Realtek Semiconductor RTL8812AE User Manual

Realtek Semiconductor Corp.

No. 2, Innovation Road II, Hsinchu Science Park, Hsinchu 300, Taiwan
Tel.: [phone]. Fax: [phone]
www.realtek.com.tw

RTL8812AE

Half Mini-Card User’s Manual

Rev. 1.0

29 November 2012

RTL8812AE

Half Mini-Card User Manual

COPYRIGHT

© 2012 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. 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.

ii Rev.1.0

RTL8812AE

Half Mini-Card User Manual

Table of Contents

1. GENERAL DESCRIPTION................................................................................................................................................ 1

2. FEATURES........................................................................................................................................................................... 1

3. PRODUCT SPECIFICATIONS.......................................................................................................................................... 3

3.1. ENVIRONMENTAL ............................................................................................................................................................. 3

3.1.1. Operating ............................................................................................................................................................... 3

3.1.2. Storage.................................................................................................................................................................... 3

3.2. FUNCTIONAL SPECIFICATIONS .......................................................................................................................................... 3

3.3. WARNING......................................................................................................................................................................... 5

3.3.1 Federal Communication Commission Interference Statement ...................................................................................... 5

3.3.2 Industry Canada Statement .......................................................................................................................................... 6

3.3.3 NCC

警語

..................................................................................................................................................................... 7

List of Tables

TABLE 2. FUNCTIONAL SPECIFICATIONS ......................................................................................................................................... 3

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RTL8812AE

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1. General Description

The Realtek RTL8812AE is a highly integrated single-chip MIMO (Multiple In, Multiple Out) Wireless LAN
(WLAN) PCI Express network interface controller complying with the wireless very high throughput IEEE

802.11ac Draft 2.0 and high throughput 802.11n specification. The RTL8812AE provides a complete solution
for a high-performance wireless client and also supports WiFi Direct feature that can easily build a WiFi P2P
PAN network.

The RTL8812AE baseband implements Multiple Input, Multiple Output (MIMO) Orthogonal Frequency
Division Multiplexing (OFDM) with two transmit and two receive paths (2T2R). Features include two spatial
stream transmissions, short Guard Interval (GI) of 400ns, spatial spreading, and support for 20MHz, 40MHz
and 80MHz channel bandwidth. Moreover, RTL8812AE provides one spatial stream space-time block code
(STBC), Transmit Beamforming (TxBF) and Low Density Parity Check (LDPC) to extend the range of
transmission. At the receiver, extended range and good minimum sensitivity is achieved by having receiver
diversity up to 2 antennas. As the recipient, the RTL8812AE also supports explicit sounding packet feedback
that helps senders with beamforming capability. With 2 independent RF blocks, the RTL8812AE can perform
fast roaming without link interruption.

For legacy compatibility, Direct Sequence Spread Spectrum (DSSS), Complementary Code Keying (CCK) and
OFDM baseband processing are included to support all IEEE 802.11b, 802.11g and 802.11a data rates.
Differential phase shift keying modulation schemes, DBPSK and DQPSK with data scrambling capability are
available, and CCK provides support for legacy data rates, with long or short preamble. The high speed
FFT/IFFT paths, combined with BPSK, QPSK, 16QAM, 64QAM and 256QAM modulation of the individual
subcarriers, and rate compatible coding rate of 1/2, 2/3, 3/4, and 5/6, provide up to 866.7Mbps for IEEE

802.11ac MIMO OFDM.

The RTL8812AE builds in an enhanced signal detector, an adaptive frequency domain equalizer, and a
soft-decision Viterbi decoder to alleviate severe multi-path effects and mutual interference in the reception of
multiple streams. For better detection quality, receive diversity with Maximal-Ratio-Combine (MRC) applying
up to two receive paths is implemented. Robust interference detection and suppression are provided to protect
against Bluetooth, cordless phone, and microwave oven interference.

Receive vector diversity for multi-stream application is implemented for efficient utilization of the MIMO
channel. Efficient IQ-imbalance, DC offset, phase noise, frequency offset, and timing offset compensations are
provided for the radio frequency front-end. Selectable digital transmit and receive FIR filters are provided to
meet transmit spectrum mask requirements and to reject adjacent channel interference, respectively.

The RTL8812AE supports fast receiver Automatic Gain Control (AGC) with synchronous and asynchronous
control loops among antennas, antenna diversity functions, and adaptive transmit power control functions to
obtain better performance in the analog portions of the transceiver.

1 Rev.1.0