Specifications

WF-R12B-UWD1

IEEE 802.11a/b/g/n/ac 2T2R USB WIFI Module

Sichuan AI-Link Technology Co.,Ltd. page 4 of 14

1. Introduction

WF-R12B-UWD1 module design is based on Realtek RTL8812BU-VR solution, The RTL8812BU-VR is

a highly integrated single chip which has built in a 2x2 dual-band wireless LAN radio. The Module is a

highly integrated MAC/BBP and 2.4/5GHz PA/LNA single chip which supports a 866.7Mbps PHY rate.

The Module is designed to support standard-based features in the areas of security, quality of service,

and international regulations, giving end users the greatest performance anytime and in any

circumstance. This documentation describes the engineering requirements specification.

1.1 RF module Overview

The general HW architecture for the module is shown in Figure 1. This WLAN Module design is based

on Realtek RTL8812BU-VR. It is a highly integrated single-chip MIMO(Multiple In Multiple Out) Wireless

LAN (WLAN) network interface controller complying with the 802.11 specification over USB interface. It

combines a MAC, a 2T2R capable baseband, and RF in a single chip. An intelligent Wi-Fi coexistence

algorithm is implemented to provide the best harmonized Wi-Fi performance.

RFIP_5G_S0

RFIP_2.4G_S0

RFIP_2.4G_S1

RFIP_5G_S1

BALUN

MCU

Ext

interface

MAC

Baseband

ADC ADC ADC

ADC

Transceiver

2.4G/5G

WLAN

SPS/LDO

MENORY

Crystal

3.3V

USB

Figure 1 WF-R12B-UWD1 Block Diagram

1.2 Specification reference

This specification is based on additional references listed below.

_ IEEE Std. 802.11a

_ IEEE Std. 802.11b

_ IEEE Std. 802.11g

_ IEEE Std. 802.11n

_ IEEE Std. 802.11ac