RTL8191SU-GR
SINGLE-CHIP IEEE 802.11b/g/n 1T2R WLAN CONTROLLER WITH USB 2.0 INTERFACE
DATASHEET
(CONFIDENTIAL: Development Partners Only)
Rev. 1.0 14 May 2009
Track ID: JATR-1076-21
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
COPYRIGHT
RTL8191SU Datasheet
©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. 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 1.0 2009/05/14 First release.
Single-Chip IEEE 802.11b/g/n 1T2R WLAN Controller
with USB 2.0 Interface
ii Track ID: JATR-1076-21 Rev. 1.0
RTL8191SU Datasheet
Table of Contents
1. 2. 3. 4. 5.
GENERAL DESCRIPTION..............................................................................................................................................1 FEATURES.........................................................................................................................................................................2 APPLICATION DIAGRAMS...........................................................................................................................................4 3.1. 4.1. 5.1. 5.2. 5.3. 5.4. 5.5. 5.6. 5.7. 6. 6.1. 6.2. 7. 8. 7.1.
11N SINGLE-BAND 1X2 APPLICATION..........................................................................................................................4 PACKAGE IDENTIFICATION...........................................................................................................................................5 USB TRANSCEIVER INTERFACE...................................................................................................................................6 EEPROM INTERFACE..................................................................................................................................................6 POWER PINS.................................................................................................................................................................7 RF INTERFACE.............................................................................................................................................................7 LED INTERFACE..........................................................................................................................................................7 CLOCK AND OTHER PINS..............................................................................................................................................8 NOT CONNECTED PINS.................................................................................................................................................8 TEMPERATURE LIMIT RATINGS....................................................................................................................................9 DC CHARACTERISTICS.................................................................................................................................................9 MECHANICAL DIMENSIONS NOTES............................................................................................................................11 PIN ASSIGNMENTS.........................................................................................................................................................5 PIN DESCRIPTIONS........................................................................................................................................................6
ELECTRICAL AND THERMAL CHARACTERISTICS.............................................................................................9
MECHANICAL DIMENSIONS.....................................................................................................................................10 ORDERING INFORMATION........................................................................................................................................12
Single-Chip IEEE 802.11b/g/n 1T2R WLAN Controller with USB 2.0 Interface
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RTL8191SU Datasheet
List of Tables
TABLE 1. USB TRANSCEIVER INTERFACE.....................................................................................................................................6 TABLE 2. EEPROM INTERFACE....................................................................................................................................................6 TABLE 3. POWER PINS...................................................................................................................................................................7 TABLE 4. RF INTERFACE...............................................................................................................................................................7 TABLE 5. LED INTERFACE.............................................................................................................................................................7 TABLE 6. CLOCK AND OTHER PINS................................................................................................................................................8 TABLE 7. NOT CONNECTED PINS...................................................................................................................................................8 TABLE 8. TEMPERATURE LIMIT RATINGS......................................................................................................................................9 TABLE 9. DC CHARACTERISTICS...................................................................................................................................................9 TABLE 10. ORDERING INFORMATION............................................................................................................................................12
List of Figures
FIGURE 1. SINGLE-BAND MIMO (1X2) SOLUTION－RTL8191SU-GR (11N 1X2 MAC/BB/RF + PA).........................................4 FIGURE 2. PIN ASSIGNMENTS.........................................................................................................................................................5
Single-Chip IEEE 802.11b/g/n 1T2R WLAN Controller with USB 2.0 Interface
iv Track ID: JATR-1076-21 Rev. 1.0
RTL8191SU Datasheet
1. General Description
The Realtek RTL8191SU-GR is a highly integrated single-chip MIMO (Multiple In, Multiple Out) Wireless LAN (WLAN) USB 2.0 network interface controller complying with the IEEE 802.11n Draft specification 2.0. It combines a MAC, 1T2R capable baseband and RF in a single chip, the RTL8191SU-GR provides a complete solution for a high-performance wireless client.
The RTL8191SU-GR baseband implements Multiple Input, Multiple Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) with one transmit and two receive paths (1T2R). Features include one spatial stream transmissions, short Guard Interval (GI) of 400ns, spatial spreading, and support for both 20MHz and 40MHz channel bandwidth. The RTL8191SU-GR provides spatial stream Space-Time Block Code (STBC) to extend transmission range. As a receiver, extended range and good minimum sensitivity is achieved by having receiver diversity via 2 antennas.
