WM620 Hardware User Guide
Copyright © Neoway Technology Co., Ltd
1 Introduction to WM620
1.1 Overview
WM620 is a WCDMA module that supports multiple network modes including HSDPA, UMTS, EDGE,
GPRS, and GSM. HSDPA supports 3.6Mbps high-speed download .WM620 provides high-quality data
and voice communication, SMS and other functions. It is widely applied to electricity, Internet of Vehicle
(IoV), video monitoring, handset devices, etc.
WM620 is an SMT module in LCC compact package. It can be easily adopted for standard Mini PCI-E
interface. The model of WM620 is shown as follows.
This user guide details the features, indicators, and testing standards of WM620.
1.2 Block Diagram
WM620 module consists of power supply management, baseband controller, MCP, power amplifier (PA),
19.2 MHz transistor, 32.768 KHz transistor, various application interfaces, etc. All sections coordinate
with each other to provide such communication functions as data and voice services.
Its design block diagram is shown in the following figure.