Ferex Electronic RTL8188ETV WIFI MODULE User Manual
Shenzhen Ferex Electronic Co., Ltd WIFI MODULE
User Manual
RTL8188ETV
SINGLE-CHIP IEEE 802.11b/g/n 1T1R WLAN
DATASHEET
(CONFIDENTIAL: Development Partners Only)
Rev. 0.1
3 Aug 2012
Track ID:
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
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RTL8188ETV
Datasheet
Single-Chip IEEE 802.11b/g/n 1T1R WLAN Controller
with USB Interface
ii Track ID: JATR-2265-11 Rev. 0.5
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. 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.
REVISION HISTORY
Revision Release Date Summary
0.1 2012/08/03 Preliminary release
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RTL8188ETV
Datasheet
Single-Chip IEEE 802.11b/g/n 1T1R WLAN Controller
with USB Interface
iii Track ID: JATR-2265-11 Rev. 0.5
Table of Contents
1.GENERAL DESCRIPTION ............................................................................................................... ......... ......... ........ 1
2.FEATURES ..... ...... ...... ...... ...... ..... ...... ...... ...... ...... ...... ...... ..... ...... ...... ...... ...... ...... ...... ...... .......................... ......... ......... .. 3
3.APPLICATION DIAGRAM ........................................................................................................................................ 5
3.1.SINGLE-BAND 11N (1X1) SOLUTION WITH SINGLE ANTENNA ....................................................................................... 5
3.2.SINGLE-BAND 11N (1X1) SOLUTION WITH DUAL ANTENNA DIVERSITY ........................................................................ 6
3.3.SINGLE-BAND 11N (1X1) SOLUTION WITH DUAL ANTENNA ......................................................................................... 6
4.PIN ASSIGNMENTS ................................................................................................................................... ................. 7
4.1.PACKAGE IDENTIFICATION .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. ... ... ... ... ... ... ... ... ........... 7
5.PIN DESCRIPTIONS .............................................................................................................................................. ..... 7
5.1.USB BUS TRANSCEIVER INTERFACE .......................................................................................................................... 8
5.2.POWER PINS ............................................................................................................................................... ......... ..... 8
5.3.RF INTERFACE ..................................................................................................................................... ......... ......... .. 8
5.4.LED INTERFACE............................................................................................................................................ ......... .. 9
5.5.CLOCK AND OTHER PINS ............................... ......... ......... ........ ......... .................................... ........ ......... .................. 10
6.ELECTRICAL AND THERMAL CHARACTERISTICS ........................................................................................ 11
6.1.TEMPERATURE LIMIT RATINGS .... ... ... ... ... ... ... ... ... ... ... ... ... ... .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. ... ... ... ... ... ... ... ... ... ... ... 11
6.2.DC CHARACTERISTICS .......... ......... ......... ......... ......... ........ ......... ......... ......... ......... ......... ........ ......... ......... ............... 11
6.2.1.Power Supply Characteristics ..................................................................................................... .................. 11
6.2.2.Digital IO Pin DC Characteristics ................................................................................................................. 11
7.INTERFACE TIMING SPECIFICATION ................................................................................................................ 13
7.1.USB BUS DURING POWER ON SEQUENCE ................................................................................................................. 13
8.MECHANICAL DIMENSIONS ................................................................................................................................. 14
8.1.MECHANICAL DIMENSIONS NOTES .. ... ... ... ... ... ... ... ... ... ... ... ... .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. ... ... ... ... ... ... ... ... ... ... 14
9.ORDERING INFORMATION ................................................................................................................................... 15
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37
RTL8188ETV
Datasheet
Single-Chip IEEE 802.11b/g/n 1T1R WLAN Controller
with USB Interface
iv Track ID: JATR-2265-11 Rev. 0.5
List of Tables
TABLE 1. USB BUS TRANSCEIVER INTERFACE ......................................................................................................................... 8
TABLE 2. POWER PINS .... ...... ...... ...... ..... ...... ...... ...... ...... ...... ...... ..... ...... ...... ...... ...... ...... ...... ...... ...... ..... ...... ......... ......... ......... .. 8
TABLE 3. RF INTERFACE ...................................................................................................................................................... .. 8
TABLE 4. LED INTERFACE ..................................................................................................................................................... 9