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 the higher data rates of 54Mbps and 300Mbps for IEEE 802.11g and 802.11n MIMO OFDM respectively.
The RTL8191SU-GR 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 RTL8191SU-GR 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.
The RTL8191SU-GR 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 BA and A-MSDU, protocol efficiency is significantly improved. Power saving mechanisms such as Legacy Power Save, U-APSD, and MIMO power saving reduce the power wasted during idle time, and compensate for the extra power required to transmit MIMO OFDM. The RTL8191SU-GR provides simple legacy and 20MHz/40MHz co-existence mechanisms to ensure backward and network compatibility.
Single-Chip IEEE 802.11b/g/n 1T2R WLAN Controller with USB 2.0 Interface
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Track ID: JATR-1076-21 Rev. 1.0
RTL8191SU Datasheet
2. Features
General
CMOS MAC, Baseband MIMO PHY, and
RF in a single chip for IEEE 802.11b/g/n compatible WLAN 1x2 MIMO technology for extended
reception robustness and exceptional throughput 144.4Mbps receive PHY rate and 72.2Mbps
transmit PHY rate using 20MHz bandwidth 300Mbps receive PHY rate and 150Mbps
transmit PHY rate using 40MHz bandwidth Compatible with 802.11n draft 2.0
specification
Backward compatible with 802.11b/g
devices while operating at 802.11n data rates Host Interface
Complies with USB 2.0 Standards Supported
IEEE 802.11b/g/n compatible WLAN IEEE 802.11e QoS Enhancement (WMM) IEEE 802.11h TPC, Spectrum Measurement IEEE 802.11i (WPA, WPA2). Open, shared
key, and pair-wise key authentication services Cisco Compatible Extensions (CCX4) MAC Features
Frame aggregation for increased MAC
efficiency (A-MSDU, A-MPDU)
Single-Chip IEEE 802.11b/g/n 1T2R WLAN Controller with USB 2.0 Interface
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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 MIMO power saving mechanism Channel management and co-existence Multiple BSSID feature allows the
RTL8191SU to assume multiple MAC identities when used as a wireless bridge Supports Wake-On-WLAN via Magic
Packet and Wake-up frame Transmit Opportunity (TXOP) Short
Inter-Frame Space (SIFS) bursting for higher multimedia bandwidth Peripheral Interfaces
Complies with USB Specification 2.0
Supports Full-speed (12Mbps) and
High-speed (480Mbps)
General Purpose Input/Output (8 pins) 4-wire EEPROM control interface (93C46) Two configurable LED pins Configurable Bluetooth Coexistence
Interface. PHY Features
IEEE 802.11n draft 2.0 MIMO OFDM One Transmit and Two Receive path (1T2R)
Track ID: JATR-1076-21 Rev. 1.0
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
300Mbps in 802.11n.
RTL8191SU Datasheet
OFDM receive diversity with MRC using up
to 2 receive paths. Switch diversity used for DSSS/CCK. Hardware antenna diversity.
Selectable digital transmit and 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
Single-Chip IEEE 802.11b/g/n 1T2R WLAN Controller with USB 2.0 Interface
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3. Application Diagrams
3.1. 11n Single-Band 1x2 Application
Figure 1. Single-Band MIMO (1x2) Solution－RTL8191SU-GR (11n 1x2 MAC/BB/RF + PA)
Single-Chip IEEE 802.11b/g/n 1T2R WLAN Controller with USB 2.0 Interface
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RTL8191SU Datasheet
4. Pin Assignments
VD12AVD25EVD18DPDnNCNCNCNCVD12DNCVD33AHSDMHSDPGNDRREFNCGNDLXVD33A
NCNCNCVD33DGPIO4GPIO5VD12DGND
GPIO6/EEDOEEDO
GPIO7/EEDIVAUXEN/EESK
EECSTSSI_0
4847464544434241403938373635343349325051525354555657585960616263641234567893130292827262524GPIO3/BT_PRIGPIO2/BT_STATEGPIO1/WLAN_RXGPIO0/WLAN_ACTGNDNCXOXIVD15AVD18AREXTVD33ALED1LED0ANT_SEL_NANT_SEL_P
RTL8191SULLLLLLL TXXXV65 GND (Exposed Pad)2322212019181710111213141516TX2G_ON0RX2G_IN0RX2G_IP1RX2G_IP0RX2G_IN1TX2G_OP0TRSWN0PAPE0TRSWP0NCNCNCVD33AVD18AVD33AVD18A
