WM2020CU TYPE OF PRODUCT User Manual WLAN/BT MODULE WM2020CU WLAN/BT USB Module Version Date Change Description 1.
WM2020CU TYPE OF PRODUCT User Manual WLAN/BT MODULE Description WM2020CU is a highly integrated 802.11a/b/g/n/ac 2T2R and BT 2.1/3.0/4.1/4.2 module that support 2-stream 802.11ac Multi-user MIMO. It combines a WLAN MAC, a 2T2R capable WLAN baseband, BT Protocol Stack (LM, LL, and LE), BT Baseband, modem. It provides a complete solution for a high throughput performance integrated wireless LAN and Bluetooth device.
WM2020CU TYPE OF PRODUCT User Manual WLAN/BT MODULE Functional Block Diagram Block Diagram CONFIDENTIAL 3
WM2020CU TYPE OF PRODUCT User Manual WLAN/BT MODULE Pin Assignment (Top view) Pin Definition Pin Signal Input /Output 1 PDn Input 2 VDD33 Power Description This pin can externally shutdown the RTL8822BU(No extra power switch required). When this function is not required, external pull high is required.
WM2020CU TYPE OF PRODUCT User Manual WLAN/BT MODULE Application Circuit CONFIDENTIAL 5
WM2020CU TYPE OF PRODUCT User Manual WLAN/BT MODULE Functional Specification Product Description WLAN Standard Bluetooth Standard Main Chipset Host Interface Dimension IEEE802.11a/b/g/n and 802.11ac compliant v2.1+EDR, v3.0, v4.1, v4.2 LE RTL8822BU-CG USB 3.0 for WLAN USB 2.0 for WLAN and BT 27.0mm x 17.7mm x 2.2mm Half-hole PCB module Package Electrical Specifications ac/n ISM Band: 5.150 to 5.850 GHz Frequency Range b/g/n ISM Band and Bluetooth: 2.400 to 2.485 GHz WLAN: 802.
WM2020CU TYPE OF PRODUCT User Manual WLAN/BT MODULE Temperature Limit Ratings Parameter Storage Temperature Ambient Operating Temperature Min. -40 0 Max. +125 +70 Units o C o C Rating -0.3 to 3.6 Unit V Absolute Maximum Ratings Symbol VDD33 Parameter USB interface VDD Recommended Operating Range Symbol VDD33 Parameter USB interface VDD Min 3.0 CONFIDENTIAL 7 Typ 3.3 Max Units 3.
WM2020CU TYPE OF PRODUCT User Manual WLAN/BT MODULE Module Dimensions All dimensions are in millimeters. Tolerance: +/- 0.
WM2020CU TYPE OF PRODUCT User Manual WLAN/BT MODULE Pin Header Specification Recommend part is code 04.
WM2020CU TYPE OF PRODUCT User Manual WLAN/BT MODULE Layout Design Guide The recommended layout pads for WM2020CU module are shown below. (Module top view) DO NOT route any digital or analog signal traces between the RF traces and reference ground. DO NOT put any metal shielding in the surrounding area of module and try to leave the module placed in the corner of chassis board as close as possible. DO NOT put any metal plane into clearance area.
WM2020CU TYPE OF PRODUCT User Manual WLAN/BT MODULE half-holes only for USB2.0 Solution All dimensions are in millimeters. Tolerance: +- 0.
WM2020CU TYPE OF PRODUCT User Manual WLAN/BT MODULE Reference Temperature Reflow Chart Note: 1. If the system PCBA is double side design please reflow the side without this module first. 2. Don’t let the solder machine temperature over 250℃ or follow solder paste vender’s recommended temperature. 3. The Ramp-up temperature speed is 1~4 oC per second, the Ramp-down temperature speed is 1~4 oC per second. 4.
WM2020CU TYPE OF PRODUCT User Manual WLAN/BT MODULE Compliance Information FCC Compliance This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
Radi oFr equency( RF)Exposur eI nf or mat i on Ther adi at edout putpoweroft heWi r el essDevi cei sbel owt heI ndust r yCanada( I C)r adi of r equency exposur el i mi t s.TheWi r el essDevi ceshoul dbeusedi nsuchamannersucht hatt hepot ent i alf or humancont actdur i ngnor maloper at i oni smi ni mi zed. Thi sdevi cehasal sobeeneval uat edandshowncompl i antwi t ht heI CRFExposur el i mi t sunder mobi l eexposur econdi t i ons.( ant ennasar egr eat ert han20cm f r om aper son' sbody) .
