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MAX4473 Datasheet (PDF) - Maxim Integrated Products

MAX4473 Datasheet PDF - Maxim Integrated Products
No. de pieza MAX4473
Descarga  MAX4473 Descarga

Tamaño del archivo   140.29 Kbytes
Page   6 Pages
Fabricante Electrónico  MAXIM [Maxim Integrated Products]
Página de inicio  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products
Descripción Electrónicos Low-Cost, Low-Voltage, PA Power Control Amplifier for GSM Applications in 8-Pin 關MAX

MAX4473 Datasheet (PDF)

Go To PDF Page Descarga Datasheet
MAX4473 Datasheet PDF - Maxim Integrated Products

No. de pieza MAX4473
Descarga  MAX4473 Click to download

Tamaño del archivo   140.29 Kbytes
Page   6 Pages
Fabricante Electrónico  MAXIM [Maxim Integrated Products]
Página de inicio  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products
Descripción Electrónicos Low-Cost, Low-Voltage, PA Power Control Amplifier for GSM Applications in 8-Pin 關MAX

MAX4473 Datasheet (HTML) - Maxim Integrated Products

MAX4473 Datasheet HTML 1Page - Maxim Integrated Products MAX4473 Datasheet HTML 2Page - Maxim Integrated Products MAX4473 Datasheet HTML 3Page - Maxim Integrated Products MAX4473 Datasheet HTML 4Page - Maxim Integrated Products MAX4473 Datasheet HTML 5Page - Maxim Integrated Products MAX4473 Datasheet HTML 6Page - Maxim Integrated Products

MAX4473 Detalles de producto

General Description
The MAX4473 PA power control IC is intended for closed-loop bias control of GSM power amplifiers. The device facilitates accurate control of the current delivered to the power amplifier (PA) through a control voltage. The error amplifier senses the voltage drop across an external current-sense resistor placed between the supply and the PA. The output of the error amplifier adjusts the PA gain until the current is proportional to the power control voltage applied to the MAX4473. This unique topology is useful in time-division-multiple access (TDMA) systems, such as GSM, where accurate transmit burst shaping and power control is required.
User-selectable current sensing and gain setting resistors maximize flexibility.
The MAX4473 operates from a single 2.7V to 6.5V supply and typically draws 1.2mA of supply current. The error amplifier has a common-mode range that extends from 1V to VCC. The power control input and error amplifier outputs swing rail-to-rail. A low-power shutdown mode reduces supply current to less than 1µA and activates an on-board active pull-down at the error amplifier output. Fast enable/disable times of 0.9µs reduce average power consumption without compromising dynamic performance. The MAX4473 is available in a space-saving 8-pin µMAX® package.

Features
♦ Optimized for GSM Timing Requirements
♦ 2.7V to 6.5V Single-Supply Operation
♦ 1.2mA Supply Current
♦ ≤ 1µA Supply Current in Shutdown Mode
♦ Guaranteed 1.5µs Enable/Disable Times
♦ Active Output Pull-Down in Shutdown Mode
♦ Rail-to-Rail Error Amplifier Output
♦ Rail-to-Rail Power Control Input
♦ Output Drive Capability—500Ω and 300pF Loads
♦ 1V to VCC Current Sense Input Common-Mode Voltage Range
♦ No Phase-Reversal for Common-Mode Voltage from 0 to VCC
♦ External Current Sensing and Gain Setting
   Resistors Maximize Flexibility
♦ Available in a Space-Saving 8-Pin µMAX

Applications
   GSM Cellular Phones
   Cordless Phones
   Precision Current Control
   High-Frequency Servo Loops




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Acerca de Maxim Integrated Products


Maxim Integrated Products es una empresa que cotiza en bolsa que diseña, desarrolla y vende una amplia gama de circuitos integrados (ICS) analógicos y de señal mixta de alto rendimiento.
La compañía fue fundada en 1983 y tiene su sede en San José, California.
Maxim Integrated Products atiende a clientes en una variedad de mercados, incluidas comunicaciones, informática, consumidores, industriales, médicos y automotrices.
La compañía ofrece una cartera integral de productos, incluidos convertidores de datos, amplificadores y comparadores, ICS de gestión de energía, microcontroladores, dispositivos de seguridad y protección y sensores, entre otros.
Maxim Integrated Products se dedica a la innovación y la satisfacción del cliente, y se compromete a ofrecer soluciones confiables de alta calidad a sus clientes.
Con un enfoque en la eficiencia energética y la sostenibilidad, los productos integrados de Maxim están a la vanguardia de la industria de semiconductores, lo que impulsa los avances tecnológicos en los campos de ICS analógicos y de señal mixta.

*Esta información es solo para fines informativos generales, no seremos responsables de ninguna pérdida o daño causado por la información anterior.




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