MAXIM MAX4079 Complete Audio Video Backend Solution Data Sheet
Summary
The MAX4079 is a highly integrated chip providing a complete audio/video backend solution for signal processing and distribution. It features advanced capabilities for filtering, buffering, and amplifying composite video signals (CVBS) and stereo audio across NTSC, PAL, and DVB formats. This manual contains comprehensive technical specifications detailing electrical characteristics, performance ratings, and functional guidelines for designing complex systems. Ideal for electronics engineers developing home theater equipment, AV receivers, satellite receivers, and DVD players requiring reliable, high-quality video output.
Page 1 Text Content
19-3780; Rev 1; 3/09
EVALUATION KIT AVAILABLE Complete Audio/Video
Backend Solution
General Description Features
The MAX4079 filters and buffers video (NTSC/PAL/DVB) Integrated Video Reconstruction Filters—6MHz and stereo audio signals from the MPEG decoder of a
Lowpass Filter Supports NTSC, PAL, or DVB per
cable/satellite receiver, VCR/DVD player, or a TV to an
ITU-601
external load. The MAX4079 has luma-chroma (Y-C)
and composite (CVBS) video inputs with one Y-C and Integrated Video and Audio Amplifiers
two CVBS outputs. All video inputs are AC-coupled with
Integrated Video Input Clamps and Biasing
internal DC biasing on the chroma input and active
clamps for the luma and composite. Mono Audio and CVBS Output to Drive External Modulator
The MAX4079 video reconstruction filters have a 6MHz cutoff frequency and 50d B attenuation at 27MHz. The +5V (Video) and +9V to +12V (Audio) Single- filters are matched with flat group delay for standard-
Supply Operation
definition video. The video gain is fixed at +6d B to drive
Differential/Single-Ended Audio Inputs
a 75Ω back-terminated load (150Ω) to unity gain. The video outputs can be either DC- or AC-coupled and are
24-Pin TSSOP Package
powered by a single +5V supply. The MAX4079 audio amplifiers have differential inputs for optimum performance, but can be used with single-
Ordering Information
ended sources with external biasing. The audio chan- nels have a fixed gain of +6d B and deliver 2.6VRMS PART TEMP RANGE PIN-PACKAGE output with a differential input of ±1.85V. The audio
MAX4079CUG+ 0°C to +70°C 24 TSSOP
amplifiers operate from a +9V to +12V single supply
+Denotes lead(Pb)-free package.
and feature an internal bias generator. An on-chip mixer also provides a mono output, with +3d B gain, derived from the left and right audio channels.
Functional Diagram
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 AUDV REXT
available to help speed designs.
YIN CLAMP +6d B YOUT
Applications FILTER
Satellite Receivers
BIAS LP
CIN +6d B COUT
Cable Receivers NETWORK FILTER
Home Theater Systems
+6d B CVBSOUT1
DVD Players LP
CVBSIN CLAMP
FILTER
AV Receivers +6d B CVBSOUT2
Televisions
+6d B ROUT1
+6d B ROUT2
+3d B MONO
Pin Configuration appears at end of data sheet. +6d B LOUT1
MAX4079 +6d B LOUT2
GAUD CBYPASS
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.
Page Summary Contents For MAXIM MAX4079 Complete Audio Video Backend Solution Data Sheet
Manual Details
| Brand | Audio |
|---|---|
| Pages | 15 |
| File Size | 272.39 KB |
| Published | May 15, 2026 |
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Frequently Asked Questions
Is the unit lead-free and what package is used?
Yes, it features a Pb-free 24-Pin TSSOP package.