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FSC-BW121 Realtek RTL8821CS Wi-Fi5&BT5.3 Module 1T1R Dual-band

FSC-BW121 is a highly integrated 1T1R Dual-band WLAN + Bt 5.3 combo module based on Realtek RTL8821CS chip, suitable for smart home devices and in-vehicle multimedia applications. It supports 1-srteam 802.11.ac solution with Mu-MIMO STA mode, and compatible with 802.11a/b/g/n standard, SDIO 3.0/2.0 interface, HS-UART mixed interface. It supports Dual-mode (BR/EDR + Low Energy) of simultaneously active links. Designed to meet the needs of high-speed wireless applications in vehicles.

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$4.90
  • Wi-Fi:
    • CMOS MAC, Baseband PHY and RF in a single chip for lEEE 802.11a/b/g/n/ac compatible WLAN
    • Maximum PHY data rate up to 86.7Mbps using 20MHz bandwidth, 200Mbps using 40MHz bandwidth
    • IEEE 802.11n/ac OFDM
    • One Transmit and One Receive paths
    • 20MHz/40MHz/80MHz bandwidth transmission
    • Support 2.4Ghz and 5Ghz band channels
    • Short Guard Interval (400ns)
    • Sounding packet
    • DSSS with DBPSK and DQPSK, CCK modulation with long and short preamble
    • OFDM with BPSK, QPSK, 16QAM, 64QAM and 256QAM modulation. Convolutional Coding Rate: 1/2, 2/3, 3/4, and 5/6
    • Maximum data rate 54Mbps in 802.11g, 150Mbps in 802.11n and 433Mbps in 802.11ac
    • Switch diversity used for DSSS/CCK.
    • Support STBC, LDPC, AGC
    • Built-in both 2.4Ghz and 5Ghz PA/LNA
    • Support Wi-Fi Direct, multiple BSSID
  • Bluetooth:
    • Bluetooth 5.3 dual mode compliant
    • HS-UART interface for Bluetooth data transmission compliant with H4 and H5 specification
    • Supports all packet types in basic rate and enhanced data rate
    • Fast AGC control to improve receiving dynamic range
    • Integrated internal Class 1, Class 2, and Class 3 PA
    • suports Enhanced Power Control
  • General:
    • Integrates Realtek RTL8821CS chip
    • 17mm × 17mm stamp 56-pin package
    • External Antenna
    • Support installing on-board Ipex connector
    • Supports Android/Linux/FreeRTOS
    • Host interface:
      • Wi-Fi: PCIe v1.1 with LTR/L1.Off state support
      • Bluetooth: HS-UART/PCM
Wi-Fi
Standard Wi-Fi 5 (IEEE 802.11 a/b/g/n/ac)
Frequency 2.4 GHz / 5 GHz
Modes STA, AP, Wi-Fi direct (P2P)
Protocols TCP/IP stack, TCP, UDP, HTTP, MQTT, other custom protocols
Antenna Connect to external Feasycom antenna or other antenna

Support installing on-board Ipex connector

 

 

Bluetooth
Standard Bluetooth 5.3 (BR/EDR & LE)
Profiles HFP, A2DP, AVRCP, SPP, PBAP, HID, DUN, FTP, GATT, iAP2, ANCS, other custom profiles
Antenna Connect to external Feasycom antenna or other antenna

Support installing on-board Ipex connector

 

 

General
Chip Realtek RTL8821CS
Dimension (mm) 17 × 17 × 2.4
Interfaces SDIO, UART, PCM
Operating Temperature Default: -40°C ~ +85°C

BW121D/BW121DI: 0°C ~ +70°C
Storage Temperature -40°C ~ +85°C
Supply Voltage VDD: 3.0V ~ 3.6V
VDD_IO: 1.62V ~ 3.6V
Car AV System
Consumer Electronics
Industrial Automation
Smart Cities
Casa intelixente
Datasheet