MAX7432AEUD 查看數據表（PDF） - Maxim Integrated

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MAX7432AEUD

Standard Definition Video Reconstruction Filters and Buffers

Maxim Integrated 

xx-xxxx; Rev 0; 2/06

Standard Definition Video Reconstruction

Filters and Buffers

General Description

The MAX7428/MAX7430/MAX7432A filters are low-cost,

high-performance replacements for standard discrete fil-

ter and buffer solutions. The MAX7428/MAX7430/

MAX7432A are ideal for anti-aliasing and DAC smooth-

ing video applications, when analog video is reconstruct-

ed from a digital data stream. These devices require a

single +5V supply and the filters have a cutoff frequency

optimized for NTSC, PAL, and standard definition digital

TV (SDTV) video signals. The MAX7428/MAX7430/

MAX7432A feature Maxim’s single-pin bus (MSPB™)

interface to digitally control channel selection (IN_A or

IN_B), adjust high-frequency boost, bypass the filter,

configure luma vs. chroma operation, and control the

output disable. The MAX7428 single-channel filter is

ideal for composite (CVBS) video signals. The MAX7430

dual filter is optimized for S-Video (Y/C) applications. The

MAX7432A triple filter is optimized for component (YPbPr

or embedded synchronous RGB) video signals. The

MAX7428 is available in a tiny 8-pin SOT23 package, the

MAX7430 is available in a miniature 10-pin µMAX® pack-

age, and the MAX7432A is available in a 14-pin TSSOP

package. The MAX7428/MAX7430/MAX7432A are fully

specified over the -40°C to +85°C extended temperature

range.

Applications

Set-Top Boxes

DVD Players

Hard-Disk Recorders

Camcorders

Features

♦ Ideal for CVBS, Y/C (S-Video), and RGB (Y Pb Pr)

Outputs for NTSC, PAL, and SDTV

♦ 6th-Order Lowpass Filter

♦ Drives Two 150Ω Video Loads

♦ Four Levels of Passband High-Frequency

Boost Control

♦ Input 2 to 1 Multiplexer

♦ Output Disable

♦ Filter Bypassing

♦ +5V Single-Supply Voltage

♦ Tiny 8-Pin SOT23 Package (MAX7428), 10-Pin

µMAX Package (MAX7430), and 14-Pin TSSOP

Package (MAX7432A)

Ordering Information

PART

TEMP

RANGE

MAX7428EKA-T -40°C to +85°C

MAX7430EUB -40°C to +85°C

MAX7432AEUD -40°C to +85°C

PIN-

PACKAGE

8 SOT23-8

10 µMAX

14 TSSOP

TOP

MARK

AAIU

—

—

MSPB is a trademark of Maxim Integrated Products, Inc.

µMAX is a registered trademark of Maxim Integrated Products, Inc.

Pin Configurations appear at end of data sheet.

Functional Diagrams

VCC

SYNCIO

SYNC

MAX7428

SERIAL INTERFACE

AND CONTROL

DATA

CIN

D/A

INA

6TH-ORDER

FILTER

75Ω *

+6dB

OUT

75Ω

ENCODER

CIN

LEVEL SHIFT

BIAS GENERATOR

INB

AUX INPUT

GND

REXT

*

*OPTIONAL

Functional Diagrams continued at end of data sheet.

________________________________________________________________ Maxim Integrated Products 1

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

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

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