Product Specification V1.0 Revision 2017-4-15 Date BL-M8821CU1 Model Name ProductName IEEE 802.11b/g/n/ac(1T1R) USB WLANAnd BT Module Bilian Approve Field Engineer QC Sales 夏建军 xia@b-link.net.cn 13798358430 Customer Approve Field Engineer QC Manufactory Purchasing Shenzhen Bilian Electronic Co.，Ltd Address: No 268,Fuqian Rd.,JuTang Community ,Guanlan Town,Baoan District, Shenzhen, 518110,PRC Homepage: www.b-link.net.
Table of Contents Revision History ......................................................................................... 1 1. Introduction ..............................................................................................................1 1.1 General Description ............................................................................................ 1 1.2 Features .............................................................................................................. 1 1.
Revision History Document Product Revision Revision 2017/4/6 0.1 V1.0 Preliminary release 2017/4/15 V1.0 V1.0 Ver 1.0 release Date Description 1. Introduction 1.1 General Description BL-M8821CU1 product is a highly integrated single-chip 802.11a/b/g/n/ac 1T1R USB2.0WLAN controller It combines a WLAN MAC, a 1T1R capable WLAN baseband, BT Protocol (LM , LL and LE),BT Baseband, modem, and WLAN/BT RF in a single chip.
1.3 Applications MID IP Camera STB Smart TV E-book Other devices which need to be supported by wireless network 2. Functional Block Diagram Figure 3 BL-M8821CU1 block diagram 3. Product Technical Specifications 3.1 General Specifications Item Description Product Name BL-M8821CU1 Main Chip RTL8821CU-CG Host Interface USB 2.0 IEEE Standards IEEE 802.11a/b/g/n/ac Operating Frequencies 2.4GHz~2.4835GHz /5.15GHz~5.
WiFi: 802.11b: CCK, DQPSK, DBPSK 802.11a/g: 64-QAM,16-QAM, QPSK, BPSK Modulation 802.11n: 64-QAM,16-QAM, QPSK, BPSK 802.11ac: 256-QAM,64-QAM,16-QAM, QPSK, BPSK BT: 8DPSK,π/4DQPSK,GFSK Working Mode Infrastructure, Ad-Hoc WiFi: 802.11b: 1, 2 ,5.5,11Mbps 802.11a/g: 6,9,12,18,24,36,48,54Mbps 802.11n: HT20 reach up to144.4Mbps, HT40 reach up to300Mbps Wireless Data Rate 802.11ac: VHT20 reach up to 173.3Mbps, VHT40 reach up to 239Mbps, VHT80 reach up to 433.
TX mode 375 404 350 420 Rxmode 80 104 80 104 6Mbps 802.11g 54Mbps Supply current Typ. Max. Typ. Max. TX mode 325 388 240 376 Rxmode 85 112 86 116 MCS0 802.11n HT20 MCS7 Supply current Typ. Max. Typ. Max. TX mode 320 380 239 372 Rxmode 87 112 88 116 MCS0 802.11n HT40 MCS7 Supply current Typ. Max. Typ. Max. TX mode 286 352 215 360 Rxmode 89 116 90 120 6Mbps 802.11a 54Mbps Supply current Typ. Max. Typ. Max.
2.4G: 802.11b: <-22dB@11Mbps 802.11g: <-28dB@54Mbps 802.11n-HT20: <-28dB@72.2Mbps 802.11n-HT40:< -28dB@150Mbps TX Constellation Error(EVM) 5G: 802.11a: <-28dB@54Mbps 802.11n-HT20: <-28dB@72.2Mbps 802.11n-HT40: <-28dB@150Mbps 802.11ac:< -33dB@433Mbps 1Mbps: -96dBm@PER<8%; 11Mbps:-90dBm@PER<8%; Receiver Minimum Input Sensitivity@PER 54Mbps:-72dBm@PER<10%; 150Mbps:-69dBm@PER<10%; 433Mbps:-59dBm@PER<10%; RFTest Report PathA 2.
e 11a Mbps) CH 36 CH 100 9 13.56 14 .02 54 14 .29 14.86 CH 140 CH 161 CH 36 CH100 CH140 CH161 CH 36 CH 100 CH 140 CH 161 14 .22 14 .08 -24.32 -26.25 -24.10 -24.93 -90 -90 -90 -90 14.60 14 .48 -29.62 -31.00 -30.43 -30.92 -74 -74 -74 -74 Power(dBm) Mod e Rate( Mbps) 11n CH 38 CH 102 MCS0 12.75 12.63 40 MCS7 12.44 12.48 Mod e Rate( Mbps) EVM(dB) CH 142 CH 159 CH 38 CH102 CH142 CH159 CH 38 CH 102 CH 142 CH 159 12.76 12.99 -25.09 -27.21 -26.
4.
3 RF_1 I/O 2G WIFI ANT 4 GND P Ground 5、6、7、8 NC / Floating(Don’t connected to ground 9 BT_WAKE_H OST O Bluetooth device to wake up HOST 10 HOST_WAKE _BT I HOST to wake up Bluetooth device 11 VIN P VDD3.
WPS Circuit RF reference circuit Figure 5 Typical application circuit NOTE： 1、RF trace need to keep 50 ohm impedance. 2、USB differential pair need to keep 90ohm impedance.
3、C1 10uF closed to Module pin 11 4、Reserved 0R between Module pin 16 pin 17 and Host 6. Mechanical Specifications Module dimension: Typical ( L*W * H): 13.0mm*12.2mm*1.5mm Figure 6 Module dimension 10 Tolerance : +/-0.
7. Others 7.1 Package Information Figure 7 Package Information 7.2 Storage Temperature and Humidity 1. Storage Condition: Moisture barrier bag must be stored under 30℃, humidity under 85% RH. The calculated shelf life for the dry packed product shall be a 12 months from the bag seal date. Humidity indicator cards must be blue, <30%. 2.Products require baking before mounting if humidity indicator cards reads > 30% temp < 30℃, humidity < 70% RH, over 96 hours. Baking condition: 125℃, 12 hours.
FCC Statement This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this de vice may not cause harmful interference, and (2) this device must accept any interference received, including i nterference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s au thority to operate the equipment.