TABLE 5. CLOCK AND OTHER PINS . ... .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. ... ... ... ... ... ... ... ... ............ 10
TABLE 6.TEMPERATURE LIMIT RATINGS ............................................................................................................................ 11
TABLE 7.DC CHARACTERISTICS ........................................................................................................................................ 11
TABLE 8.3.3V GPIO DC CHARACTERISTICS ...................................................................................................................... 11
TABLE 9.2.8V GPIO DC CHARACTERISTICS ...................................................................................................................... 11
TABLE 10.1.8V GPIO DC CHARACTERISTICS .................................................................................................................. 12
TABLE 11.THE TYPICAL TIMING RANGE ............................................................................................................................ 13
TABLE 12.ORDERING INFORMATION ................................................................................................................................ 15
List of Figures
FIGURE 1. SINGLE-BAND 11N (1X1) SOLUTION .......................................................................................................................... 5
FIGURE 2. SINGLE-BAND 11N (1X1) DUAL ANTENNA DIVERSITY SOLUTION .................................................................................. 6
FIGURE 3. SINGLE-BAND 11N (1X1) DUAL ANTENNA SOLUTION .................................................................................................. 7
FIGURE 4. PIN ASSIGNMENTS ............................... ......... ......... ......... ................................... ......... ......... ........ ............ ......... ........ 7
FIGURE 5. RTL8188ETV USB BUS POWER ON SEQUENCE ...................................................................................................... 13
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RTL8188ETV
Datasheet
Single-Chip IEEE 802.11b/g/n 1T1R WLAN Controller
with USB Interface
1 Track ID: JATR-2265-11 Rev. 0.3
1. General Description
The Realtek RTL8188ETV is a highly integrated single-chip 802.11n Wireless LAN (WLAN) network USB
interface (USB 1.0/1.1/2.0 compliant) controller. It combines a WLAN MAC, a 1T1R capable WLAN
baseband, and WLAN RF in a single chip. The RTL8188ETV provides a complete solution for a high
throughput performance integrated wireless LAN device.
The RTL8188ETV WLAN baseband implements Orthogonal Frequency Division Multiplexing (OFDM)
with 1 transmit and 1 receive path and is compatible with the IEEE 802.11n specification. Features include
one spatial stream transmission, short guard interval (GI) of 400ns, spatial spreading, and transmission over
20MHz and 40MHz bandwidth.
For legacy compatibility, Direct Sequence Spread Spectrum (DSSS), Complementary Code Keying (CCK)
and OFDM baseband processing are included to support all IEEE 802.11b and 802.11g 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, and 64QAM modulation of the individual
subcarriers and rate compatible punctured convolutional coding with coding rate of 1/2, 2/3, 3/4, and 5/6,
provide higher data rates of 54Mbps and 150Mbps for IEEE 802.11g and 802.11n OFDM respectively.
The RTL8188ETV WLAN Controller 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.
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 RTL8188ETV WLAN Controller supports fast receiver Automatic Gain Control (AGC) with
synchronous and asynchronous control loops among antennas, antenna diversity functions, and adaptive
transmit power control function to obtain the better performance in the analog portions of the transceiver.
The RTL8188ETV WLAN MAC supports 802.11e for multimedia applications, 802.11i for security, and
802.11n for enhanced MAC protocol efficiency. Using packet aggregation techniques such as A-MPDU with
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RTL8188ETV
Datasheet
Single-Chip IEEE 802.11b/g/n 1T1R WLAN Controller
with USB Interface
2 Track ID: JATR-2265-11 Rev. 0.3
BA and A-MSDU, protocol efficiency is significantly improved. Power saving mechanisms such as Legacy
Power Save, and U-APSD, reduce the power wasted during idle time, and compensates for the extra power
required to transmit OFDM. The RTL8188ETV provides simple legacy and 20MHz/40MHz co-existence
mechanisms to ensure backward and network compatibility.
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RTL8188ETV
Datasheet
Single-Chip IEEE 802.11b/g/n 1T1R WLAN Controller
with USB Interface
3 Track ID: JATR-2265-11 Rev. 0.3
2. Features
General
46-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
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)
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
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Programmable scaling in transmitter and
receiver to trade quantization noise against
increased probability of clipping
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RTL8188ETV
Datasheet
Single-Chip IEEE 802.11b/g/n 1T1R WLAN Controller
with USB Interface
4 Track ID: JATR-2265-11 Rev. 0.3
Peripheral Interfaces
General Purpose Input/Output (7 pins)
Three configurable LED pins
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RTL8188ETV
Datasheet
Single-Chip IEEE 802.11b/g/n 1T1R WLAN Controller
with USB Interface
5 Track ID: JATR-2265-11 Rev. 0.3
3. Application Diagram
3.1.
Single-Band 11n (1x1) Solution with Single Antenna
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