Figure 2. Pin Assignments
4.1. Package Identification Green package is indicated by a ‘G’ in the location marked ‘T’ in Figure 2.
Single-Chip IEEE 802.11b/g/n 1T2R WLAN Controller with USB 2.0 Interface
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RTL8191SU Datasheet
5. Pin Descriptions
The following signal type codes are used in the tables:
I: Input
T/S: Tri-State bi-directional input/output pinO/D: Open Drain
O:S/T/S:
P:
Output Sustained Tri-State Power pin
5.1. USB Transceiver Interface Symbol HSDP HSDM
Type IO IO
Table 1. USB Transceiver Interface
Pin No Description 38 High-Speed USB D+ Signal 39 High-Speed USB D- Signal
5.2. EEPROM Interface Symbol
EESK EEDI EEDO EECS
Type O O IO O
Pin No 62 61 60 63
Table 2. EEPROM Interface Description
EESK in 93C46 Programming or Auto-Load Mode EEDI in 93C46 Programming or Auto-Load Mode EEDO in 93C46 Programming or Auto-Load Mode EEPROM Chip Select 93C46 chip select.
Single-Chip IEEE 802.11b/g/n 1T2R WLAN Controller with USB 2.0 Interface
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RTL8191SU Datasheet
5.3. Power Pins Symbol LX VD33A VD12D VD33D VD25E VD18A VD18D VD15A RREF VD12A GND REXT
Type P P P P P P P P P P P P
Table 3. Power Pins
Pin No Description 50 Switching Regulator Output 3, 11, 21, 36, 51 VDD 3.3V for Analog
33, 58 +1.2V (Digital) 55 VDD 3.3V for Digital 35 2.5V Regulator Output 7, 14, 23 VDD 1.8V for Analog 34 VDD 1.8V for Digital 24 Analog 1.5V Regulator Output (Needs Capacitor) 37 External Resistor for Bandgap 40 Analog 1.2V Regulator Output (Needs Capacitor)
28, 41, 49, 59, 65 Ground
22 External Resistor for Bandgap
5.4. RF Interface Symbol
PAPE0 TRSWP0 TX2G_ON0 TX2G_OP0 TRSWN0 RX2G_IP0 RX2G_IN0 RX2G_IP1 RX2G_IN1 ANT_SEL_P ANT_SEL_N TSSI_0
Type O O O O O I I I I O O I
Table 4. RF Interface
Pin No Description 1 2.4GHz Transmit Power Amplifier Power Enable 2 Transmit/Receive Path Select 0 4 RF TX0 Positive Signal 5 RF TX0 Negative Signal 6 Transmit/Receive Path Select 0 8 RF RX0 Positive Signal 9 RF RX0 Negative Signal 15 RF RX1 Positive Signal 16 RF RX1 Negative Signal 17 Antenna Control Positive Signal 18 Antenna Control Negative Signal 64 Transmit Signal Strength Indication from External Power Amplifier
5.5. LED Interface Symbol
LED0, 1
Type O
Table 5. LED Interface
Pin No Description 19, 20 LED Pins (Active Low)
Single-Chip IEEE 802.11b/g/n 1T2R WLAN Controller
with USB 2.0 Interface
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RTL8191SU Datasheet
5.6. Clock and Other Pins Symbol XI XO PDn
Type I O I
Table 6. Clock and Other Pins Pin No Description 25 40MHz OSC Input.
Input of 40MHz Crystal clock reference
26 Output of 40MHz Crystal Clock Reference 48 This Pin can Externally Shutdown the RTL8191SU (no
requirement for Extra Power Switch).
This pin can also support the WLAN Radio-off function with host interface remaining connected.
62 Weakly pull high at power on to indicate the presence of the
auxiliary power on the mainboard. Otherwise, this is for EEPROM autoload.
29 General Purpose Input/Output Pin or Bluetooth Coexistence
WLAN_ACT Pin.
