MAX9597 Maxim Integrated Products, MAX9597 Datasheet

MAX9597

Manufacturer Part Number

MAX9597

Description

Low-Power Audio/Video Interface

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX9597.pdf (32 pages)

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The MAX9597 single SCART interface routes audio and

video signals between a set-top box decoder chip and

an external SCART connector under I

Operating from a 3.3V supply and a 12V supply, the

MAX9597 consumes 53mW during quiescent operation

and 254mW during average operation when driving

typical signals into typical loads.

The MAX9597 audio section contains left and right audio

paths with an independent operational amplifier at the

inputs. The DirectDrive

eliminating the need for bulky output capacitors and

reducing click-and-pop noise. The zero-cross detection

circuitry also further reduces clicks and pops by

enabling audio sources to switch only during a zero-

crossing.

The MAX9597 video section contains 4 channels of

video filter amplifiers. The standard-definition video sig-

nals from the set-top box decoder chip are lowpass fil-

tered to remove out-of-bandwidth artifacts. The

MAX9597 also supports slow-switching and fast-switch-

ing signals.

The MAX9597 is available in a compact 28-pin thin

QFN package and is specified over the 0°C to +70°C

commercial temperature range.

19-4159; Rev 1; 10/08

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.

RMS

full-scale audio signal biased around ground,

________________________________________________________________ Maxim Integrated Products

General Description

output amplifiers create a

STB CHIP

ENCODER

STEREO

VIDEO

AUDIO

DAC

μC

Low-Power Audio/Video Interface

RGB, Y/C, CVBS

STEREO AUDIO

DIFFERENTIAL

SINGLE OR

C control.

for Single SCART Connectors

12V

SLOW SWITCHING

FAST SWITCHING

AND REGISTERS

WITH DirectDrive

CHARGE PUMP

VIDEO FILTERS

3.3V

C INTERFACE

MAX9597

OUTPUTS

AUDIO

♦ 53mW Quiescent Power Consumption

♦ 5µW Shutdown Consumption

♦ Audio Operational Amplifiers to Create Input

♦ Clickless/Popless, DirectDrive Audio

♦ Video Reconstruction Filter with 10MHz Passband

♦ 3.3V and 12V Supply Voltages

3.3V

+ Denotes a lead-free/RoHS-compliant package.

* EP = Exposed pad.

DirectDrive is a registered trademark of Maxim Integrated

Products, Inc.

Filters

and 43dB Attenuation at 27MHz

AUD

MAX9597CTI+

Set-Top Boxes

AV Receivers

GND

PART

FAST AND SLOW SWITCHING

RGB, Y/C, CVBS

L/R AUDIO

System Block Diagram

Ordering Information

TEMP RANGE

0°C to +70°C

SCART

TVs

DVD Players

Applications

PIN-PACKAGE

28 TQFN-EP*

Features

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