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FSC-BW127 RTL8852BS Small-Size Wi-Fi 6 + BT 5.2 Module

FSC-BW127 is a low-cost, low-power consumption module that integrates all Wi-Fi functionalities, compliant with IEEE 802.11 a/b/g/n/ac/ax MAC/Baseband/RF WLAN standards. It supports 2×2 MIMO with speeds up to 1201 Mbps in 802.11ax, offering SDIO 3.0 for Wi-Fi and UART/PCM interfaces for Bluetooth. This highly integrated module is a comprehensive solution for combining Wi-Fi and Bluetooth V5.2 technologies, making it ideal for developers looking to add wireless capabilities to portable devices.

General Features

  • Highly integrated wireless local area network (WLAN) system-on-chip (SOC) for 802.11 a/b/g/n/ac/ax WLAN applications
  • Backward compatible with 802.11 a/n/ac devices while operating at 802.11ax data rates
  • Support 802.11ax 2×2, with OFDMA and MU-MIMO, by 4 types PPDU format, such as HE-SU-PPDU, HE-ER-SU-PPDU, HE-MU-PPDU, and HE-TB-PPDU
  • Complete 802.11n MIMO solution for 2.4GHz and 5GHz band
  • Maximum PHY data rate up to 286.8 Mbps using 20MHz bandwidth, 573.5 Mbps using 40MHz bandwidth, and 1201 Mbps using 80MHz bandwidth
  • Backward compatible with 802.11 a/b/g devices while operating at 802.11n data rates
  • Backward compatible with 802.11 a/n/ac devices while operating at 802.11ax data rates

Host Interfaces

  • Complies with SDIO 1.1/2.0/3.0 for WLAN with clock rate up to 208 MHz
  • Complies with HS-UART with configurable baud rate for Bluetooth

Bluetooth Features

  • Supports Bluetooth 5.2 system (BT 5.2 Logo Compliant)
  • Supports WLAN/Bluetooth coexistence
  • Compatible with Bluetooth v2.1+EDR
  • Dual Mode support: Simultaneous LE and BR/EDR
  • BT host digital interface: HCI UART & PCM for audio data

PHY Features

  • IEEE 802.11ax MIMO OFDM/OFDMA
  • IEEE 802.11ac MIMO OFDM
  • IEEE 802.11n MIMO OFDM
  • Two Transmit and Two Receive paths
  • 20MHz/40MHz/80MHz bandwidth transmission
  • Support 2.4GHz and 5GHz band channels
  • DSSS with DBPSK and DQPSK, CCK modulation with long and short preamble
  • OFDM with BPSK, QPSK, 16QAM, 64QAM, 256QAM, and 1024QAM modulation
  • Convolutional Coding Rate: 1/2, 2/3, 3/4, and 5/6
  • Maximum data rate 54 Mbps in 802.11g, 300 Mbps in 802.11n, 866.7 Mbps in 802.11ac, 1201 Mbps in 802.11ax
  • OFDM/DSSS/CCK receive diversity with MRC using up to 2 receive paths
  • Support STBC
  • Support LDPC
  • Maximum-Likelihood Detection (MLD)
  • Fast receiver Automatic Gain Control (AGC)

