3V Supply Voltage -0.5 4.6 V

1.2V Supply Voltage -0.5 1.8 V
Logic Input Voltage -0.5 6 V
Logic Output Voltage

Main

-0.5 4.6 V

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5.2 Operating Conditions

Parameter Min Max Units

Operating Temperature 0 +70 °C
Operating Humidity 10 90 (non condensing) %RH
Storage Temperature -10 +75 °C
Storage Humidity 10 95 (non condensing) %RH
Storage Temperature Cycle Test 24 hrs -10 +75 °C

5.3 WiFi Specification (CR870 only)

Feature Description

WLAN Standards IEEE 802.11b

Frequency Band 2.412 – 2.472 GHz (2.4GHz ISM Band, 13 Channels)

Modulation 802.11b mode (DS-SS: IEEE 802.11b)

Transmission Speed 802.11b mode

Tx Power 802.11b mode (16.5dBm, +/-1dBm)

Power-on Ramp < 2us
RF Carrier Suppression < 15dBc
TX EVM < -5dB @ 6Mbps

Rx Sensitivity
(incl. CE2 Mother board)

Throughput Rate
(measured for each
module)

IEEE 802.11g

Channel 1 - Channel 13
North America, Japan Telec, Europe ETSI

802.11g mode (OFDM: IEEE 802.11g)

11Mbps, 5.5Mbps, 1Mbps

802.11g mode
54Mbps, 48Mbps, 36Mbps, 24Mbps, 18Mbps, 12Mbps, 9Mbps, 6Mbps

802.11g mode (21dBm, +/-1dBm)

< -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

Data Sheet: CR Series

JukeBlox Networked Media Modules

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Data Sheet: CR Series

JukeBlox Networked Media Modules

6. Regulatory Compliance and Quality

Description Country Compliance Module Versions Passed

Electromagnetic Compatibility
(Prescan)

Radio Regulations (CR870
only)

USA
Europe

USA
Japan
Canada
Europe
New Zealand/Australia
China
Korea

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.

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

C, G, I, J, D
C, G, J, D
C, G, I, J, D
C, G, J

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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

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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:

 With connec to r location s
 No bottom shield

Note:

1. All dimensions are measured in millimetres (mm).

2. PCB’s thickness: 1.00 +/- 0.10mm

3. Tolerance: +/-0.10mm

4. Outline Tolerance: +/-0.10mm

5. NPTH Hole: +/-0.05mm

6. PTH Hole: +/-0.075mm

7. Connector positions, board dimensions, mounting
hole positions and sizes are the same for all module
variants.

8. Connector position tolerance: +/- 0.38mm

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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 shie ld

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.

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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 bu ild 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

J1 LCD 30 2 x 15 x 0.5mm 14-5046-030-145-829+ (Kyocera)
J2 Media

Connector
Purpose

Connector
Type

B2B

Connector

Number
of Pins

120 2 x 60 x 0.5mm 14-5046-120-145-829+ (Kyocera)

Pin
Configuration

Male Mating Connector Part
Numbers

dat_CR860_CR870_3_5_datasheet_b.doc CONFIDENTIAL Version 3.5 – May 15th 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) P Power supply input ; +3.3V.
VIN (+1.2V) P Power supply input ; +1.2V.
VIN_OUTSIDE(+1.9V) P +1.9V for powering RF section. This voltage is generated internally on the module from

3V3RTC P For module versions without Real Time Clock (RTC) option, and for module versions with

GND P Ground (GND) connection for power supply 0V, signal returns and shielding.

SPI

SPI_DOUT O SPI data from DM870 to host controller.
SPI_DIN I SPI data from host controller to DM870.
SPI_CLK I SPI clock from host controller to DM870. Maximum recommended frequency is 2MHz,

SPI_NCS0 I SPI ch ip select from host controller to DM870.
PDOUT1 O This signal is used as SPI_REQ, SPI request signal, from DM870 to host controller for

SPI_NCS1 I Not used. Leave open.

