Tatung A28188E User Manual
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User Manual
Product Label:
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MODEL: A28188E
1.Overview ：
A28188E is a WLAN 11n USB module, which fully supports
the features and Functional compliance of IEEE 802.11n,e and i
standards.
It supports up to 150Mbps high-speed wireless network
connections.
It is designed to provide excellent performance with low
power Consumption and enhance the advantages of robust
system and cost-effective.
It is targeted at competitive superior performance, better
power Management applications.
2. Features
General
■5-pin Stamp hole
■CMOS MAC, Baseband PHY, and RF in a
■single chip for IEEE 802.11b/g/n compatible
WLAN
■Complete 802.11n solution for 2.4GHz band
■72.2Mbps receive PHY rate and 72.2Mbps
transmit PHY rate using 20MHz bandwidth
■150Mbps receive PHY rate and 150Mbps
transmit PHY rate using 40MHz bandwidth
■ Compatible with 802.11n specification
■ Backward compatible with 802.11b/g
devices while operating in 802.11n mode
Interface
■Complies with USB 1.0/1.1/2.0 for WLAN
Standards Supported
■IEEE 802.11b/g/n compatible WLAN
■IEEE 802.11e QoS Enhancement (WMM)
■802.11i (WPA, WPA2). Open, shared key,
and pair-wise key authentication services
WLAN MAC Features
■Frame aggregation for increased MAC
efficiency (A-MSDU, A-MPDU)
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■Low latency immediate High-Throughput
Block Acknowledgement (HT-BA)
■ PHY-level spoofing to enhance legacy
compatibility
■ Power saving mechanism
■ Channel management and co-existence
■Transmit Opportunity (TXOP) Short
Inter-Frame Space (SIFS) bursting for
higher multimedia bandwidth
WLAN PHY Features
IEEE 802.11n OFDM
■ One Transmit and one Receive path (
1T1R)
■20MHz and 40MHz bandwidth transmission
■Short Guard Interval (400ns)
■DSSS with DBPSK and DQPSK, CCK
modulation with long and short preamble
■OFDM with BPSK, QPSK, 16QAM, and
64QAM modulation.
Convolutional Coding Rate:1/2,2/3,3/4,and 5/6
■Maximum data rate 54Mbps in 802.11g and
150Mbps in 802.11n
■Hardware antenna diversity in per packet
base
■Selectable receiver FIR filters
■Programmable scaling in transmitter and
receiver to trade quantization noise against
increased probability of clipping
■Fast receiver Automatic Gain Control
(AGC)
■ On-chip ADC and DAC
Application Diagram
MODEL: A28188E
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