The WLAN_ACT signal indicates when WLAN is either transmitting or receiving in the 2.4GHz ISM band.
30 General Purpose Input/Output Pin or Bluetooth Coexistence
WLAN_RX Pin.
WLAN_RX is an indicator for wireless LAN RX activity.
31 General Purpose Input/Output Pin or Bluetooth Coexistence
BT_STAT Pin.
The BTSTAT signal indicates when normal Bluetooth packets are being transmitted or received.
32 General Purpose Input/Output Pin or Bluetooth Coexistence
BT_PRI Pin.
The BT_PRI signal indicates when a high priority Bluetooth packet is being transmitted or received.
56 General Purpose Input/Output Pin 57 General Purpose Input/Output Pin 60 General Purpose Input/Output Pin or EEPROM Interface EEDO
Signal
61 General Purpose Input/Output Pin or EEPROM Interface EEDI
Signal
VAUXEN/EESK I
GPIO0/WLAN_ACT IO
GPIO1/WLAN_RX IO
GPIO2/BT_STATE IO
GPIO3/BT_PRI IO
GPIO4 GPIO5
GPIO6/EEDO GPIO7/EEDI
IO IO IO IO
5.7. Not Connected Pins Symbol NC
Type -
Table 7. Not Connected Pins Pin No Description 10, 12, 13, 27, Not Connected 42~47, 52 53, 54
Single-Chip IEEE 802.11b/g/n 1T2R WLAN Controller with USB 2.0 Interface
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RTL8191SU Datasheet
6. Electrical and Thermal Characteristics
6.1. Temperature Limit Ratings Parameter
Storage Temperature
Ambient Operating Temperature Junction Temperature
Table 8. Temperature Limit Ratings
Minimum Maximum -55 +125 0 70 0 125
Units
°C °C °C
6.2. DC Characteristics Table 9. DC Characteristics
Symbol Parameter Minimum Typical DVDD33 3.3V I/O Supply Voltage 3.135 3.3 DVDD12 1.2V Core Supply Voltage 1.10 1.2 DVDD18 1.8V Supply Voltage 1.71 1.8
Maximum
3.465 1.32 1.89
Units V V V
Single-Chip IEEE 802.11b/g/n 1T2R WLAN Controller with USB 2.0 Interface
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RTL8191SU Datasheet
7. Mechanical Dimensions
Single-Chip IEEE 802.11b/g/n 1T2R WLAN Controller with USB 2.0 Interface
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RTL8191SU Datasheet
7.1. Mechanical Dimensions Notes
Symbol
Dimension in mm
Dimension in inch
Min Nom Max Min Nom Max
A 0.75 0.85 1.00 0.030 0.034 0.039 A1 0.00 0.02 0.05 0.000 0.001 0.002 A2 0.55 0.65 0.80 0.022 0.026 0.032 A3 0.20REF 0.008REF b 0.18 0.25 0.30 0.007 0.010 0.012 D/E 9.00BSC 0.354BSC D1/E1 8.75BSC 0.344BSC D2/E2 5.25 5.5 5.75 0.206 0.216 0.226 e 0.50BSC 0.020BSC L 0.30 0.40 0.50 0.012 0.016 0.020 θ 0o - 14o 0o - 14o aaa - - 0.15 - - 0.006 bbb - - 0.10 - - 0.004 ccc - - 0.10 - - 0.004 ddd - - 0.05 - - 0.002 eee - - 0.08 - - 0.003 fff - - 0.10 - - 0.004 Note1: DIMENSIONS D1 AND E1 DO NOT INCLUDE MOLD PROTRUSION. Note2: CONTROLLING DIMENSION: MILLIMETER (mm). Note3: REFERENCE DOCUMENT: JEDEC MO-220.
Single-Chip IEEE 802.11b/g/n 1T2R WLAN Controller with USB 2.0 Interface
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RTL8191SU Datasheet
8. Ordering Information
Table 10. Ordering Information
Part Number RTL8191SU-GR
Package
QFN-64, ‘Green’ Package
Status
Engineering Sample
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 Single-Chip IEEE 802.11b/g/n 1T2R WLAN Controller with USB 2.0 Interface
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Track ID: JATR-1076-21 Rev. 1.0
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