Datasheet Module Name：FLW3881VSA7-A Manufacture：Jiang Su Fulian Communication Technology Co., Ltd Approved Verify Draw Version Date V1.0 2021.03.
一、 Version Date time Version 2021-03-01 V1.
1.1. Overview Hi3881 V100 is a highly integrated 2.4 GHz Wi-Fi station chip that packs the IEEE 802.11b/g/n baseband and RF circuit. The RF circuit consists of the power amplifier (PA), low noise amplifier (LNA), RF balun, antenna switch, and power management module. 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.
1.2. Key Specifications General Specifications 1x1 2.4 GHz frequency band (channels 1–14) Wi-Fi station PHY supporting IEEE 802.11b/g/n MAC supporting IEEE802.11 d/e/h/i/k/v/w Built-in PA and LNA, integrated with TX/RX switch and balun Station (STA) and access point (AP) modes, up to six STAs as an AP WFA WPA, WFA WPA2 personal, and WPS2.0 2/3/4-line PTA solution with BT and BLE UNABLE Input voltage range: 2.3–3.6 V I/O power voltage: 1.8 V or 3.
QoS CPU Subsystem High-performance 32-bit microprocessor with a maximum operating frequency of 160 MHz Built-in 352 KB SRAM and 288 KB ROM 1.3. specification Item Parameter Description Module Name FLW3881VSA7-A Type WLAN 11n SDIO 1T1R module Chip Hi3881V100 Stand 802.11b/g/n Physical frequency band 2.4~2.4835 GHz Support OS Windows2000,XP,Vista,Win7,Linux, Mac，Android，Win CE Safety WEP, TKIP, AES, WPA, WPA2 Interface SDIO1.1/2.0 兼容 Power Supply DC3.3V （最小 3.0V-最大 3.
1.4. Functional Block Diagram confidential 图 1. FLW3881VSA7-A 硬件框图 1.5. Dimension 图 2.
1.6. Pin description 表1 1.7. Index 1-3 4 5 6 Pin Name GND VBAT NC VDDIO 7 8 9 10 11 12 13 14 15 16-19 GND CHIP_EN GPIO02 SD_D2 SD_D3 SD_CMD SD_CLK SD_D0 SD_D1 GND Pin description GND 3.3V NC 1.8-3.3V,IO Supply,Max3.6V GND Chip EN WL_DEV_WAKE_HOST SD_D2 SD_D3 SD_CMD SD_CLK SD_D0 SD_D1 GND Secondary reflow soldering temperature curve 图 3.
1.8. Packing It is shipped in reel packaging, which is convenient for customers to SMT, built-in humidity card and desiccant, vacuumed in electrostatic bags, and packaged in cartons for shipment. Both the reel and the outer box are affixed with factory notes and check out QR codes for easy tracking . 图 4. FLW3881VSA7-A Packing 1.9. Sales and technical support information If you need to consult or purchase this product, please call Jiangsu Fulian Communication Technology Co., Ltd. during office hours.
FCC Statement FCC standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 Integral antenna , Antenna gain 1dBi This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
—Reorient or relocate the receiving antenna. —Increase the separation between the equipment and receiver. —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. —Consult the dealer or an experienced radio/TV technician for help. 2. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