UART

RXD1 I UART1 input to the DM870, used for shell access. BridgeCo recommends providing a

TXD1 O UART1 output from the DM870, used for shell access. BridgeCo recommends providing a

RXD0 I UART0 input. Optionally used for controlling an iPod via UART.
TXD0 O UART0 output. Optionally used for controlling an iPod via UART.

the 3.3V supply for all current module versions. Leave these pins open.

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.

typical frequency is 1MHz. See Not e 2 below.

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.

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.

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.

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Data Sheet: CR Series

JukeBlox Networked Media Modules

AUDIO
AV2DATA0 O I2S or left justified audio data output. Typically connected to external D/A converter

AV2CTRL0 O LRCK, audio data word clock at the audio sample rate (Fs). Maximum currently

AV2CTRL1 O MCLK, audio master clock at 256Fs. This can be used to clock an external D/A converter

AV2CLK O SCLK, audio data bit clock at 64Fs. Allows for up to 32 audio data bits per sample word.
AV4DATA1 O SPDIF format output. Can support samples rates up to 192kHz, so the maximum

AV4DATA0 I SPDIF input. Not used at present. Leave open.
AV2DATA1 O I2S or left justified audio data output. Not used at present. Leave open.
AOUTLP/AOUTLN,
AOUTRP/AOUTRN

AV2DATA2 I I2S or left justified audio data input. Can be driven from an optional external A/D

AV2DATA3 I I2 S or left justified audio data input. Not use d at present. Leave open.

CONTROL

NCS3 I BIST activa te. Low-active input to invoke the Built In Self Test (BIST) function. This

PDOUT0 I Factory Reset. GPIO-04. Return the CnE to facto ry settings. High-active input, DM8 70-

VCO0 I Infrared sensor input. GPIO-05. This is a Schmitt-Trigger input and can handle inputs

AV3CLK O ETH_NRESET Low-active reset for the on-board ethernet PHY. This output is driven by

AV3CTRL0, AV3CTRL1 I/O I2C_SCL, I2C_SDA bus created by GPIO-13 and GPIO-14.

NRESET_MOD I Low-active input to reset the module. This signal must be driven by an external reset

NPD_RF I Active low input to shut down the power for the 802.11 RF section. Internal 10kohm

ETHERNET

ETH_RX-, ETH_RX+,
ETH_CT, ETH_TX+,
ETH_TX­ETH_LED_SPEED,
ETH_LED_ACT

O Differential stereo output from PWM-DAC, right and left channels. These signals require

M Ethernet signals between the magnetics (tra nsformer) on the module and the external

O

input or to external DSP for further audio processing. Used for main left and right
channel audio output data. See Note 3.

supported frequency is 192kHz.

or DSP.

instantaneous frequency on this pin is 24.576MHz.

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.

converter used to interface to iPod analog output or other analog audio sources. If not
used, leave open.

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.

internal 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.

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.

the DM870. GPIO-12. Leave this pin open.

No internal pull-ups; Use 4.7ko h m pull up resistor on each pin to +3.3V. Maximum
frequency is 400kHz.

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.

pull-up resistor to +3.3V. Leave open if powering down the RF section is not required.

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.

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Data Sheet: CR Series

JukeBlox Networked Media Modules

USB
USB_DN, USB_DP M USB data signals , normally connected to type A connector, USB switch or iPod dock

USB_VBUS M Analog input for monitoring USB type A connector power. Connect to the +5V power

USBVBUSDRV O Logic output to control an external MOSFET that is in series with USB type A connector

JTAG

TMS,TCK,TDI, TDO I/O JTAG port for DM870. 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

GPIO

(not already

mentioned elsewhere in
this table)

A22 O GPIO18 Reserved for NOR flash address A22. Leave open.
A23 O GPIO-16 Reserved for NOR flash address A23. Leave open.
NWAIT I/O GPIO-15 Not currently as signed. Leave open.
NCS2 I GPIO-19 Assigned to iPod dock connector iPod NDETECT. See Note 8.
VCO1 I/O GPIO-07 Not currently assigned. Leave open.
MMIICRS I/O GPIO-00 Not currently assigned. Leave open.
MIICOL I/O GPIO-01 Not currently assigned. Leave ope n.
MIITXER I/O GPIO-02 Not currently assigned. Leave ope n.
MIITXCLK I/O GPIO-03 iPod dock connector Accessory Power signal. See Note 8.

