Microchip Technology CX8703K User Manual
JukeBlox Networked Media Module
CX Series
Datasheet
Complete audio networking system on a small module
Integrated Ethernet + USB 2.0
WiFi-certified 802.11b/g
Built-in strip antenna
Optional 2X Diversity 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
SMSC CX860/CX870 Revision 2.2 (11-08-11)
SMSC CONFIDENTIAL
JukeBlox Networked Media Modules – CX Series
Datasheet
80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000 or 1 (800) 443-SEMI
Copyright © 2011 SMSC or its subsidiaries. All rights reserved.
Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete information sufficient for
construction purposes is not necessarily given. Although the information has been checked and is believed to be accurate, no responsibility is assumed for inaccuracies. SMSC
reserves the right to make changes to specifications and product descriptions at any time without notice. Contact your local SMSC sales office to obtain the latest specifications
before placing your product order. The provision of this information does not convey to the purchaser of the described semiconductor devices any licenses under any patent
rights or other intellectual property rights of SMSC or others. All sales are expressly conditional on your agreement to the terms and conditions of the most recently dated
version of SMSC's standard Terms of Sale Agreement dated before the date of your order (the "Terms of Sale Agreement"). The product may contain design defects or errors
known as anomalies which may cause the product's functions to deviate from published specifications. Anomaly sheets are available upon request. SMSC products are not
designed, intended, authorized or warranted for use in any life support or other application where product failure could cause or contribute to personal injury or severe property
damage. Any and all such uses without prior written approval of an Officer of SMSC and further testing and/or modification will be fully at the risk of the customer. Copies of this
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DAMAGES.
SMSC CX860/CX870 2 Revision 2.2 (11-08-11)
SMSC CONFIDENTIAL
JukeBlox Networked Media Modules – CX Series
Datasheet
Table of Contents
1 INTRODUCTION............................................................................................................... 4
2 BLOCK DIAGRAM .............................................................................................................4
3 BOARD PICTURES............................................................................................................5
3.1 TOP VIEW OF CX870 ...................................................................................................... 5
3.2 BOTTOM VIEW OF CX870 ................................................................................................. 6
3.2.1 CX870 Bottom View with 64-pin Low Density Connector ............................................. 6
3.2.2 CX870 Bottom View with 120-pin Media Connector.................................................... 6
3.3 PRODUCTION MODULE WITH TOP AND RF SHIELDS IN PLACE – TOP VIEW............................................. 7
3.4 PRODUCTION MODULE WITH 64-PIN CONNECTOR OPTION – SIDE VIEW.............................................. 7
3.5 EXAMPLE PRODUCTION MODULE SHOWING SOLDERED RF SHIELD..................................................... 8
4 ORDERING GUIDE ...........................................................................................................9
4.1 PART NUMBER SYNTAX ..................................................................................................... 9
5 ELECTRICAL SPECIFICATIONS....................................................................................... 10
5.1 ABSOLUTE MAXIMUM RATINGS............................................................................................11
5.2 OPERATING CONDITIONS..................................................................................................11
5.3 WIFI SPECIFICATION (CX870 ONLY) ...................................................................................12
6 REGULATORY COMPLIANCE AND QUALITY .................................................................... 13
6.0.1 Antenna Considerations ..........................................................................................14
6.1 ROHS.......................................................................................................................15
6.2 ENVIRONMENTAL TEST.....................................................................................................15
6.3 ESD AND TRANSIENT TEST (APPLIES TO LAN AND USB EXTERNAL CONNECTIONS ONLY) ..........................15
6.4 MAGNETIC FIELD TEST ....................................................................................................15
6.5 MTBF.......................................................................................................................15
6.6 MECHANICAL SPECIFICATIONS............................................................................................15
6.7 MODULE QUALITY ..........................................................................................................15
7 BOARD DIMENSIONS AND WEIGHT............................................................................... 16
7.1 TOP & BOTTOM VIEW OF CX870 MODULE..............................................................................16
7.2 SIDE VIEW OF CX870 MODULE ..........................................................................................16
7.3 3D VIEW OF CX870 MODULE............................................................................................17
7.4 MODULE WEIGHT ..........................................................................................................17
8 CONNECTORS AND CONNECTIONS ................................................................................18
8.1 WLAN UFL ANTENNA CONNECTOR (OPTIONAL) ........................................................................18
8.2 MODULE CONNECTORS ....................................................................................................18
8.2.1 Pin Descriptions ..................................................................................................19
8.2.2 Connector PIN Assignments ..................................................................................24
8.2.3 GPIO Assignments...............................................................................................26
9 APPLICATION GUIDELINES ...........................................................................................26
9.1 POWER SUPPLY SEQUENCING AND RESET TIMING.......................................................................26
9.1.1 Power up, Reset and Power Down Timing................................................................27
9.2 RF CONSIDERATIONS......................................................................................................27
10 REVISION CONTROL.................................................................................................... 28
11 APPENDIX 1: CERTIFICATION NOTICES ...................................................................... 34
SMSC CX860/CX870 3 Revision 2.2 (11-08-11)
SMSC CONFIDENTIAL
JukeBlox Networked Media Modules – CX Series
Datasheet
1 Introduction
The CX-series module is a single-board networked media player module, based on SMSC’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 – CX Series
RJ-45
Transformer
Type-A
Display
SD-Card
CCIR-656
A/D, D/A
S/PDIF
Host
Controller/
LCD setup
+
USB
Apple Coprocessor
3.3V
1.2V
1.9V
Reset In
3x6bit RGB
4/8bit MMC
Video Out
Audio I/O
SPI Ctrl.
