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Product Specifications
802.11b/g USB Embedded Module
Model Number: VNT6656G6A10
VNT6656G6A40
Revision 1.4
March 28, 2007
VIA TECHNOLOGIES, INC.
Free Datasheet http://www.nDatasheet.com






VIA Technologies, Inc.
Table of Contents
1.0 Scope................................................................................................................................ 1
1.1 Document ....................................................................................................................... 1
1.2 Product Features............................................................................................................ 1
2.0 Requirements................................................................................................................... 2
2.1 Functional Block Diagram .............................................................................................. 2
2.2 General Requirements ................................................................................................... 3
2.2.1 IEEE 802.11b Section .............................................................................................. 3
2.2.2 IEEE 802.11g Section .............................................................................................. 3
2.2.4 General Section ....................................................................................................... 5
2.3 Software Requirements.................................................................................................. 6
2.3.1 Information ............................................................................................................... 6
2.3.2 Configuration............................................................................................................ 6
2.3.3 Security .................................................................................................................... 7
2.4 Mechanical Requirements.............................................................................................. 8
2.4.1 Information ............................................................................................................... 8
2.4.2 Mechanical Drawing................................................................................................. 8
2.5 Requirements of Reliability, Maintainability and Quality................................................. 9
2.6 Environmental Requirements ......................................................................................... 9
2.7 Module Pin Definition and Schematic Suggestion........................................................ 10
2.7.1 VNT6656G6A40..................................................................................................... 10
2.7.2 VNT6656G6A10..................................................................................................... 11
3.0 Appendix ........................................................................................................................ 12
3.1 Compliance List of Antenna Kits .................................................................................. 12
3.2 FCC/CE DoC Document .............................................................................................. 13
Revision 1.4 • March 28, 2007
- iv -
Free Datasheet http://www.nDatasheet.com

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2.2 General Requirements
2.2.1 IEEE 802.11b Section
Item
2.2.1.1
2.2.1.2
2.2.1.3
2.2.1.4
2.2.1.5
2.2.1.6
2.2.1.7
2.2.1.8
2.2.1.9
Feature
Standard
Radio and
Modulation
Schemes
Operating
Frequency
Channel
Numbers
Data Rate
Media Access
Protocol
Transmitter
Output Power
Receiver
Sensitivity
Throughput
Detailed Description
y IEEE 802.11b
y DQPSK, DBPSK, DSSS, and CCK
y 2400 ~ 2483.5MHz ISM band
y 11 channels for United States
13 channels for Europe/Japan Countries
y 11, 5.5, 2, and 1Mbps
y CSMA/CA with ACK
y Typical 16dBm at 11, 5.5, 2, and 1Mbps at
room temperature 25 degree C
y Typical –80dBm for 11Mbps @ 8% PER
y At least 5.1Mbps@ 11Mbps link rate, ideal
environment
2.2.2 IEEE 802.11g Section
Item
2.2.2.1
2.2.2.2
2.2.2.3
2.2.2.4
2.2.2.5
2.2.2.6
2.2.2.7
Feature
Standard
Radio and
Modulation Type
Operating
Frequency
Channel
Numbers
Data Rate
Media Access
Protocol
Transmitter
Output Power
Detailed Description
y IEEE 802.11g
y BPSK, QPSK, 16QAM, 64QAM, OFDM
y 2400 ~ 2483.5MHz ISM band
y 11 channels for United States
13 channels for Europe/Japan Countries
y 6, 9, 12, 18, 24, 36, 48, 54Mbps
y CSMA/CA with ACK
y Typical RF Output Power at each Data Rate
and at room Temp. 25degree C
y 15dBm at 54Mbps
Revision 1. • March 28, 2007
-3-
2.0 Requirements
Free Datasheet http://www.nDatasheet.com

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