CEM600 EVDO Mini PCIE Module Hardware User Guide
Shang Hai YUGE Information Technology co., LTD
Page 4 of 25
Chapter 1. Introduction
1.1 Overview
This document describes the functions, interfaces, technical specifications, appearance,
and structure of the CEM600 module. It can help the R&D engineers using this module to
provide design references.
1.2 Abbreviations
ADC
Analog-Digital Converter
模数转换
AFC
Automatic Frequency Control
自动频率控制
AGC
Automatic Gain Control
自动增益控制
ARFCN
Absolute Radio Frequency Channel Number
绝对射频信道号
B2B
Board to Board Connector
板对板连接器
BER
Bit Error Rate
比特误码率
CDMA
Code Division Multiple Access
码分多址
DAI
Digital Audio interface
数字音频接口
DAC
Digital-to-Analog Converter
数模转换
DSP
Digital Signal Processor
数字信号处理
DTR
Data Terminal Ready
数据终端准备好
EFR
Enhanced Full Rate
增强型全速率
EMC
Electromagnetic Compatibility
电磁兼容
EMI
Electro Magnetic Interference
电磁干扰
ESD
Electronic Static Discharge
静电放电
EVDO
Evolution Data Only
演进数据优化或者进化的数
据
FR
Full Rate
全速率
GPRS
General Packet Radio Service
通用分组无线业务
HR
Half Rate
半速率
IMEI
International Mobile Equipment Identity
国际移动设备标识
ISO
International Standards Organization
国际标准化组织
PLL
Phase Locked Loop
锁相环
PPP
Point-to-point protocol
点到点协议
RAM
Random Access Memory
随机访问存储器
ROM
Read-only Memory
只读存储器
RTC
Real Time Clock
实时时钟
SMS
Short Message Service
短消息服务
UART
Universal asynchronous receiver-transmitter
通用异步接收
/
发送器
UIM
User Identifier Management
用户身份管理
USB
Universal Serial Bus
通用串行总线
VSWR
Voltage Standing Wave Ratio
电压驻波比