GPIO
Ethernet
Transceiver
I2C
PWM DAC
UART
I2C
JTAG
RST
RMII
USB
LCD
SSM
I2C
DAC
AV
Ports
UART
I2C
JTAG
SPI
GPIO
DM860
or
DM870
802.11
Flash
Mem.
Bus
RF Amp. ANT
Ext.
Antenna
Antenna
NAND-Flash
256 Mbit
SDRAM
NOR-Flash
2.4 GHz RF
transceiver
switch
PCB
Ext.
Antenna
24.000 MHz
PCB
Antenna
Note: Choice of antenna is a build option, see Ordering Guide.
SMSC CX860/CX870 4 Revision 2.2 (11-08-11)
SMSC CONFIDENTIAL
JukeBlox Networked Media Modules – CX Series
Datasheet
3 Board Pictures
Please note that all production modules include the RF and top shield. The below top view has the shields
temporarily removed to show the components. Also, please note that the 64-pin connector mounted on the module is
the male gender.
3.1 Top View of CX870
802.11b/g
front-end
PCB antenna
PCB antenna
External Antenna
Connectors
SMSC processor
Ethernet PHY
SDRAM
SMSC CX860/CX870 5 Revision 2.2 (11-08-11)
SMSC CONFIDENTIAL
JukeBlox Networked Media Modules – CX Series
Datasheet
3.2 Bottom View of CX870
3.2.1 CX870 Bottom View with 64-pin Low Density Connector
LCD connector
Low density
connector
3.2.2 CX870 Bottom View with 120-pin Media Connector
FLASH
LCD
connector
FLASH
Media
connector
SMSC CX860/CX870 6 Revision 2.2 (11-08-11)
SMSC CONFIDENTIAL
JukeBlox Networked Media Modules – CX Series
Datasheet
3.3 Production Module with Top and RF shields in place
– Top View
3.4 Production Module with 64-pin Connector Option –
Side View
SMSC CX860/CX870 7 Revision 2.2 (11-08-11)
SMSC CONFIDENTIAL
JukeBlox Networked Media Modules – CX Series
Datasheet
3.5 Example Production Module Showing Soldered RF
Shield
SMSC CX860/CX870 8 Revision 2.2 (11-08-11)
SMSC CONFIDENTIAL
JukeBlox Networked Media Modules – CX Series
Datasheet
4 Ordering Guide
WiFi
(on-module
PCB
Part Number SMSC IC’s
CX870-3A DM870+T6201 X (X)* X X X X X X X
CX870-3B DM870+T6201 X X X X X X X
CX870-3D DM870+T6201 X X X X X X X
CX870-3F DM870+T6201 X X X X X X X
CX870-3G DM870+T6201 X X X X X X
CX870-3H DM870+T6201 X X X X X X X
CX870-3I DM870+T6201 X X X X X X
CX870-3J DM870+T6201 X X X X X X
CX870-3K DM870+T6201 X X X X X X X
diversity)
Ext. Diversity
Antennas (UFL
Conn.)+
One
Two
Ant.
Ant.
Ethernet
USB
Host
Low
density 64-
pin Conn.
Media
120-pin
Conn.
LCD
32MByte
Conn.
SDRAM
16MByte
SDRAM
1Gbit
NAND
FLASH
8MByte
NOR
FLASH
Top
Module
Shield
Note: Please note that the Apple Authentication Coprocessor will not be provided on the CX module.
