Hi3881 WiFi 2.4G Module 3181A-S Wi-Fi Single-band 1X1 802.11b/g/n SDIO Module

• Type: WiFi Module
• Work Mode: AP+STA
• WiFi Antenna Type: External
• Transmission Rate: <100Mbps
• Voltage: 3.3V
• Antenna Gain: dB
• Model NO.: 3181A-S
• Color: Green
• Certification: ISO9001
• Dimension: L x W x H: 12 x 12 x 2.3 mm (with shielding)
• Dimension 2: L x W x H: 12 x 12 x 1.7 mm (no shielding)
• Wi-Fi Interface: Support SDIO V2.0
• Chipset: Hi3881
• Transport Package: Tray or Reel
• Specification: WiFi Single-band 1T1R 2.4G SDIO 2.0
• Trademark: Fn-Link
• Origin: China
• HS Code: 8517629900
• Production Capacity: 100000000

Product Description

1.Introduction
 

3181A-S is a highly integrated 2.4 GHz Wi-Fi module that support the IEEE 802.11b/g/n baseband and RF circuit. It supports 20 MHz standard bandwidth and 5 MHz/10 MHz narrow bandwidth, and provides a physical layer rate up to 72.2 Mbit/s. Wi-Fi baseband supports the orthogonal frequency division multiplexing (OFDM) technology and is backward compatible with the direct sequence spread spectrum (DSSS) and complementary code keying (CCK) technologies, offering various data rates defined in the IEEE 802.11 b/g/n protocol. Module chipset including the SPI, UART, I2C, PWM, GPIO, and multi-channel ADC. In addition, it provides high-speed SDIO2.0 slave interfaces, with clock frequency up to 50 MHz.

 

2. Features

 

Operate at ISM frequency bands (2.4GHz)
Maximum rate of 72.2 Mbit/s@HT20 MCS7
SDIO interface for Wi-Fi
High transmitting power
High receiving sensitivity
PHY supporting IEEE 802.11b/g/n
MAC supporting IEEE802.11 d/e/h/i/k/v/w
WFA WPA, WFA WPA2 personal, and WPS2.0 for Wi-Fi


3. Block Diagram


 

4. Ordering Information
 

Part No.	Description
FG3181ASXX-00	Hi3881, b/g/n Wi-Fi, 1T1R, 12X12mm, SDIO, PCB V1.0 Halogen Free,with shielding,TVS.
FG3181ASXX-01	Hi3881, b/g/n Wi-Fi, 1T1R, 12X12mm, SDIO, PCB V1.0 Halogen Free,no shielding, LDO,TVS,all cap
FG3181ASXX-02	Hi3881, b/g/n Wi-Fi, 1T1R, 12X12mm, SDIO, PCB V1.0 Halogen Free,no shielding, LDO,TVS,all cap
FG3181ASXX-03	Hi3881,b/g/n ,1T1R,12X12mm ,SDIO2.0,no shielding,LDO Version, (new HDK)