MAX7444ESA+T Maxim Integrated Products, MAX7444ESA+T Datasheet

MAX7444ESA+T

Manufacturer Part Number

MAX7444ESA+T

Description

IC FILTER RECON VID 8-SOIC

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX7443ESA.pdf (8 pages)

Specifications of MAX7444ESA+T

Filter Type

Low Pass

Frequency - Cutoff Or Center

27MHz

Number Of Filters

Voltage - Supply

4.75 V ~ 5.25 V

Mounting Type

Surface Mount

Package / Case

8-SOIC (3.9mm Width) Exposed Pad, 8-eSOIC. 8-HSOIC

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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The MAX7443/MAX7444 are low-cost, triple-channel

video reconstruction filters for S-video and CVBS video

signals. These devices are ideal for anti-aliasing and

DAC smoothing video applications such as set-top

boxes, DVD players, hard-disk recorders (HDRs), and

personal video recorders. These filters operate from a

single +5V supply. They are optimized for NTSC, PAL,

and standard-definition digital TV (SDTV) video systems.

Each channel consists of a lowpass filter and an

adjustable-gain output buffer capable of driving two

standard 150Ω video loads. The output buffers can drive

either an AC or a DC load such that the blanking level

voltage after the backmatch resistor is less than 1V. The

Y and C video inputs are summed to produce the com-

posite video output. The MAX7444 offers high-

frequency boost to improve picture sharpness. The

MAX7443 has a maximum flat-frequency response.

The MAX7443/MAX7444 are available in a tiny 8-pin thin

QFN and an 8-pin SO package with exposed pad, and

are fully specified over the -40°C to +85°C extended

temperature range.

19-2749; Rev 1; 1/06

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/HDR/DVD

Security Cameras/Digital

Cameras

Game Consoles

Triple-Channel Video Reconstruction Filter and

ENCODER

________________________________________________________________ Maxim Integrated Products

D/A

General Description

Buffer for Composite and Y/C Outputs

CIN

YIN

Digital VCRs

Every Composite,

S-Video Output for NTSC,

PAL, SDTV

MAX7443

MAX7444

LOWPASS

Applications

FILTER

GND

FILTER

6dB/

9.5dB/

12dB

6dB/

9.5dB/

12dB

6dB/

9.5dB/

12dB

GSET

♦ Triple-Channel Filter and Buffer for CVBS and

♦ Filter Response Ideal for NTSC, PAL, and

♦ 41dB (typ) Stopband Attenuation at 27MHz

♦ -0.3dB (typ) Passband Response

♦ Low Blanking Level Voltage Allows DC-Coupled

♦ Each Channel Drives Two 150Ω Video Loads

♦ +5V Single-Supply Voltage

♦ Tiny 8-Pin Thin QFN or 8-Pin SO Packages

Note: All devices specified over -40°C to +85°C temperature

range.

*EP = Exposed pad.

Selector Guide appears at end of data sheet.

MAX7443ETA

MAX7443ESA

MAX7444ETA

MAX7444ESA

Y/C (S-Video)

Interlaced SDTV Signals

Output

CVOUT

YOUT

COUT

PART

PIN-PACKAGE

8 Thin QFN-EP*

8 SO-EP*

8 Thin QFN-EP*

8 SO-EP*

*OPTIONAL

Ordering Information

Functional Diagram

MARK

TOP

AFX

AFY

—

Features

S8E-12

T833-1

CODE

PKG

Related parts for MAX7444ESA+T

MAX7444ESA+T Summary of contents

Page 1

... MAX7443 MAX7444 LOWPASS CIN D/A ________________________________________________________________ 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. ♦ Triple-Channel Filter and Buffer for CVBS and Y/C (S-Video) ♦ Filter Response Ideal for NTSC, PAL, and Interlaced SDTV Signals ♦ ...

Page 2

Triple-Channel Video Reconstruction Filter and Buffer for Composite and Y/C Outputs 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) ...

Page 3

Triple-Channel Video Reconstruction Filter and Buffer for Composite and Y/C Outputs ELECTRICAL CHARACTERISTICS (continued +5V ±5 20pF GSET = GND (6dB) and V A MIN ...

Page 4

Triple-Channel Video Reconstruction Filter and Buffer for Composite and Y/C Outputs (V = +5V +25°C, unless otherwise noted SUPPLY CURRENT vs. TEMPERATURE -40 - TEMPERATURE (°C) ...

Page 5

Triple-Channel Video Reconstruction Filter and Buffer for Composite and Y/C Outputs Table 1. Gain-Setting Control GSET GAIN (dB) GND V CC Open The GSET pin is biased internally to V 100kΩ resistors from V to GND. The internal imped- CC ...

Page 6

Triple-Channel Video Reconstruction Filter and Buffer for Composite and Y/C Outputs (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) 6 _______________________________________________________________________________________ Package Information PACKAGE OUTLINE ...

Page 7

Triple-Channel Video Reconstruction Filter and Buffer for Composite and Y/C Outputs (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) _______________________________________________________________________________________ Package Information (continued) 7 ...

Page 8

... 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. 8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2006 Maxim Integrated Products Package Information (continued) ...

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