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Status

Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 696kB) Download   E-Mail

Description

The MAX9670/MAX9671 dual SCART matrices route audio and video signals between a set-top box decoder chip and two external SCART connectors under I²C control. Operating from a 3.3V supply and a 12V supply, the MAX9670/MAX9671 consume 70mW during quiescent operation and 471mW during average operation when driving typical signals into typical loads. Video input detection, video load detection, and a 2.5mW standby mode facilitate the design of intelligent, low-power set-top boxes. The MAX9670/MAX9671 audio section contains a buffered crosspoint to route audio inputs to audio outputs and programmable volume control from -62dB to 0dB in 2dB steps. The DirectDrive® output amplifiers create a 2VRMS full-scale audio signal biased around ground, 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 MAX9671 offers TV left and right audio inputs. The MAX9670/MAX9671 video section contains a buffered crosspoint to route video inputs to video outputs. The standard-definition video signals from the settop box decoder chip are lowpass filtered to remove out-of-band artifacts. The MAX9670/MAX9671 also support slow-switching and fast-switching signals. An interrupt signal from the MAX9670/MAX9671 informs the microcontroller when the system status has changed.

An evaluation kit is available:  MAX9671EVKIT   MAX9670EVKIT  

Key Features		Applications/Uses
70mW Quiescent Power Consumption 2.5mW Standby Mode Consumption Programmable Audio Gain Control of -62dB to 0dB (TV Audio Outputs) Clickless, Popless, DirectDrive Audio Video Input and Video Load Detection Video Reconstruction Filter with 10MHz Passband and 52dB Attenuation at 27MHz 3.3V and 12V Supply Voltages		DVD Players Set-Top Boxes TVs

Diagram

System Block Diagram

Evaluation Kits

MAX9671EVKIT MAX9670EVKIT

Design Guides

Video (PDF)

Reliability Reports

Reliability Report: MAX9670.pdf MAX9671.pdf Show FIT data for: MAX9670 MAX9671

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

MAX9670	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX9670CTL+			Active	TQFN;40 pin;37.2 mm² Outline Drawing: 21-0141 (PDF) Land Pattern: 90-0054 (PDF) Use pkgcode/variation: T4066+3*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9670CTL+T			Active	TQFN;40 pin;37.2 mm² Outline Drawing: 21-0141 (PDF) Land Pattern: 90-0054 (PDF) Use pkgcode/variation: T4066+3*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9671	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX9671CTH+			Active	TQFN;44 pin;50.4 mm² Outline Drawing: 21-0144 (PDF) Land Pattern: 90-0127 (PDF) Use pkgcode/variation: T4477+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9671CTH+T			Active	TQFN;44 pin;50.4 mm² Outline Drawing: 21-0144 (PDF) Land Pattern: 90-0127 (PDF) Use pkgcode/variation: T4477+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis

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