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LTC4402-1 - 典型应用图例：

LTC4402-1 - 封装图解：

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LTC4402-1 - LTC4402-1是Multiband RF Power Controllers for EDGE/TDMA

LTC4402-1是LINEAR凌力尔特公司的一款功率放大器控制器产品，LTC4402-1是LTC4402-1是Multiband RF Power Controllers for EDGE/TDMA，本站介绍了LTC4402-1的封装应用图解、特点和优点、功能等，并给出了与LTC4402-1相关的LINEAR元器件型号供参考。

LTC4402-1 - LTC4402-1是Multiband RF Power Controllers for EDGE/TDMA - 功率放大器控制器 - RF和无线 - 凌力尔特

LTC4402-1 - Multiband RF Power Controllers for EDGE/TDMA

LTC4402-1 - Multiband RF Power Controllers for EDGE/TDMA - Linear Technology（凌力尔特）

功能描述

The LTC4402-2 is a multiband RF power controller for RF power amplifiers operating in the 300MHz to 2.4GHz range. The LTC4402-2 has two outputs to control dual TX PA modules with two control inputs. An internal sample and hold circuit enables the LTC4402-2 to be used with AM modulation via the carrier or PA supply. The input voltage range is optimized for operation from a single lithium-ion cell or 3x NiMH.

RF power is controlled by driving the RF amplifier power control pins and sensing the resultant RF output power. The RF sense voltage is peak detected using an on-chip Schottky diode. This detected voltage is compared to the DAC voltage at the PCTL pin to control the output power.

The LTC4402-1 is a single output RF power controller with identical performance to the LTC4402-2. The LTC4402-1 has one output to control a single TX PA or dual TX PA module with a single control input and is available in an 8-pin MSOP package.

Internal and external offsets are cancelled over temperature by an autozero control loop. The shutdown feature disables the part and reduces the supply current to <10µA.

特点

Supports AM Modulation in EDGE/TDMA (ANSI-136) Applications

Single Output RF Power Amplifier Control (LTC4402-1)

Dual Output RF Power Amplifier Control (LTC4402-2)

Internal Schottky Diode Detector with >40dB Range

Wide Input Frequency Range: 300MHz to 2.4GHz

Autozero Loop Cancels Offset Errors and Temperature Dependent Offsets

Wide VIN Range: 2.7V to 6V

450kHz Loop Bandwidth

Allows Direct Connection to Battery

RF Output Power Set by External DAC

Internal Frequency Compensation

Rail-to-Rail Power Control Outputs

Low Operating Current: 1mA

Low Shutdown Current: <10µA

PCTL Input Filter

Available in a 8-Pin MSOP Package (LTC4402-1) and 10-Pin MSOP (LTC4402-2)

应用

Multiband GSM/GPRS/EDGE Cellular Phones

PCS Devices

Wireless Data Modems

U.S. TDMA Cellular Phones

以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）

器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量)
LTC4402-1EMS8	MS-8	E	$2.23	$1.60
LTC4402-1EMS8#PBF	MS-8	E	$2.23	$1.60
LTC4402-1EMS8#TR	MS-8	E		$1.66
LTC4402-1EMS8#TRPBF	MS-8	E		$1.66
LTC4402-2EMS	MS-10	E	$2.68	$1.90
LTC4402-2EMS#PBF	MS-10	E	$2.68	$1.90
LTC4402-2EMS#TR	MS-10	E		$1.96
LTC4402-2EMS#TRPBF	MS-10	E		$1.96

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