The Apple Authentication Coprocessor should be provided on the product motherboard, connected to
the SDA, SCL signals from the CX module.
Note: Shaded rows indicate Custom or Obsolete configuration - NOT TO BE USED FOR
NEW/STANDARD MP DESIGNS.
* Connector on board, but requires board modification to enable the connector.
+ The position of the X in the One Ant. column indicates that there is one external antenna connector
provided. The position of the X in the Two Ant. column indicates that there are two external antenna
connectors provided. Do not use a module which has two external antenna connectors with only one
external antenna connected. Leaving one antenna socket open will degrade WiFi performance. SMSC
recommends always using modules with two external antennas for best performance.
4.1 Part Number Syntax
CX870-3A
Product Family
Revision
1: DVT1
2: DVT2
3: MP
Configuration
SMSC CX860/CX870 9 Revision 2.2 (11-08-11)
SMSC CONFIDENTIAL
JukeBlox Networked Media Modules – CX Series
Datasheet
5 Electrical Specifications
Parameter State Model Voltage Symbol min. typ. max. Units
Power Supply Input Voltage
VIN
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
1.58 1.65 1.71 V
V
IT+
0.95 1.01 1.06 V
V
IT-
Logic Output high voltage VOH 2.4 V
Logic Output low voltage VOL 0.4 V
Logic Low-level output
current
=0.4V)
(V
OL
Logic High-level output
current
=2.4V)
(V
OH
Reset State
I
-9.6 -15.6 -19.3 mA
OL
I
11.1 22.5 35.3 mA
OH
3.3 I3.3 60 78 mA
1.2 I1.2 32 42 mA
1.9 I1.9 18 23 mA
3.3 I3.3 185 241 mA
1.2 I1.2 337 438 mA
Current Consumption
Operating in
idle state
CX870
1.9 I1.9 257 334 mA
Playback over
WiFi high mips
& rate
condition
3.3 I3.3 240 312 mA
1.2 I1.2 347 451 mA
1.9 I1.9 258 335 mA
Note: The maximum current values are 30% larger than the typical values. The maximum
values are intended to be used for power supply sizing calculations.
3.0
1.08
1.8
3.3
1.2
1.9
3.6
1.32
2.0
V
V
V
SMSC CX860/CX870 10 Revision 2.2 (11-08-11)
SMSC CONFIDENTIAL
JukeBlox Networked Media Modules – CX Series
Datasheet
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
1.9V Supply Voltage -0.5 2.2 V
Logic Input Voltage -0.5 6 V
Logic Output Voltage
Main
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
-0.5 4.6 V
SMSC CX860/CX870 11 Revision 2.2 (11-08-11)
SMSC CONFIDENTIAL
JukeBlox Networked Media Modules – CX Series
Datasheet
5.3 WiFi Specification (CX870 only)
Feature Description
WLAN Standards IEEE 802.11b
IEEE 802.11g
Frequency Band 2.412 – 2.472 GHz (2.4GHz ISM Band, 13 Channels)
Channel 1 - Channel 13
North America, Japan Telec, Europe ETSI
Modulation 802.11b mode (DS-SS: IEEE 802.11b)
802.11g mode (OFDM: IEEE 802.11g)
Transmission Speed 802.11b mode
11Mbps, 5.5Mbps, 1Mbps
802.11g mode
54Mbps, 48Mbps, 36Mbps, 24Mbps, 18Mbps, 12Mbps, 9Mbps, 6Mbps
Tx Power 802.11b mode: 17.5dBm, +2dB/-3dBm, using nominal MIB settings
802.11g mode: 16.0dBm +/-2.5dBm, using nominal MIB settings
Power-on Ramp < 2us
RF Carrier Suppression < 15dBc
TX EVM < -9dB @ 6MHz
< -25dB @ 54Mbps
Rx Sensitivity
(incl. CE2 Mother board)
Throughput Rate
(measured for each
module)
802.11b mode:
<=-86dBm @ 1Mbps, <=-83dBm @ 5.5Mbps, <=-81dBm @ 11Mbps
(<10%PER)
802.11g mode:
<=-86dBm @ 6Mbps, <=-75dBm @ 36Mbps, <=-69dBm @ 54Mbps (<10%
PER)
See factory test specification
Note: About Tx Power, different (higher/lower) RF output power settings may be used for
specific regions, antennas and/or enclosures, in which case re-certification may be
required.
SMSC CX860/CX870 12 Revision 2.2 (11-08-11)
SMSC CONFIDENTIAL
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