MII

MIITXD0, MIITXD1,
MIIRXD0, MIIRXD1

LCD

LCDD0, LCDD1,
LCDD2, LCDD3,
LCDD4, LCDD5,
LCDD6, LCDD7,
LCDD8, LCDD9,
LCDD10, LCDD11,
LCDD12, LCDD13,
LCDD14, LCDD15,
LCD16, LCDD17,
LCDCLK, LCDCTRL0,
LCDCTRL1, LCDCTRL2,
LCDCTRL3

I/O Can be used to drive external shift registers to make extended GPIO signals (see Note 6),

I/O Used to make an SD card interface. SD card firmware is not supported at present in JB2.

O ITU-R BT.656 digital video output signals. Optionally used to make a TVout menu display,

I/O Can be used, with GPIO signals above, to drive an external ethernet PHY. This is not

O Uses optional J1 LCD connector. Connect to local LCD display. See Note 9. Leave open if

connector. Maximum bit rate is USB High Speed at 480Mbps.

which is driving the USB type A connector power pins. If this pin drops below 4 .6 V, 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.

power. See USB_VBUS above and Note 5.

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.

Leave open.

or to display decoded album art. Can be connected to video D/A converter (see Note 7),
or connected to a video DSP.

supported by JB2 firmware. Leave open.

not used.

dat_CR860_CR870_3_5_datasheet_b.doc CONFIDENTIAL Version 3.5 – May 15th 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 In put 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. Plea se 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_5_datasheet_b.doc CONFIDENTIAL Version 3.5 – May 15th 2011 - Page 19 of 26

Data Sheet: CR Series

V

A

JukeBlox Networked Media Modules

8.2.2 Connector PIN Assignments

J2 – Media Connector

Function GPIO IC PIN Signal Signal IC PIN GPIO Function

GND 1 2 GND
VIN (+3.3V) 3 4 VIN (+3.3V)
VIN (+3.3V) 5 6 VIN (+3.3V)

GND 7 8 GND
VIN (+1.2V) 9 10 VIN (+1.2V)
VIN (+1.2V) 11 12 VIN (+1.2V)

VIN_OUTSIDE (+1.9V) 15 16 VIN_OUTSIDE (+1.9V)

F4 3V3RTC 19 20 GND

SPI

Debug UART

SPI_E_NCS GPIO-11 C16 SSMD7 41 42 SSMD1 C14
SPI_E_SDI GPIO-09 A16 SSMD5 43 44 SSMCMD A14

USB

GPIO-16 K20 A23 69 70

I2C SDA GPIO-14 V1 AV3CTRL1 73 74 AV0CTRL0 M3
I2C SCL GPIO-13 V2 AV3CTRL0 75 76 AV1DATA3 P3

Video Output

LRCK T2 AV2CTRL0 93 94 AV4DATA1 W2 SPDIF output
A/D data 1 T3 AV2DATA3 95 96 AV4DATA0 Y1 SPDIF input
A/D data 0 T4 AV2DATA2 97 98 GND
D/A data 1 U1 AV2DATA1 99 100 ETH_LED_ACT
D/A data 0 U2 AV2DATA0 101 102 ETH_LED_SPEED

Free GPIO-15 N18 NWAIT 117 118 MIIRXD1 Y12

GPIO-18 K19 A22 71 72

Ethernet

E17 SPI_DOUT 25 26 TDI B19
F17 SPI_DIN 27 28 TDO A19
D17 SPI_CLK 29 30 SPI_NCS0 D16
C17 TXD0 31 32 SPI_NCS1 D15
A18 RXD0 33 34 NRESET_MOD Module reset input
B17 RXD1 35 36 SSMD6 B16 GPIO-10 SPI_E_CLK
A17 TXD1 37 38 SSMD4 C15 GPIO-08 SPI_E_SDO

