Datasheet > MAX19794

MAX19794

更新时间： 2024-11-14 14:57:51

品牌	Logo	应用领域
亚德诺 - ADI		衰减器
页数	文件大小	规格书
25页	5899K
描述
10MHz至500MHz、双通道、模拟电压可变增益衰减器，内置10位、SPI控制DAC

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MAX19794 数据手册

EVALUATION KIT AVAILABLE

MAX19794

10MHz to 500MHz Dual Analog Voltage Variable

Attenuator with On-Chip 10-Bit SPI-Controlled DAC

General Description

Benefits and Features

The MAX19794 dual general-purpose analog voltage

variable attenuator (VVA) is designed to interface

with 50I systems operating in the 10MHz to 500MHz

frequency range. This device includes a patented control

circuit that provides 22.4dB of attenuation range (per

attenuator) with a typical linear control slope of 8dB/V.

S Wide Band Coverage

 RF Frequency Range from 10MHz to 500MHz

S High Linearity

 Greater than +34.4dBm IIP3 over the Full

Attenuation Range

 +21.8dBm Input P

1dB

Both attenuators share a common analog control.

They can be cascaded together to yield 44.7dB of

total attenuation range with a typical combined linear

control slope of 16dB/V (5V operation). Alternatively, the

on-chip, 4-wire SPI-controlled 10-bit DAC can be used

to control both attenuators. In addition, a step-up/down

feature allows user-programmable attenuator stepping

through command pulses without re-programming the

SPI interface.

S Integrates Two Analog Attenuators in One

Monolithic Device

S Two Convenient Control Options

 Single Analog Voltage

 On-Chip, SPI-Controlled 10-Bit DAC

S Step-Up/Down Pulse Command Inputs

S Flexible Attenuation Control Ranges

 22.4dB (per Attenuator)

 44.7dB (both Attenuators Cascaded)

The MAX19794 is a monolithic device designed using

one of Maxim’s proprietary SiGe BiCMOS processes. The

part operates from a single +5V supply or alternatively

operates from a single +3.3V supply. It is available

in a compact 36-pin TQFN package (6mm x 6mm x

0.8mm) with an exposed pad. Electrical performance

is guaranteed over the -40NC to +100NC extended

temperature range.

S Linear dB/V Analog Control Response Curve

Simplifies Automatic Leveling Control and Gain

Trim Algorithms

S Excellent Attenuation Flatness over Wide

Frequency Ranges and Attenuation Settings

S On-Chip Comparator (for Successive

Approximation Measurement of Attenuator

Control Voltage)

Applications

S Low 13mA Supply Current

Broadband System Applications, Including

Wireless Infrastructure Digital and Spread-

Spectrum Communication Systems

S Single +5V or 3.3V Supply Voltage

S Pin Similar with MAX19791, MAX19792, and

MAX19793

WCDMA/LTE, TD-SCDMA/TD-LTE, WiMAX®,

cdma2000®, GSM/EDGE and MMDS Base

Stations

S Lead-Free Package

VSAT/Satellite Modems

Microwave Point to Point Systems

Lineup Gain Trim

Temperature Compensation Circuits

Automatic Level Control (ALC)

Transmitter Gain Control

Receiver Gain Control

WiMAX is a registered certification mark and regisitered

service mark of WiMAX Forum.

cdma2000 is a registered trademark of Telecommunications

Industry Association.

Ordering Information appears at end of data sheet.

General Test Equipment

For related parts and recommended products to use with this part,

refer to www.maximintegrated.com/MAX19794.related.

For pricing, delivery, and ordering information, please contact Maxim Direct

at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.

19-6381; Rev 1; 5/15

12 3 4 5 6 7...25

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与MAX19794相关器件

型号	品牌	获取价格	描述	数据表
MAX19794ETX	MAXIM	获取价格	10MHz to 500MHz Dual Analog Voltage Variable Attenuator with On-Chip 10-Bit SPI-Controlled
MAX19794ETX+	MAXIM	获取价格	Variable Attenuator,
MAX19794ETXT	MAXIM	获取价格	10MHz to 500MHz Dual Analog Voltage Variable Attenuator with On-Chip 10-Bit SPI-Controlled
MAX1979ETM	MAXIM	获取价格	Integrated Temperature Controllers for Peltier Modules
MAX1979ETM+T	MAXIM	获取价格	Serial Switch/Digital Sensor, 1Cel, BICMOS, Square, 48 Pin, Surface Mount, EXPOSED PAD, TQ
MAX1979ETM-T	MAXIM	获取价格	Serial Switch/Digital Sensor, 1Cel, BICMOS, Square, 48 Pin, Surface Mount, EXPOSED PAD, TQ
MAX197ACAI	MAXIM	获取价格	Multi-Range (【10V, 【5V, +10V, +5V), Single +5
MAX197ACAI+T	MAXIM	获取价格	Analog Circuit, 1 Func, PDSO28, 0.209 INCH, ROHS COMPLIANT, SSOP-28
MAX197ACNI	MAXIM	获取价格	Multi-Range (【10V, 【5V, +10V, +5V), Single +5
MAX197ACWI	MAXIM	获取价格	Multi-Range (【10V, 【5V, +10V, +5V), Single +5

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