Product Specification Revision V1.1 Date 2019-07-15 Model Name Product Name BL-M8821CU1 IEEE 802.11a/b/g/n/ac(1T1R) USB WIFI+BT Combo Module Bilian Approve Field Engineer QC Sales Can Zhang Customer Approve Field Engineer QC Manufactory Purchasing Shenzhen Bilian Electronic Co., Ltd Address: 10-11F, Building A1, Huaqiang idea park, Guangming district, Shenzhen.Guangdong, China 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 2017/04/06 0.1 V0.1 Preliminary release 2017/09/26 1.0 V1.0 Update the product pictures 2019/06/18 1.1 V1.1 Revise the descriptive error and the dimension of product Date Description 1. Introduction 1.1 General Description BL-M8821CU1 is the module designed by a highly integrated IEEE 802.11a/b/g/n/ac MAC/Baseband/RF WLAN and Bluetooth Baseband/RF 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 BT:2.402~2.48GHz(BT) 2.4GWIFI:2.412~2.
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 to72.2Mbps, HT40 reach up to150Mbps Wireless Data Rate 802.11ac: MCS0~8, VHT20 reach up to 173.3Mbps, VHT40 reach up to 239Mbps, MCS0~9, VHT80 reach up to 433.
802.11g 6Mbps 54Mbps Supply current Typ. Max. Typ. Max. TX mode 325 388 240 376 Rx mode 85 112 86 116 802.11n HT20 MCS0 MCS7 Supply current Typ. Max. Typ. Max. TX mode 320 380 239 372 Rx mode 87 112 88 116 802.11n HT40 MCS0 MCS7 Supply current Typ. Max. Typ. Max. TX mode 286 352 215 360 Rx mode 89 116 90 120 802.11a 6Mbps 54Mbps Supply current Typ. Max. Typ. Max. TX mode 340 420 270 380 Rx mode 90 120 91 124 802.
802.11n-HT20: <-28dB@72.2Mbps 802.11n-HT40:< -28dB@150Mbps 5G: 802.11a: <-28dB@54Mbps 802.11n-HT20: <-28dB@72.2Mbps 802.11n-HT40: <-28dB@150Mbps 802.
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5、6、7、8 NC / Floating(Don’t connected to ground 9 BT_WAKE_HOST O Bluetooth device to wake up HOST 10 HOST_WAKE_BT I HOST to wake up Bluetooth device 11 VIN P VDD 3.
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 5、LED active low. Recommended alternatives or upgrades If you just use WiFi (only connect the pin 1/2/11/12/13/14), you can replace it with the following solution: BL-R7601MU2 / BL-R8188EU1 / BL-R8801MU2 Details please refer to : www.b-link.net.
6. Mechanical Specifications Module dimension: Typical ( L*W * H): 13.0mm*12.2mm*1.50mm Figure 6 Module dimension 7. Others 7.1 Package Information Figure 7 Package Information 9 Tolerance : +/-0.
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. Baking times: 1 time. 7.
FCC Statement This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) thi s device may not cause harmful interference, and (2) this device must accept any interference received, incl uding interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user’ s authority to operate the equipment.
Integration instructions for host product manufacturers according to KDB 996369 D03 OEM Manual v01 2.2 List of applicable FCC rules CFR 47 FCC PART 15 SUBPART C has been investigated. It is applicable to the modular transmitter 2.3 Specific operational use conditions This module is stand-alone modular.
