IEEE 802.11 a/b/g/n 300Mbps WiFi Module Product Specifications Model: GWF-4M02 Version: 1.1 2015-12-15 Information in this document is subject to change without prior notice.
1. Introduction The GWF-4M02 is a WLAN module supporting IEEE 802.11a/b/g/n standards with 7-pin or 4-pin connector supporting USB2.0 interface. This is a small form factor and low cost compact WLAN module designed for the wireless connectivity. This module operates in 2.4GHz and 5GHz dual band frequency , it applies a highly integrated MAC/BBP and RF/PA/LNA single chip RT5572 with 300Mbps PHY rate supporting. It fully complies with IEEE802.11n draft 3.0 and IEEE802.11a/b/g feature. 2.
Operating Voltage/current 5.0VDC ± 5% ; <350mA @802.11n,HT40 ; or 3.3VDV± 5% <500mA, @802.11n,HT40 5.0VDC ± 5% ; <450mA @802.11a,HT40 ; or 3.3VDV± 5% <630mA, @802.11a,HT40 USB 2.0 Host interface 7-pin or 4-pin, 2.0mm , or 4-pin 2.54 mm pitch pin header Interface Dimensions/Weight 48x18mm / 3.6g 3.2 Block Diagram Figure 1: System Block Diagram of 7 pin GWF-4M02 5.0V WLAN Module 5V/3.3V 2.4G/5GHz Duplexer 3.3V/1.5V Antenna RT5572 Baseband VCC(5.
Figure 3: System Block Diagram of 4 pin GWF-4M02 5.0V WLAN Module 5V/3.3V 2.4G/5GHz Duplexer 3.3V/1.5V Antenna RT5572 Baseband VCC(5.0V) USB Interface DM(DATA-) DP(DATA+) USB Interface GND MAC/ Packet Buffer/ Encrption Engine RF Transmitter Dual Band External antennas LNA 2.412~2.4835GHz 4.915~5.825 GHz RF Receiver PA Antenna 2.4G/5GHz Duplexer 40MHz XTAL Figure 4: System Block Diagram of 4 pin GWF-4M02 3.3V WLAN Module 2.4G/5GHz Duplexer 3.3V/1.5V Antenna RT5572 Baseband VCC(3.
3.3 Mechanical Information 3.3.1 OUTLINE and Connection Interface (Pictures are for reference only) Figure 5: 5.0VDC power input module. Information in this document is subject to change without prior notice.
RF connector at bottom Figure 6: General Dimensions RF connector at top Figure 7: General Dimensions Information in this document is subject to change without prior notice.
3.3.1.1 4-pin 2.54 mm pitch pin header. a). Model: GWF-4M02-50-T-2.54-4-1; GWF-4M02-33-T-2.54-4-1 Figure 8:Bottom side 4–Pin 2.54mm pitch pin header interface. 3.3.1.2 4-pin 2.0 mm pitch pin header a). Model: GWF-4M02-50-T-2.0-4-1; GWF-4M02-33-T-2.0-4-1 Information in this document is subject to change without prior notice.
Figure 10: Bottom side 4–Pin 2.0mm pitch pin header interface. 3.3.1.3 7-pin 2.0 mm pitch pin header and RF connector at top side a). Model: GWF-4M02-50-T-2.0-7-1; GWF-4M02-33-T-2.0-7-1 Information in this document is subject to change without prior notice.
Figure 12: Top side 7–Pin 2.0mm pitch pin header interface. Tips: For details model number, please refer to the ordering information. Information in this document is subject to change without prior notice.
Pin Definition: Pin-out 7-pin 2.0mm pitch pin header 4-pin 2.0 or 2.54mm pitch pin header 1 LED* (Wireless TX status) N/A 2 VCC (3.3 VDC or 5.0VDC) VCC (3.3 VDC or 5.0VDC) 3 U- (USB data+) U- (USB data+) 4 U+ (USB data-) U+ (USB data-) 5 GND (Ground) GND (Ground) 6 RF/TX ON/OFF control N/A 7 WPS control N/A Figure 16: The onboard circuit configuration refer to LED, WPS, TX pinout. Notes: TX or WPS pin is internally pulled up with an onboard 4.7K ohm resistor to 3.3VDC .
3.4 RF F output Co onnection In nformation If the I-P PEX RF conn nection is selected, a 50 ohm externa al antenna co onnects to the e module RF outputt via an I-PEX X MHF recep ptacle (RF co onnector). ( P Part No.: 202 279-001E-01). Figure e 17:The pro ofile of the I-P PEX connecto or Figure 18: Typical RF o output type 3.5 Softtware and system s Info ormation Opera ation System m CPU Suppliier D Driver Linux 2.4/2.
3.6 Ordering information Since there are many different types of pin header might be used, such as: straight pin; 90 degree bend pin; long pin; short pin…, please mention the detail requirement of the pin header when ordering. It can be mentioned by part number or by descriptions.
5 Environment pointer Special Instructions: Since the 5.0GHz operating current is High, in order to ensure that products -10 º C to +50 º C working properly, must be added the heat sink; If the customer wants to have a better product performance, it is necessary to replace the heat sink thermal performance better (The thicker the larger the area the better the thermal performance).
FCC Statement Federal Communication Commission Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
