Datasheet > ML2731ET

ML2731ET

更新时间： 2024-01-21 07:15:46

品牌	Logo	应用领域
MICRO-LINEAR		控制器
页数	文件大小	规格书
12页	183K
描述
PA Bias Controller

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技术参数
数据手册

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ML2731ET 技术参数

生命周期：	Obsolete	零件包装代码：	TSSOP
包装说明：	TSSOP,	针数：	16
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.84	JESD-30 代码：	R-PDSO-G16
长度：	5 mm	功能数量：	1
端子数量：	16	最高工作温度：	70 °C
最低工作温度：		封装主体材料：	PLASTIC/EPOXY
封装代码：	TSSOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	认证状态：	Not Qualified
座面最大高度：	1.2 mm	标称供电电压：	3.3 V
表面贴装：	YES	电信集成电路类型：	TELECOM CIRCUIT
温度等级：	COMMERCIAL	端子形式：	GULL WING
端子节距：	0.65 mm	端子位置：	DUAL
宽度：	4.4 mm	Base Number Matches：	1

ML2731ET 数据手册

PRELIMINARY

ML2731 PA Bias Controller

GENERAL DESCRIPTION

FEATURES

Sets PA current and power output using a bias control

loop

The ML2731 is a power amplifier (PA) bias controller with

support circuits for a typical radio transceiver. The IC

integrates a PA bias controller, a PA DC switch, a crystal

oscillator circuit, a negative voltage generator and two

voltage regulators. It can be used with GaAs FETs and

silicon bipolar devices.

Integrates a PA DC supply switch

Prevents PA power-on if negative voltage is not present

Integrates all circuits needed for supporting a crystal

oscillator with 10MHz to 40MHz frequency range

Micro Linear’s ML2731, along with the ML2712 and the

ML2713, form a complete transceiver solution for the 2.4

GHz IEEE802.11 communication standard, as well as

other wireless ISM communication products.

Incorporates a fast starting, high switching frequency,

negative voltage generator requiring only small

ceramic capacitors

Contains voltage regulators for an oscillator, a negative

voltage generator and a 50mA 3.0V LDO output

In addition to supporting Micro Linear’s transceiver chip

set, the ML2731 can stand alone as:

Requires less than 1mA of current when powered down

Supply voltage ranges from 3.3V to 5.5V

A compact bias voltage controller

A compact negative voltage generator

A compact crystal oscillator

APPLICATIONS

Cellular and Cordless Radios

WLAN Radios

Radios with GaAs FET Power Amplifiers

Fixed and Mobile radio transceivers

SIMPLIFIED BLOCK DIAGRAM

ML2731

VPA

PAEN

PA on/off switch

and current sense

ICON

VBIAS

Bias Control

NEGEN

VNEG

XIN

Crystal

Negative voltage

generator

Crystal

Oscillator

XOUT

Voltage

Regulator

Sine & square

wave drivers

PDN

REGO

SINO

CLKO

Baseband Controller

(e.g. MSM7730B)

ML2712

ML2713

Radio

GaAs FET Power Amplifier

January, 2000

PRELIMINARY DATASHEET

12 3 4 5 6 7...12

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