Realtek Semiconductor RTL8723AS User Manual
Realtek Semiconductor Corp.
No. 2, Innovation Road II, Hsinchu Science Park, Hsinchu 300, Taiwan
Tel.: +886-3-578-0211. Fax: +886-3-577-6047
www.realtek.com.tw
RTL8723AS
User’s Manual
Rev. 1.0
10 Jan. 2012
RTL8723AS
User Manual of combo module
COPYRIGHT
© 2011 Realtek Semiconductor Corp. All rights reserved. No part of this document may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any
means without the written permission of Realtek Semiconductor Corp.
DISCLAIMER
Realtek provides this document “as is”, without warranty of any kind, neither expressed nor implied,
including, but not limited to, the particular purpose. Realtek may make improvements and/or changes in this
document or in the product described in this document at any time. This document could include technical
inaccuracies or typographical errors.
TRADEMARKS
Realtek is a trademark of Realtek Semiconductor Corporation. Other names mentioned in this document are
trademarks/registered trademarks of their respective owners.
USING THIS DOCUMENT
This document is intended for the software engineer’s reference and provides detailed programming
information.
Though every effort has been made to ensure that this document is current and accurate, more information
may have become available subsequent to the production of this guide. In that event, please contact your
Realtek representative for additional information that may help in the development process.
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Table of Contents
1. GENERAL DESCRIPTION ................................................................................................................................................ 1
1.1. .............................................................................................................................................................................................. 1
2. FEATURES ............................................................................................................................................................................... 1
1.2. ENVIRONMENTAL ............................................................................................................................................................ 5
1.2.1. Operating ............................................................................................................................................................... 5
1.2.2. Storage .................................................................................................................................................................... 5
1.3. FUNCTIONAL SPECIFICATIONS .......................................................................................................................................... 5
1.4. WARNING ........................................................................................................................................................................ 7
4.5.1 Federal Communication Commission Interference Statement ...................................................................................... 7
4.5.2 Industry Canada Statement .......................................................................................................................................... 8
4.5.3 NCC
警語
................................................................................................................................................................... 11
List of Tables
TABLE 2. FUNCTIONAL SPECIFICATIONS ........................................................................................................................................ 5
List of Figures
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1. General Description
1.1.
The Realtek is a highly integrated single-chip for 802.11n Wireless LAN and Bluetooth 2.1/3.0/4.0.It was
composed of MAC, baseband, and RF, providing a complete solution for a high-performance integrated
WLAN and BT. There are two kind of interface operation: one is SDIO for WLAN and UART for BT. The
other one is USB for both WLAN and BT.(USB multi-function)
The integration provides better coordination between 802.11 and Bluetooth, and with sophisticated
dynamic power control and packet traffic arbitration, is able to provide the best coexistence performance.
also integrates RF/PA/LNA for both of 802.11n and Bluetooth, so the external part numbers is reduced to
minimum.
The 802.11 part supports 150Mbps PHY rate and delivers reliable throughput from an extended distance.
The Bluetooth part supports latest 3.0+HS/4.0+LE operation and provides smooth user experience under all
usage scenarios. Optimized RF architecture and baseband algorithms provide superb performance and
lowest power consumption.
2. Features
2.1 General
68-pin QFN
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
Qualified Bluetooth v2.1+EDR and v3.0+HS Systems
Support for v4.0 Bluetooth Low Energy
Integrated class1, class2, and class3 PA and modem in Bluetooth Controller
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Standards Supported
IEEE 802.11b/g/n compatible WLAN
IEEE 802.11e QoS Enhancement (WMM)
IEEE 802.11h TPC, Spectrum Measurement
802.11i (WPA, WPA2). Open, shared key, and pair-wise key authentication services
Cisco Compatible Extensions (CCX) for WLAN devices
Host Interface
SDIO for WLAN / UART for BT
Multi-function USB for WLAN and BT
WLAN MAC Features
RTL8723AS
Frame aggregation for increased MAC efficiency (A-MSDU, A-MPDU)
Low latency immediate High-Throughput Block Acknowledgement (HT-BA)
Long NAV for media reservation with CF-End for NAV release
PHY-level spoofing to enhance legacy compatibility
Power saving mechanism
Channel management and co-existence
Multiple BSSID feature allows the RTL8723AS to assume multiple MAC identities when used as a
wireless bridge
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)
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DSSS with DBPSK and DQPSK, CCK modulation with long and short preamble
OFDM with BPSK, QPSK, 16QAM, and 640QAM 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
Switch diversity for DSSS/CCK
Hardware antenna diversity
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
BT Controller
Integrated MCU to execute Bluetooth protocol stack
Support 3 SCO links simultaneously
Support 3 scatternets
Enhanced BT/WIFI Coexistence Control to improve transmission quality in different profiles
Bluetooth Low Energy Dual Mode support
Bluetooth Transceiver Features
Fast AGC control to improve receiving dynamic range
Support AFH to dynamically detect channel quality to improve transmission quality
Integrated internal class1, class2, and class3 PA
Bluetooth 3.0 compliant
Bluetooth Low Energy supported
Integrated 32K oscillator
Peripheral Interfaces
General Purpose Input/Output (11 pins)
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4-wire EEPROM control interface (93C46)
Three configurable LED pins
Configurable Bluetooth Coexistence Interface
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Standards
WiFi:
IEEE 802.11b, IEEE 802.11g, Draft IEEE 802.11n, IEEE 802.11d,
IEEE 802.11e, IEEE 802.11h, IEEE 802.11i
BT:
BT v3.0, v4.0
Bus Interface
SDIO for WiFi and UART for BT
Multi-function USB for WiFi and BT
Form Factor
Half Size Mini Card
Data Rate
802.11b:
11, 5.5, 2, 1 Mbps;
802.11g:
54, 48, 36, 24, 18, 12, 9, 6 Mbps
802.11n:
MCS 0 to 7 for HT20MHz;
MCS 0 to 7 for HT40MHz
BT:
1/2/3 Mbps
Media Access Control
WiFi:
CSMA/CA with ACK
WiFi + BT:
AFH, Time Division
Modulation Techniques
802.11b:
CCK, DQPSK, DBPSK
802.11g:
64 QAM, 16 QAM, QPSK, BPSK
802.11n:
BPSK, QPSK, 16-QAM, 64-QAM
BT:
GFSK, /4 DQPSK, 8DPSK
Network Architecture
WiFi:
Ad-hoc mode (Peer-to-Peer )
Infrastructure mode
1.2. Environmental
1.2.1. Operating
Operating Temperature: 0 to 70 C
Relative Humidity: 5-90% (non-condensing)
1.2.2. Storage
Temperature: -55 to 125 C
Relevant Humidity: 5-95% (non-condensing)
1.3. Functional Specifications
Table 1. Functional Specifications
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