MAX7447EUD+ Maxim Integrated, MAX7447EUD+ Datasheet

MAX7447EUD+

Manufacturer Part Number

MAX7447EUD+

Description

Active Filter Integrated Circuits (ICs)

Manufacturer

Maxim Integrated

Datasheet

1.MAX260ACNG.pdf (6 pages)

Specifications of MAX7447EUD+

Number Of Channels

Cutoff Frequency

5 MHz

Supply Voltage - Max

5.25 V

Supply Voltage - Min

4.75 V

Maximum Operating Temperature

+ 85 C

Mounting Style

SMD/SMT

Package / Case

TSSOP EP

Minimum Operating Temperature

- 40 C

Factory Pack Quantity

Current page: 1 of 6
Download datasheet (282Kb)

The MAX7447 4-channel, buffered video reconstruction

filter is ideal for anti-aliasing and DAC-smoothing video

applications or wherever analog video is reconstructed

from a digital data stream (such as cable/satellite/ter-

restrial set-top boxes, DVD players, hard disk recorders

(HDRs), and personal video recorders (PVRs)). This

device operates from a single +5V supply and has a

flat passband out to 5MHz with a stopband attenuation

of 43dB at 27MHz. This makes it ideal for use with

NTSC, PAL, and standard-definition digital TV (SDTV)

video systems. Each output is capable of driving two

standard 150Ω video loads.

The MAX7447 processes S-Video and CVBS video sig-

nals. The video output buffers have a fixed gain of +6dB.

Each channel has high-frequency boost circuitry that pro-

vides picture sharpness with up to +1.2dB of gain boost

without degradation in the stopband. The output video

drivers can be disabled with an external pin.

The MAX7447 is available in a 14-pin TSSOP package

with an exposed pad, and is specified over the -40°C to

+85°C extended temperature range.

19-2950; Rev 1; 4/06

Pin Configuration appears at end of data sheet.

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.

Set-Top Boxes/HDRs

Game Consoles

Desktop Video Editors

4-Channel S-Video, CVBS Video Filter with

________________________________________________________________ Maxim Integrated Products

CVBS

ENCODER

General Description

D/A

0.1µF

DVD Players

Digital VCRs

INC

IND

INA

INB

Applications

LOWPASS

FILTER

GND

DETECTOR

Asynchronous CVBS Input

SYNC

MAX7447

♦ 4-Channel Filter and Buffer for S-Video and

♦ Filter Response Ideal for NTSC, PAL, and

♦ 43dB (typ) Stopband Attenuation at 27MHz

♦ ±0.75dB (max) Passband Ripple Out to 5MHz

♦ Blanking Level Voltage on Output <1V

♦ Each Channel Drives Two 150Ω Video Loads

♦ +5V Single-Supply Voltage

♦ Small 14-Pin TSSOP Package

*EP = Exposed pad.

MAX7447EUD

CVBS Signals

Interlaced SDTV Video Signals

PART

DISABLE

OUTA

OUTB

OUTC

OUTD

*OPTIONAL CAPACITORS

-40°C to

RANGE

75Ω

+85°C

TEMP

Ordering Information

Functional Diagram

PIN-

PACKAGE

14 TSSOP-EP*

75Ω

Features

PACKAGE

U14E-3

CODE

Related parts for MAX7447EUD+

MAX7447EUD+ Summary of contents

Page 1

... D/A 0.1µF CVBS D/A Pin Configuration appears at end of data sheet. ________________________________________________________________ Maxim Integrated Products 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. Asynchronous CVBS Input ♦ 4-Channel Filter and Buffer for S-Video and CVBS Signals ♦ ...

Page 2

S-Video, CVBS Video Filter with Asynchronous CVBS Input ABSOLUTE MAXIMUM RATINGS V to GND ...........................................................................+6V CC All Other Pins to GND.................................-0. Maximum Current into Any Pin Except V CC Continuous Power Dissipation (T = +70°C) A TSSOP-EP ...

Page 3

S-Video, CVBS Video Filter with ELECTRICAL CHARACTERISTICS (continued +5V ±5 20pF unless otherwise noted. Typical values are MIN MAX PARAMETER ...

Page 4

S-Video, CVBS Video Filter with Asynchronous CVBS Input (V = +5V +25°C, unless otherwise noted SUPPLY CURRENT vs. TEMPERATURE 120 INPUTS BIASED TO +2V NO LOAD 110 100 90 80 -40 - ...

Page 5

S-Video, CVBS Video Filter with The reconstruction filter consists of two 2nd-order Sallen- Key stages. The Butterworth-type response features a maximally flat passband for NTSC and PAL bandwidths. The stopband offers at least 43dB (typ) of attenuation at a ...

Page 6

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 6 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2006 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products, Inc ...

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