SG901-1059B 802.11 b/g/n Wireless USB Module
Overview
The SG901-1059B is a high speed module supporting
all data rates of the latest standards including Wi-Fi
802.11B/G/N using a USB 2.0 interface. This module’s
high level of interoperability and its low cost is desirable
for high volume applications. The product is suited for
many embedded systems able to support Windows and
Linux OS including high bandwidth applications such as
set top box.
The SG901-1059B WLAN module is designed to
operate in the 2.4GHz ISM frequency band. It utilizes a
highly integrated MAC/BBP and RF single chip RT3070
design with 150Mbps PHY rate support. The module
fully complies with IEEE802.11n draft 3.0 and
IEEE802.11b/g feature sets.
Features
802.11b: 1, 2, 5.5, 11Mbps
802.11g: 6, 9, 12, 24, 36, 48, 54Mbps
802.11n:
º
(20MHz) MCS0-7, up to 72Mbps
º
(40MHz) MCS0-7, up to 150Mbps
OFDM, Peak rate 150Mbps, 90Mbps peak
throughput
Security support for 64/128 WEP, WPA, WPA2,
TKIP, AES
Operates in the 2.4GHz frequency band.
Low Power Consumption
Single antenna configuration; I-PEX receptacle for
external antenna.
FCC Certified
Applications
Personal Digital Assistants (PDA)
Hand-held Data Transfer Devices
Video
IP Cameras
IP set top box
GPS
Internet radio apparatus
Ordering Information
SG901-1059B-3.3-C (connector) – Bulk only
SG901-1059B-5.0-C (connector) – Bulk only
SG901-1059B-3.3-H (header) – Bulk only
SG901-1059B-5.0-H (header) – Bulk only
Eval Kit
Eval Kit
Eval Kit
Eval Kit
SG923-0012-3.3-C
SG923-0012-3.3-H
SG923-0012-5.0-H
SG923-0012-5.0-C
1-800-779-7139
WWW.SAGRAD.COM
DOC#: 914-0030 rev. 4.6
Block Diagram
System Block Diagram of SG901-1059B-5.0 WLAN Module
System Block Diagram of SG901-1059B-3.3 WLAN Module
1-800-779-7139
WWW.SAGRAD.COM
DOC#: 914-0030 rev. 4.6
General Electrical Specifications
Parameter
Absolute Maximum Ratings
USB Supply
Operating Conditions and Input Power Specifications
-0.3
7
V
Test Condition / Comment
Min.
Typ.
Max.
Units
Normal Operating Range
Operating Temperature Range
PC Interface
Plug & Play Compatible
Supply Voltage
SG901-1059B-5.0
SG901-1059B-3.3
Storage Range
-15
-20
USB 2.0/1.1
YES
4.75
3.14
3.3
65
85
8C
8C
5.2
3.48
V
V
RF Characteristics
Parameter
Internal Antenna Impedance
11b, 11Mbps
RX Sensitivity
11g, 54Mbps
(HT20) 11n, MSC7
(HT40) 11n, MSC7
11b, 11Mbps
TX Output Power
11g, 54Mbps
802.11n (HT20)
802.11n (HT40)
CCK
TX Spectral MASK
OFDM
QPSK
BPSK
Preamble Length
Operating Current
3.3V supply, typical association
5V supply, typical association
18
14.5
13.5
13.5
Test Condition / Comment
Min.
Typ.
50
-85
-70
-66
-62
19
16
15
15
PASS
PASS
PASS
PASS
Long/Short
170
110
mA
mA
20
17.5
16.5
16.5
Max.
Units
Ohms
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
Interface Details
Sagrad Part #
Item
Antenna
Host Interface
Connector
Host Interface
Connector
Antenna
Connector
ACESCONN
87213-0600l
SAMTEC
TMM-106-02-L-S
Taoglas
RECE-20279-001E-01
ACESCONN 87214-0600 / 87214-WX
Alt. JST SHR-06V-S-B / SSH-003T-P0.2
Compatible 2mm 1x6 Socket
Application Dependent
IPEX / U.FL Plug
Supplier
Part Number
Mate
Comment
External Antenna via an I-PEX
receptacle (IPEX 20279-001E-01)
6 Pin 1.0mm Pitch Connector.
6 Pin 2.0mm Male Header
IPEX / U.FL Receptacle
SG901-1066
SG901-1059B-xx-C
SG901-1059B-xx-H
SG901-1059B-xx-x
1-800-779-7139
WWW.SAGRAD.COM
DOC#: 914-0030 rev. 4.6
Connector Pin List (Host Interface)
6-pin 1.0mm pitch connector
SIGNAL NAME
VCC (3.3 or 5.0 VDC)
UD-
UD+
GND
LED
TX
PIN NUMBER
1
2
3
4
5
6
DESCRIPTION
Supply
Complementary USB Data
Complementary USB Data
Ground
WLAN TX Active
Low disables RF, internal pullup to 3.3V
NOTES
USB Standard Function
USB Standard Function
USB Standard Function
USB Standard Function
See description below
6-pin 2.0mm pitch male header
SIGNAL NAME
VCC (3.3 or 5.0 VDC)
UD-
UD+
GND
TX
LED
PIN NUMBER
1
2
3
4
5
6
DESCRIPTION
Supply
Complementary USB Data
Complementary USB Data
Ground
Low disables RF, internal pullup to 3.3V
WLAN TX Active
See description below
NOTES
USB Standard Function
USB Standard Function
USB Standard Function
USB Standard Function
The LED blinks at 0.5Hz rate when searching. During TX, the LED blinks at 500Hz. Otherwise, it is off.
An onboard blue LED is driven by the WLAN IC through a 1K resistor. High voltage turns the LED on. The LED pin is
connected between the LED and the resistor and is about 2.8V when the LED is on. An external LED may be
connected between the LED pin and GND with current limited by the 1K resistor. For more than about 1mA of LED
current, a transistor or logic gate will be needed to drive the LED.
Software Information
MIPS:
A 300-400 MIPS CPU can drive the SG901-1059B alone at its maximum performance level. If other network
interfaces are being used in the device, more MIPS will be necessary.
Source Code:
A device driver for the SG901-1059B is included in the Linux kernel under the name rt2800usb. For the very latest
Linux driver, download the compat-wireless package from
http://linuxwireless.org/en/users/Download
Supported Systems:
The SG901-1059B has been tested on:
x86 – Windows XP (32 bit only)
x86 – Linux (32 and 64 bit)
ARM – Linux 32 bit
Security Support
Complete Security Features – WPA/WPA2, 64/128 WEP, TKIP, AES
1-800-779-7139
WWW.SAGRAD.COM
DOC#: 914-0030 rev. 4.6
Mechanical Drawing
6-pin 1.0 mm pitch male connector – Top View
6-pin 2.0 mm pitch male header –Top View
1-800-779-7139
WWW.SAGRAD.COM
DOC#: 914-0030 rev. 4.6
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