12. ENVIRONMENTAL REQUIREMENTS AND SPECIFICATIONS.....................................................................26
COMPANY CONFIDENTIAL
1. Revision History
Date Change Note
2010-06-17 Initial Release 1.0
REV
Note
COMPANY CONFIDENTIAL
2. Introduction
Project Name: 802.11 b/g/n wireless card
This documentation describes the product specification of the 802.11b/g/n WiFi Module.
It is Compliant with IEEE Std 802.11b-1999, IEEE Std 802.11g-2003 and IEEE Std
802.11n-2009. It is a confidential document of Foxconn.
2.1 Scope
This 802.11 b/g/n Module is available in the 2.4-GHz ISM band, it is compatible with
the IEEE 802.11 b/g standard and the 802.11n standard. It allow user to switch to
different vendors’ Access Points through the wireless networks and to prevent from
eavesdropping. The 802.11 g data rate provides for 54, 48, 36, 24, 18, 12, 9, 6Mbps,
802.11b data rate provides for 11, 5.5, 2, 1 Mbps, it can also support 11n high data
rate up to MCS7 with PHY data rate to 135Mbps.
2.2 Function
¾ Single stream 802.11 support for both 20MHz and 40MHz (optional) channels provide
PHY layer rates up to MCS7(150Mbps).
¾ Support IEEE 802.15.2 external 3-wire additional co-located wireless technologies
such as Bluetooth, GPS, WiMax or UWB.
¾ Provides a small form factor solution and ultra low power consumption to support low
cost requirement.
¾ Host interface supports USB, SDIO is not used in this product.
COMPANY CONFIDENTIAL
3. Product Specification
3.1 WiFi RF Specification
Wireless LAN Standards IEEE 802.11 b/g/n standard
Operating Frequency 2.400 – 2.4835 GHz
WLAN Data Rate 802.11g: 54Mbps with fall back of 48, 36, 24, 18,
12, 9, 6Mbps.
802.11b: 11Mbps with fall back rates of 5.5, 2,
and 1Mbps
802.11n: Data Rate (MCS0~MSC7) refer to Table
A-1 and Table A-2
These specification indicate levels where permanent damage to the device can occur. Functional
operation is not guaranteed under these conditions. Operation at absolute maximum conditions for
extended can adversely affect long-term reliability of the device.
Rating Symbol Value Unit
DC supply voltage for the device VDD_USB -0.5 to +4.1 V
Maximum chip junction temperature Tj 125 ºC
Recommended Operating Condition
Value Element Symbol
Minimum Typical Maximum
DC supply voltage for the device VDD_USB 3.0 3.3 3.63 V
Function operation is not guaranteed outside this limit, and operation outside this limit for extended
periods can adversely affect long-term reliability of the device.
Unit
COMPANY CONFIDENTIAL
Current Consumption
Standby: typically 120mA @3.3V
Transmit:
802.11b: typically 320mA @3.3V (Tx Power=17.5dbm)
802.11g: typically 310mA@3.3V (Tx Power=14dbm)
802.11n: typically 315mA@3.3V (Tx Power=14dbm)
Receive: typically 220mA @3.3V
4. Product Requirements and Characteristic
4.1 Hardware Characteristic
Form factor 44.5x40(mm2) module with 2x4 pin connector
Host Interface USB 2.0
PCB 4-layer single side
Antenna &RF connector Two printed Antenna, with one for diversity.
One U.FL switched RF connector for testing and can be also used
for external antenna
4.2 Hardware Architecture
This 802.11b/g/n device is operating at 2.4 GHz ISM band, it supports 20 MHz and 40 MHz
(optional) channels.
The WiFi design is based on Broadcom BCM4319 chipset.
The Broadcom BCM4319 is a highly integrated single chip solution for 2.4GHz 802.11n-ready wireless
local area network that enables a high performance 1X1 configuration for wireless station maximum
throughput and range, it integrated a multi-protocol MAC, baseband processor, ADC and DAC
converters, 1X1 radio transceiver, RF switch in all-CMOS device.
Pin No. Pin Name Description Pin No. Pin Name Description
1 VDD_USB Power supply for the
device, 3.3 typically.
3 GND Ground 4 GND Ground
5 USB_DP USB differential positive 6 USB_DM USB differential negative
7 WL_REG_ON Enable/disable power the
internal regulators
2 VDD_USB Power supply for the
device, 3.3 typically.
8 GND Ground
Notice:
WL_REG_ON is used by PMU to enable/disable power the internal regulators, ViH=1.6V, maximum=3.6V.
When WL_REG_ON is low (<1.2(1-20%)=0.96V) or the voltage at VDDIO is less than 0.96V, all six internal
regulators are powered down.
When WL_REG_ON is high (>1.6V) and the voltage at VDDIO is greater than 1. 6V, the CBUCK, LDO2p5V,
CLDO, and LNLDO1 regulators are powered on default.
The voltage at WL_REG_ON should not exceed 3.6V.
There’s a 200Kȍ internal pull-down on WL_REG_ON.
In normal operation mode, WL_REG_ON is pulled-high to 3.3V; and when the device is not needed in the
system, WL_REG_ON should be driven low while VDDIO remains powered, which is called Low-Power
shutdown mode.
5. Antenna Specification
The antennas are PCB printed antenna, its pattern show as below.
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