Datasheet > RM912

RM912

更新时间： 2024-11-19 22:23:47

品牌	Logo	应用领域
科胜讯 - CONEXANT		放大器
页数	文件大小	规格书
20页	447K
描述
CDMA/AMPS 3-4 Volt Power Amplifier (824?849 MHz)

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中文翻译

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技术参数
数据手册

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RM912 技术参数

生命周期：	Transferred	Reach Compliance Code：	unknown
风险等级：	5.17	特性阻抗：	50 Ω
构造：	COMPONENT	增益：	23 dB
最大输入功率 (CW)：	6 dBm	最大工作频率：	849 MHz
最小工作频率：	824 MHz	最高工作温度：	85 °C
最低工作温度：	-30 °C	射频/微波设备类型：	NARROW BAND MEDIUM POWER
最大电压驻波比：	2	Base Number Matches：	1

RM912 数据手册

RM912

CDMA/AMPS 3–4 Volt Power Amplifier (824–849 MHz)

The RM912 dual mode Code Division Multiple Access (CDMA)/Advanced Mobile

Phone Service (AMPS) Power Amplifier is a fully matched 6-pin LCC surface mount

module designed for mobile units operating in the 824-849 MHz cellular bandwidth.

This device meets stringent IS95 CDMA linearity requirements to beyond 28 dBm

output power and can be driven to power output levels beyond 31 dBm for high

efficiency FM mode operation. A single GaAs Microwave Monolithic Intergrated

Circuit (MMIC) contains all active circuitry in the module. The MMIC contains

on-board bias circuitry, as well as input and interstage matching circuits. The output

match is realized off-chip within the module package to optimize efficiency and power

performance into a 50 Ω load. This device is manufactured with Conexant’s GaAs HBT

process that provides for all positive voltage DC supply operation while maintaining

high efficiency and good linearity. Primary bias to the RM912 can be supplied directly

from a three cell nickel-cadmium, single cell lithium-ion, or other suitable battery with

output in the 3-4 volt range. Power down is accomplished by setting the voltage on

the low current reference pin to zero volts. No external supply side switch is needed

as typical “off” leakage is a few microamperes with full primary voltage supplied from

the battery.

Distinguishing Features

•

Low voltage positive bias supply

Good linearity

High efficiency

Dual mode operation

Large dynamic range

6-pin LCC package

(6 x 6 x 1.5 mm)

•

Power down control

Applications

•

Digital cellular (CDMA)

Analog cellular (AMPS)

Wireless local loop

Functional Block Diagram

VCC2

(4)

VREF

(3)

VCC1

(1)

Driver

Power

Stage Bias

Inter

Stage

Match

Input

(2)

Input

Match

Output

Match

Output

(5)

MMIC

MODULE

GND

(6, 7)

GND

(6, 7)

Data Sheet

100635G

August 2000

12 3 4 5 6 7...20

中文翻译

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