B15 SSMD3 45 46 SSMWP C11
B14 SSMD0 47 48
C13 SSMCLK 49 50 NCS2 L18 GPIO-19 iPod NDETECT
C12 SSMCP 51 52 GND

A1 USB_DN 55 56 GND
B1 USB_DP 57 58 AOUTRN K2

H3 AOUTLP 63 64 PDOUT1 L1 GPIO-06 SPI_REQ
J3 AOUTLN 65 66 VCO1 L2 GPIO-07

K3 AV0CTRL2 77 78 AV1DATA2 R1
L3 AV0CTRL1 79 80 AV1DATA1 R2
N1 AV0CLK 81 82 AV1DATA0 R3
N2 AV0DATA3 83 84 GND
N3 AV0DATA2 85 86 AV2CTRL1 T1 MCLK
P1 AV0DATA1 87 88 GND
P2 AV0DATA0 89 90 AV2CLK R4 SCLK

GND 13 14 GND

GND 17 18 GND

GND 21 22 TMS B20

GND 23 24 TCK A20

GND 39 40 SSMD2 A15

GND 53 54 USB_VBUS

USBVBUSDRV 59 60 AOUTRP J2

GND 61 62 GND

GND 67 68

GND 91 92 GND

GND 103 104 MIICRS Y14 GPIO-00

ETH_RX- 105 106 MIICOL W14 GPIO-01

ETH_RX+ 107 108 MIITXER V10 GPIO-02

ETH_CT 109 110 MIITXCLK V11 GPIO-03 iPod Access Power

ETH_TX- 111 112 MIITXD0 W10

ETH_TX+ 113 114 MIITXD1 Y10

GND 115 116 MIIRXD0 W12

NPD_RF 119 120 GND

PIN Number

NCS3

PDOUT0

CO0
V3CLK

GPIO-17 BIST activate

M18

GPIO-04 Factory reset

M1

GPIO-05 IR input

M2

GPIO-12 ETH NRESET

U3

JTAG

SPI

USB

Video Output

Ethernet

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_5_datasheet_b.doc CONFIDENTIAL Version 3.5 – May 15th 2011 - Page 20 of 26

J1 – LCD Connector

Data Sheet: CR Series

JukeBlox Networked Media Modules

Function GPIO IC PIN Signal Signal IC PIN GPIO Function

GND

Y7 LCDD0
V7 LCDD2

W6 LCDD4

U6 LCDD6

LCD Interface

LCD Interface

W5 LCDD8

U5 LCDD10

W4 LCDD12

U4 LCDD14

W3 LCDD16

GND

Y9 LCDCLK
Y8 LCDCTRL1
V8 LCDCTRL3

GND

PIN Number

12
34
56
78

910
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30

GND
LCDD1 W7
LCDD3 Y6
LCDD5 V6
LCDD7 Y5
LCDD9 V5
LCDD11 Y4
LCDD13 V4
LCDD15 Y3
LCDD17 Y2
GND
LCDCTRL0 W9
LCDCTRL2 W8
GND
GND

LCD Interface

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_5_datasheet_b.doc CONFIDENTIAL Version 3.5 – May 15th 2011 - Page 21 of 26

9.1.1 Power up, Reset and Power Down Timing

Voltage

Power Up Power Down

+3.3V

+1.2V

0V

< 300ms

NRESET_MOD

>= 2ms

Data Sheet: CR Series

JukeBlox Networked Media Modules

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 syst em configu r ation and
shielding.

dat_CR860_CR870_3_5_datasheet_b.doc CONFIDENTIAL Version 3.5 – May 15th 2011 - Page 22 of 26