Applications

  • Audio and video system
  • Measurement systems
  • PND

Specifications

Categories Features Implementation
Bluetooth
Bluetooth Standard Bluetooth V5.2
Frequency Band 2.402 ~ 2.480 GHz
Interfaces UART, PCM
Modulation GFSK, π/4-DQPSK, 8-DPSK
Transmit Power +8 dBm (Max.)
Receive Sensitivity -92 dBm (Min.)
Wi-Fi 2.4GHz
WLAN Standard IEEE 802.11 b/g/n/ac/ax Wi-Fi compliant
Frequency Range 2.400 ~ 2.497 GHz (2.4 GHz ISM Band)
Number of Channels 2.4GHz:Ch1 ~ Ch14
Interface SDIO
Output Power 802.11b / 11Mbps: +19 dBm ± 2 dB, EVM ≤ -10 dB
802.11g / 54Mbps: +18 dBm ± 2 dB, EVM ≤ -25 dB
802.11n / MCS7: +17 dBm ± 2 dB, EVM ≤ -28 dB
802.11ac vHT20 MCS8: +16 dBm ± 2 dB, EVM ≤ -30 dB
802.11ac vHT40 MCS9: +15 dBm ± 2 dB, EVM ≤ -32 dB
802.11ax HE20 MCS11: +13 dBm ± 2 dB, EVM ≤ -35 dB
802.11ax HE40 MCS11: +13 dBm ± 2 dB, EVM ≤ -35 dB
SISO Receive Sensitivity
(11b, 20 MHz) @ 8% PER
1Mbps PER @ -94 dBm, EVM ≤ -83 dB
11Mbps PER @ -85 dBm, EVM ≤ -76 dB
SISO Receive Sensitivity
(11g, 20 MHz) @ 10% PER
6Mbps PER @ -90 dBm, EVM ≤ -85 dB
54Mbps PER @ -71 dBm, EVM ≤ -68 dB
SISO Receive Sensitivity
(11n, 20 MHz) @ 10% PER
MCS=0 PER @ -90 dBm, EVM ≤ -85 dB
MCS=7 PER @ -69 dBm, EVM ≤ -67 dB
SISO Receive Sensitivity
(11n, 40 MHz) @ 10% PER
MCS=0 PER @ -87 dBm, EVM ≤ -82 dB
MCS=7 PER @ -66 dBm, EVM ≤ -64 dB
SISO Receive Sensitivity
(11ac, 20 MHz) @ 10% PER
MCS=0 PER @ -90 dBm, EVM ≤ -82 dB
MCS=8 PER @ -66 dBm, EVM ≤ -60 dB
SISO Receive Sensitivity
(11ac, 40 MHz) @ 10% PER
MCS=0 PER @ -87 dBm, EVM ≤ -79 dB
MCS=9 PER @ -59 dBm, EVM ≤ -55 dB
SISO Receive Sensitivity
(11ax, 20 MHz) @ 10% PER
MCS=0 PER @ -90 dBm, EVM ≤ -74 dB
MCS=11 PER @ -60 dBm, EVM ≤ -52 dB
SISO Receive Sensitivity
(11ax, 40 MHz) @ 10% PER
MCS=0 PER @ -87 dBm, EVM ≤ -71 dB
MCS=11 PER @ -57 dBm, EVM ≤ -49 dB
Wi-Fi 5GHz
WLAN Standard IEEE 802.11a/n/ac/ax, Wi-Fi compliant
Frequency Range 5.15 ~ 5.850 GHz (5GHz ISM Band)
Interface SDIO
Output Power 802.11a / 54Mbps: +18 dBm ± 2 dB, EVM ≤ -25 dB
802.11n / MCS7: +17 dBm ± 2 dB, EVM ≤ -28 dB
802.11ac vHT20 MCS8: +16 dBm ±2 dB, EVM ≤ -30 dB
802.11ac vHT40 MCS9: +15 dBm ±2 dB, EVM ≤ -32 dB
802.11ac vHT80 MCS9: +15 dBm ±2 dB, EVM ≤ -32 dB
802.11ax HE20 MCS11: +13 dBm ±2 dB, EVM ≤ -35 dB
802.11ax HE40 MCS11: +13 dBm ±2 dB, EVM ≤ -35 dB
802.11ax HE80 MCS11: +13 dBm ±2 dB, EVM ≤ -35 dB
SISO Receive Sensitivity
(11a, 20 MHz) @ 10% PER
6Mbps  PER @ -90 dBm, EVM ≤ -85 dB
54Mbps  PER @ -71 dBm, EVM ≤ -68 dB
SISO Receive Sensitivity
(11n, 20 MHz) @ 10% PER
MCS=0  PER @ -90 dBm, EVM ≤ -85 dB
MCS=7  PER @ -69 dBm, EVM ≤ -67 dB
SISO Receive Sensitivity
(11n, 40 MHz) @ 10% PER
MCS=0  PER @ -87 dBm, EVM ≤ -82 dB
MCS=7  PER @ -66 dBm, EVM ≤ -64 dB
SISO Receive Sensitivity
(11ac, 20 MHz) @ 10% PER
MCS=0, NSS1  PER @ -90 dBm, EVM ≤ -82 dB
MCS=8, NSS1  PER @ -66 dBm, EVM ≤ -60 dB
SISO Receive Sensitivity
(11ac, 40 MHz) @ 10% PER
MCS=0, NSS1  PER @ -87 dBm, EVM ≤ -79 dB
MCS=9, NSS1  PER @ -59 dBm, EVM ≤ -55 dB
SISO Receive Sensitivity
(11ac, 80 MHz) @ 10% PER
MCS=0, NSS1  PER @ -84 dBm, EVM ≤ -79 dB
MCS=9, NSS1  PER @ -56 dBm, EVM ≤ -54 dB
SISO Receive Sensitivity
(11ax, 20 MHz) @ 10% PER
MCS=0   PER @ -90 dBm, EVM ≤ -74 dB
MCS=11  PER @ -60 dBm, EVM ≤ -52 dB
SISO Receive Sensitivity
(11ax, 40 MHz) @10% PER
MCS=0   PER @ -87 dBm, EVM ≤-71 dB
MCS=11  PER @ -57 dBm, EVM ≤ -49 dB
SISO Receive Sensitivity
(11ax, 80 MHz) @ 10% PER
MCS=0   PER @ -84 dBm, EVM ≤ -68 dB
MCS=11  PER @ -54 dBm, EVM ≤ -46 dB
Dimensions (mm) W x L x H 13 × 15 × 2.2 (Height including shielding case)
13 × 15 × 1.8 (Height excluding shielding case)
Operating Temperature 0°C ~ 70°C
Storage Temperature -40°C ~ +85°C
Supply Voltage 3.0V ~ 3.6V (Peak Current: 1.5A)
VDD_IO 1.7V ~ 3.6V (Peak Current:200mA)
Miscellaneous Lead Free
Warranty
Lead-free and RoHS compliant
One Year
Humidity 10% ~ 90% non-condensing
MSL grade: MSL 3
ESD grade: Human Body Model:  Pass ±2000V, all pins
Charge device model:  Pass ±250V, all pins

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