RTL8191RU 802.11b/g/n RTL8191RU USB module User’s Manual Rev. 1.0 21 August 2009 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.
RTL8191RU User’s Manual COPYRIGHT ©2009 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.
RTL8191RU User’s Manual Table of Contents 1. GENERAL DESCRIPTION................................................................................................................................................4 2. GENERAL FEATURES ......................................................................................................................................................5 3. BLOCK DIAGRAM ...........................................................................................................
RTL8191RU User’s Manual 1. General Description The Realtek RTL8191RU USB module is a highly integrated MIMO wireless LAN (WLAN) used for high speed wireless local network access. The card is built with a MAC and 1T2R capable RF/baseband single chip RTL8191RU. The RTL8191RU USB module implements multiple input, multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) with 1 transmit and 2 receive paths and is compatible with 802.11n Draft specification 2.0.
RTL8191RU User’s Manual 2. General Features General • Operate at ISM frequency bands (2.4GHz) • IEEE standards support: IEEE 802.11b, 802.11g, draft 802.11n • Universal Serial Bus 2.0 • Enterprise level security which can apply WPA2 certification • 1 transmitter and 2 receivers allow data rates supporting up to 300 Mbps downstream and 150 Mbps upstream PHY rates.
RTL8191RU User’s Manual PHY Features • IEEE 802.11n draft 2.0 MIMO OFDM - 1 transmitter and 2 receivers (1T2R). - 20MHz and 40MHz bandwidth transmission. - Long Guard Interval (800ns). - 1 spatial stream STBC transmission for extended coverage. - Sounding packet. • DSSS with DBPSK and DQPSK, CCK modulations with long and short preamble. • OFDM with BPSK, QPSK, 16QAM, 64QAM, and 256QAM modulations. Convolution coding rate: 1/2, 2/3, 3/4, and 5/6. • Maximum data rate 54Mbps in 802.11g and 150Mbps in 802.11n.
RTL8191RU User’s Manual 3. Block Diagram WPS Push Button LED RTL8191RU NV Memory RX I /Q ADC Ext Interface Antenna A Tx/Rx Matching Circuit 2.4GHz Receiver MAC Configuration Control and Memory 2.4GHz Transceiver 2.4GHz PA TX I /Q Host Interface Baseband (PHY) SPS/LDO Regulators 3.3V USB 2.0 DAC Antenna B Rx Matching Circuit 40MHz Crystal Figure 1. Single Band 11n Application Diagram 7 Rev.1.
RTL8191RU User’s Manual 4. Product specifications 4.1. Universal Serial Bus 2.0 PIN ASSIGNMENT PIN# Pin Name PIN# Pin Name 1 +5.0 V YES 2 USB_D- YES 3 USB_D+ YES 4 GND YES Table 1. Universal Serial Bus Pin Assignment 4.2. Mechanical Figure 2. RTL8191RU USB module Mechanical Specification 4.3. Environmental 4.3.1. Operating Operating Temperature: Relative Humidity: 0 to 70 °C 5-90% (non-condensing) 4.3.2.
RTL8191RU User’s Manual 4.4. Functional Specifications Table 2. Functional Specifications DC 5V from host equipment CCK, DQPSK, DBPSK for DSSS 64QAM, 16QAM, QPSK, BPSK for OFDM MODULATION Technology DSSS, OFDM 802.11b: 11 / 5.5 / 2 / 1Mbps Transfer rate 802.11g: 54 / 48 / 36 / 24 / 18 / 12 / 9 / 6Mbps Draft 802.11n (20MHz, 800ns GI): 65 / 58.5 / 52 / 39 / 26 / 19.5 / 13 / 6.5Mbps Draft 802.11n (40MHz, 800ns GI): 135 / 121.5 / 108 / 81 / 54 / 40.5 / 27 / 13.5Mbps Draft 802.11n (20MHz, 400ns GI): 72.
RTL8191RU User’s Manual received, including interference that may cause undesired operation. FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. IMPORTANT NOTE: FCC Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.
RTL8191RU User’s Manual 2) this device must accept any interference, including interference that may cause undesired operation of the device This device has been designed to operate with an antenna having a maximum gain of 2 dBi. Antenna having a higher gain is strictly prohibited per regulations of Industry Canada. The required antenna impedance is 50 ohms.
RTL8191RU User’s Manual As long as conduction above is met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed (for example, digital device emissions, PC peripheral requirements, etc.). The antenna must be installed such that 20 cm is maintained between the antenna and users.
RTL8191RU User’s Manual Realtek Semiconductor Corp. Headquarters No. 2, Innovation Road II, Hsinchu Science Park, Hsinchu, 300, Taiwan, R.O.C. Tel: 886-3-5780211 Fax: 886-3-5776047 www.realtek.com.tw 13 Rev.1.
