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http://www.b-link.net.cn

 

 

Crystal 

1.

 

Introduction

 

8812CU3 is a highly integrated 2*2 dual-band wireless LAN module. It combines a 

WLAN MAC, a 2T2R capable WLAN base band

a dual-band WLAN radio. It supports IEEE 

802.11a/b/g/n/ac standard and provides the highest PHY rate up to 867Mbps, It can offer 
feature-rich wireless connectivity and reliable throughput from an extended distance. 

1.1

 

Features

 

 

Operating Frequencies: 2.4~2.4835GHz and 5.15~5.85GHz 

 

Host Interface is USB2.0 

 

IEEE Standards: IEEE 802.11a/b/g/n/ac 

 

Wireless data rate can reach up to 867Mbps 

 

Connect to external antenna through IPEX connectors 

 

Power 

Supply: VDD 3.3V±0.2V

 

1.2

 

Block Diagram

 

 

 

 
 

2.4/5G 

 

Ant0 

 

Diplexer 

LED 

 

Dual Band 

 

Ant1 

 
 

 

Diplexer 

 

RTL8812CU 

 

 

 

 

 

 
 

1.3

 

General Specifications

 

 

Module Name 

8812CU3 

Chipset 

RTL8812CU-CG 

WiFi Standards 

IEEE802.11a/b/g/n/ac, 2T2R MIMO, 2.4G/5GHz, 867Mbps (Max) 

Host Interface 

USB2.0 

Antenna 

Connect to the external antennas through IPEX connectors 

Dimension 

SMD 12Pins, 27.0*17.8*3.1mm (L*W*H

Tolerance:

±

0.15mm) 

DC-DC 

VDD3.3V 

 

PDN 

GND 

USB_DM- 

2G RF

 

 

5G RF

 

 

 

2G RF

 

 

5G RF

 

 

 

 

Summary of Contents for 8812CU3

Page 1: ...8812CU3 User Manual...

Page 2: ...ac 867Mbps 2T2R WiFi USB Module Revision V1 0 Customer Approval Company Title Signature Date BL link Approval Title Signature Date Revision History Revision Summary Release Date 0 1 Initial release 20...

Page 3: ...Hz and 5 15 5 85GHz Host Interface is USB2 0 IEEE Standards IEEE 802 11a b g n ac Wireless data rate can reach up to 867Mbps Connect to external antenna through IPEX connectors Power Supply VDD 3 3V 0...

Page 4: ...ply 1 GND RF RF Ground 2 NC RF NC Reserved for 2 4 5G ANT1 3 GND RF RF Ground 4 GND RF RF Ground 5 NC RF NC Reserved for 2 4 5G ANT0 6 GND RF RF Ground 7 LED O WiFi_LED Pin Active Low external current...

Page 5: ...its Ambient Operating Temperature 20 25 70 External Antenna VSWR Voltage Standing Wave Ratio 1 7 2 Supply Voltage VDD 3 1 3 3 3 5 V 3 2 Digital I O DC Specifications Symbol Parameter Min Typ Max Units...

Page 6: ...2RX 220 260 mA 5 8G 6Mbps TX RF Test 1TX for 16dBm 390 430 mA 5 8G 6Mbps RX RF Test 1RX 190 210 mA 5 8G 54Mbps TX RF Test 1TX for 16dBm 255 285 mA 5 8G 54Mbps RX RF Test 1RX 210 260 mA 5 8G MCS0 HT20...

Page 7: ...mitter Specifications Ant0 Ant1 TX Rate TX Power TX Power Tolerance EVM 802 11b 1 11Mbps 18dBm 1 5dBm 10dB 802 11g 6Mbps 16dBm 1 5dBm 10dB 802 11g 54Mbps 16dBm 1 5dBm 25dB 802 11n HT20_MCS0 16dBm 1 5d...

Page 8: ...bps 802 11ac VHT20 MCS0 MCS8 1T1R_SISO 6 5 86 7Mbps 802 11ac VHT20 MCS0 MCS8 2T2R_MIMO 13 173 3Mbps 802 11ac VHT40 MCS0 MCS9 1T1R_SISO 13 5 200Mbps 802 11ac VHT40 MCS0 MCS9 2T2R_MIMO 27 400Mbps 802 11...

Page 9: ...c VHT40_MCS9 16dBm 2dBm 32dB 802 11ac VHT80_MCS0 14dBm 2dBm 10dB 802 11ac VHT80_MCS9 14dBm 2dBm 32dB 5G Receiver Specifications Ant0 Ant1 RX Rate Min Input Level Typ Max Input Level Typ PER 802 11a 6M...

Page 10: ...9 http www b link net cn 5 Mechanical Specifications 5 1 Module Outline Drawing Top View Module dimension 27 0mm 17 8mm 3 1mm L W H Tolerance 0 15mm IPEX connector dimension 2 6 3 0 1 2mm L W H 2 0mm...

Page 11: ...10 http www b link net cn Module Bow and Twist 0 1mm 5 2 Mechanical Dimensions Top View Bottom View...

Page 12: ...rmation 6 1 Typical Application Circuit 2 4 5G Ant0 BL M8812CU3 Module Crystal Diplexer LED Host Dual Band Ant1 Diplexer RTL8812CU 6 2 Recommend PCB Layout Footprint Bottom View DC DC VDD3 3V USB2 0 H...

Page 13: ...on Manufacturer Note 1 Chipset RTL8812CU CG Realtek 2 PCB BL M8812CU3 Shen Zhen Tie Fa Technology limited MILLION SOURCE PRINTED CIRCUIT BOARD CO LTD Quzhou Sunlord Electronics Co Ltd 3 Crystal 40MHz...

Page 14: ...er roll and 2 800 modules per box 2 Outer box size 37 5 36 29cm 3 The diameter of the blue environment friendly rubber plate is 13 inches with a total thickness of 48mm with a width of 44mm carryingbe...

Page 15: ...ng interference that may cause undesired operation AnyChangesormodificationsnotexpresslyapprovedbythepartyresponsiblefor compliancecouldvoidtheuser sauthoritytooperatetheequipment Note Thisequipmentha...

Page 16: ...perated with a minimum distance of 20 cm between the radiator and the user s body Thedeviceisgoingtobeoperatedin5150 5350MHzfrequencyrange Itisrestricted indoor environmentonly Theendproductmustcarrya...

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