MAX19792ETX+【PDF 1/23 页】ATTENUATR 46DB 50OHM 4GHZ 36TQFN

收藏本站

您好，
买卖IC网欢迎您。
请登录
免费注册

买卖IC网

Sheet目录55

[1页]2页 3页 4页 5页

MAX19792

500MHz to 4000MHz Dual Analog Voltage Variable

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

19-6382; Rev 1; 9/12

Ordering Information appears at end of data sheet.

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

refer to www.maximintegrated.com/MAX19792.related.

EVALUATION KIT AVAILABLE

General Description

The MAX19792 dual general-purpose analog voltage

variable attenuator (VVA) is designed to interface with

50I systems operating in the 500MHz to 4000MHz

frequency range. The device includes a patented control

circuit that provides 23.2dB of attenuation range (per

attenuator) with a typical linear control slope of 8.5dB/V.

Both attenuators share a common analog control and

can be cascaded together to yield 46.4dB of total attenu-

ation range with a typical combined linear control slope

of 17dB/V (5V operation).

Alternatively, the on-chip 4-wire SPI-controlled 10-bit

DAC can be used to control both attenuators. In addi-

tion, a step-up/down feature allows user-programmable

attenuator stepping through command pulses without

reprogramming the SPI interface.

The MAX19792 is a monolithic device designed using

one of Maxims proprietary SiGe BiCMOS processes. The

part operates from a single +5V supply or alternatively

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.

Applications

Broadband System Applications, Including

Wireless Infrastructure Digital and

Spread-Spectrum Communication Systems

WCDMA/LTE, TD-SCDMA/TD-LTE, WiMAX?

cdma2000

, GSM/EDGE, and

MMDS Base Stations

VSAT/Satellite Modems

Military Systems

Microwave Point-to-Point Systems

Lineup Gain Trim

Temperature-Compensation Circuits

Automatic Level Control (ALC)

Transmitter Gain Control

Receiver Gain Control

General Test Equipment

Features

S Wideband Coverage

?500MHz to 4000MHz RF Frequency Range

S High Linearity

?Greater Than +37.9dBm IIP3 Over the Full

Attenuation Range

?+22.7dBm Input P

1dB

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

? 23.2dB (Per Attenuator)

? 46.4dB (Both Attenuators Cascaded)

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)

S Low 13mA Supply Current

S Single 5V or 3.3V Supply Voltage

S Pin-Compatible with the MAX19791 and MAX19793

S Pin-Compatible with the MAX19794 with Addition

of Two Shunt Capacitors

S PCB-Compatible with the MAX19790

S Lead(Pb)-Free Package

WiMAX?is a registered certification mark and registered service mark of WiMAX Forum.

cdma2000 is a registered trademark of Telecommunications Industry Association.

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

at 1-888-629-4642, or visit Maxims website at www.maximintegrated.com.

发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

*型号	*数量	厂商	批号	封装

添加更多采购

采购需求

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

我的联系方式