MAX9542

更新时间： 2024-11-05 12:19:39

品牌	Logo	应用领域
美信 - MAXIM		放大器
页数	文件大小	规格书
16页	347K
描述
Quadruple, 2:1, Mux Amplifiers for Standard-Definition and VGA Signals

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MAX9542 数据手册

19-4457; Rev 0; 2/09

Quadruple, 2:1, Mux Amplifiers for

Standard-Definition and VGA Signals

1/MAX9542

General Description

Features

The MAX9541/MAX9542 are quadruple-channel, 2:1

video mux amplifiers with input sync tip clamps. These

devices select between two video sources and support

up to four channels on each source. The MAX9541 has

integrated lowpass filters that are optimized for standard-

definition video signals such as composite and red,

green, blue (RGB). The filters typically have 1dB pass-

band flatness out to 9.5MHz and 47dB attenuation at

27MHz. The MAX9542 has a wider bandwidth of 15MHz

because it does not have integrated lowpass filters, mak-

ing it suitable for not only standard-definition video sig-

nals, but also video graphics array (VGA) signals with a

640 x 480 resolution at up to 85Hz refresh rate.

♦ Quad 2:1 Video Mux Amplifiers

♦ Reconstruction Filters with 9.5MHz Passband and

47dB Attenuation at 27MHz (MAX9541)

♦ Fixed Gain of 2V/V

♦ Input Sync-Tip Clamps

♦ Shutdown

♦ 2.7V to 3.6V Single-Supply Operation

Ordering Information

Video signals are AC-coupled to the inputs of the

MAX9541/MAX9542. The input sync-tip clamps set the

internal DC level.

STANDARD-

DEFINITION

VIDEO FILTER

PART

PIN-PACKAGE

The amplifiers have 2V/V gain, and the outputs can be

DC-coupled to a 75Ω load, which is the equivalent of two

video loads, or AC-coupled to a 150Ω load.

Both the MAX9541/MAX9542 feature a low-power shut-

down mode, in which supply current is reduced to 35µA.

MAX9541AEE+

MAX9542AEE+

16 QSOP

Yes

Note: All devices are specified over the -40°C to +125°C oper-

ating temperature range.

+Denotes a lead(Pb)-free/RoHS-compliant package.

Applications

Automotive Infotainment

Functional Diagram

SHDN

A/B

MAX9541

MAX9542

IN0A

OUT0

2V/V

LPF*

IN1A

CLAMPREF

UNKNOWN

BIAS

300mV

IN2A

IN3A

OUT1

LPF*

CLAMPREF

IN0B

IN1B

OUT2

OUT3

2V/V

LPF*

IN2B

IN3B

CLAMPREF

GND

*LOWPASS FILTER IN MAX9541 ONLY.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

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