Data Sheet: CR Series

JukeBlox Networked Media Modules

10. Revision Control

Revision Date / Author Remarks

V3.5 b May 15, 2011 / SHs  Updated the Feature list on Cover page

 Updated J1 & J2 “Connector PIN Assignments” tables: removed

Power column & re-organised columns + added Notes

 Changed “Applicatio n No tes” titl e 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 No te 11 to the “Pin Descriptions” section
 Updated “Regulatory Complia nce and Quality” table: u pdated

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 Or dering 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 “K ey Connections” section title to “Pin Descriptions”

 Updated “Detailed Connector PIN Descriptions” section title to

“Connector PIN Assignments”

 Updated J2 Me dia 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  Updated “Board Pictures” subsection titles & notes – removing

mention of Mfg code

 Updated “Ordering Guide” – removed Mfg column, fixed Top

Shielding column

V3.3 b January 22, 2011 / SHs  Updated “Board Pictures” subsection titles

 Added text to “Board Pictures” subsections

 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

dat_CR860_CR870_3_5_datasheet_b.doc CONFIDENTIAL Version 3.5 – May 15th 2011 - Page 23 of 26

Data Sheet: CR Series

JukeBlox Networked Media Modules

 Updated the Or dering Guide table with L, M, N, O configurations

and new explanatory shading

V3.3 January 14, 2011 / SHs  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 colu mn

 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

V3.2 b January 11, 2011 / SHs  Updated Application Notes se ct ion with new subsec tio ns –

“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 Se ction 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

 Updated Power Consumption entries in “Electrical Specifications”

table

 Added No te 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

dat_CR860_CR870_3_5_datasheet_b.doc CONFIDENTIAL Version 3.5 – May 15th 2011 - Page 24 of 26

Data Sheet: CR Series

JukeBlox Networked Media Modules

 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

V2.10 April 10, 2010 / SHs  Corrected “Module Connectors” section text to say “female

V2.9 March 22, 2010 / SHs  Renamed “WLAN Antenna Connectors” section to “WLAN UFL

V2.8 Feb. 24, 2010 / SHs  Added “Bottom View of CR870-2C version” image to “Overview”

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

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”

V2.2 Feb. 02, 2010 / SHs  Added new items to “WiFi Specification” table

V2.1 Jan. 04, 2010 / SHs  Updated header layout

V2.0 Jan. 02, 2010 / JWs and

SHs

V1.1 Dec. 18, 2009 / SHs  Changed Core Module name to “JukeBlox Network ed Media

“Electrical Specifications” table

board-to-board connectors”

 Updated Module Connectors table with correct “Male” Mating

Connector Part Numbers

Antenna Connector”

 In the “W LAN Antenna Connectors” table, “receptible” became

“receptacle”

 CR870-2G option and External Antenna UFL connector column

added to Ordering Guide

 Power Co nsumption 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 Functio n column of Pin 64 in J2-Media

Connector table

section

 Added new co axial text in “WLAN Antenna Connectors ” section

 Added manufacturer name to “Module Connectors” table

 Updated entries in “Key Connections” table

 Updated pins 1, 2, 25, 27, 58 & 60 in “J2 – Media Connector”

table

 Amended Block Diagram to show input of 1.2V instead of 1.8V

 Removed “CR860/CR870” from data sheet title

 Left justified Key Features list on front page

 New Ordering Guide table

 Updated Module Weights

 New header and footer layout

 Fit front and back Overview images onto one page

 Bulletise Revision Control table

Module(CR Series)”

 Front page rev isions: removed front and back images of board;

inserted angled image of board; moved Key Features list to

dat_CR860_CR870_3_5_datasheet_b.doc CONFIDENTIAL Version 3.5 – May 15th 2011 - Page 25 of 26

Data Sheet: CR Series

JukeBlox Networked Media Modules

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 Gu ide

 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_5_datasheet_b.doc CONFIDENTIAL Version 3.5 – May 15th 2011 - Page 26 of 26

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.

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.

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 FCC ID:PPQ-CR8702N“, FCC ID displayed on label.

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 Dell est inférieure à la limite d'exposition aux

fréquences radio d'Industry Canada (IC). Utilisez l’appareil de sans fil Dell 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