Datasheet > LMV243BL

LMV243BL

更新时间： 2024-09-23 22:37:11

品牌	Logo	应用领域
美国国家半导体 - NSC		控制器 GSM
页数	文件大小	规格书
13页	887K
描述
Single-Channel, Quad-Band GSM Power Controller in micro SMD

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LMV243BL 数据手册

May 2002

LMV243

Single-Channel, Quad-Band GSM Power Controller in

micro SMD

General Description

Features

The device is intended for use within an RF transmit power

control loop in GSM mobile phones and supports GaAs HBT

and bipolar RF single supply power amplifiers. The circuit

operates with a single supply from 2.7V to 3.3V.

(Typical Unless Otherwise Noted)

n 50dB RF detection range (typical)

n micro SMD package 1.5mm x 1.5mm x 0.995mm

n Support of GaAs HBT, bipolar technology

n Quad-band operation

n Shutdown mode for Power Save in Rx slot

n GPRS compliant

n External loop compensation option

n Accurate temperature compensation

n Frequency range is 450MHz to 2GHz

The LMV243 contains an RF detector, error amplifier, ramp

V/I converter and output driver. The LMV243 input interface

consists of the RF input, Ramp voltage, and a digital input to

perform the function ’Shutdown/Transmit Enable’. The de-

vice will be active in the case TX_EN = HI, otherwise, the

device goes into a low power consumption shutdown mode.

During shutdown the output will be in high impedance

(tri-state).

Applications

n GSM mobile phone

n AGC for digital audio

n TDMA RF control

n Wireless LAN

A single external RC combination is used to provide stable

operations that accommodates individual PA characteristics.

The LMV243 is offered in a 8-bump micro SMD 1.5mm x

1.5mm package. This space savings package supports flex-

ible product placement almost anywhere in the circuitboard.

Typical Application

20029034

DS200290

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