MAX4079 Complete Audio/Video Backend Solution

Description

The MAX4079 filters and buffers video (NTSC/PAL/DVB) and stereo audio signals from the MPEG decoder of a cable/satellite receiver, VCR/DVD player, or a TV to an external load. The MAX4079 has luma-chroma (Y-C) and composite (CVBS) video inputs with one Y-C and two CVBS outputs. All video inputs are AC-coupled with internal DC biasing on the chroma input and active clamps for the luma and composite.

The MAX4079 video reconstruction filters have a 6MHz cutoff frequency and 50dB attenuation at 27MHz. The filters are matched with flat group delay for standard-definition video. The video gain is fixed at +6dB to drive a 75Ω back-terminated load (150O) to unity gain. The video outputs can be either DC- or AC-coupled and are powered by a single +5V supply.

The MAX4079 audio amplifiers have differential inputs for optimum performance, but can be used with single-ended sources with external biasing. The audio channels have a fixed gain of +6dB and deliver 2.6V_RMS output with a differential input of ±1.85V. The audio amplifiers operate from a +9V to +12V single supply and feature an internal bias generator. An on-chip mixer also provides a mono output, with +3dB gain, derived from the left and right audio channels.

The MAX4079 is available in 24-pin TSSOP package, and is fully specified over the 0°C to +70°C commercial temperature range. The MAX4079 Evaluation Kit is available to help speed designs.

An evaluation kit is available: MAX4079EVKIT

Key Features

Applications/Uses

Integrated Video Reconstruction Filters—6MHz Lowpass Filter Supports NTSC, PAL, or DVB per ITU-601
Integrated Video and Audio Amplifiers
Integrated Video Input Clamps and Biasing
Mono Audio and CVBS Output to Drive External Modulator
+5V (Video) and +9V to +12V (Audio) Single-Supply Operation
Differential/Single-Ended Audio Inputs
24-Pin TSSOP Package

	AV Receivers
	Cable Receivers
	DVD Players
	Home Theater Systems
	Satellite Receivers
	Televisions

Key Specifications: Video Reconstruction Filters

Part Number

Poles

Filter Type

Signal Type

Passband Response

Stopband Attenuation

Channels

V_SUPPLY
(V)

Oper. Temp.
(°C)

Price

See Notes

MAX4079

SDTV

CVBS

S-Video

3dB to 7MHz

50dB at 27MHz

0 to +70

$1.35 @1k

See All Video Reconstruction Filters (47)

Diagram

Functional Diagram

Application Notes

Application Note 3823: Switching Video Using Analog Switches - MAX4079
Application Note 4287: Reconstructing Analog Video with the Maxim Video Filter Family - MAX4079

Evaluation Kits

MAX4079EVKIT

Reliability Reports

Show FIT data for:

Request Reliability Report for:

Software/Models

none

Ordering Information

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-4 of 4

MAX4079 Free
Sample Buy Status

Package: TYPE PINS FOOTPRINT

DRAWING CODE/VAR *

Temp RoHS/Lead-Free?
Materials Analysis

MAX4079CWG+

Active SOIC(W);24 pin;166 mm²
Outline Drawing: 21-0042 (PDF)
Land Pattern: 90-0182 (PDF)
Use pkgcode/variation: W24+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX4079CWG+T

Active

Land Pattern: Not Available

-40°C to +85°C See data sheet

MAX4079CUG+

Active TSSOP;24 pin;52 mm²
Outline Drawing: 21-0066 (PDF)
Land Pattern: 90-0118 (PDF)
Use pkgcode/variation: U24+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX4079CUG+T

Active TSSOP;24 pin;52 mm²
Outline Drawing: 21-0066 (PDF)
Land Pattern: 90-0118 (PDF)
Use pkgcode/variation: U24+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis

More Information

Product Ad: Download

Related Products

More Like This: View Product Families for Similar Products

See All Video Reconstruction Filters (48 Products)

Didn't Find What You Need?

Next Day Product Selection Assistance from Applications Engineers
Parametric Search
Applications Help

QuickView Technical Documents Ordering Info More Information

Description
Key Features
Applications/Uses
Key Specifications
Diagram

Data Sheet
Application Notes
Design Guides
Engineering Journals
Reliability Reports
Software/Models
Evaluation Kits

Price and Availability
Samples
Buy Online
Package Information
Lead-Free Information

Related Products
Notes and Comments
Evaluation Kits

Document Ref.: 19-3780; Rev 1; 2009-03-25
This page last modified: 2009-08-04