MK2745-21SLF datasheet, PDF - EEWORLD Datasheet

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MK2745-21SLF: DescriptionDVD/MPEG CLOCK SOURCE; File Size137KB，6 Pages; ManufacturerIDT (Integrated Device Technology, Inc.); Websitehttp://www.idt.com/

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MK2745-21SLF Overview

DVD/MPEG CLOCK SOURCE

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DATASHEET

DVD/MPEG CLOCK SOURCE

Description

The MK2745-21 is a low-cost, low-jitter, high-performance

clock synthesizer for DVD and other MPEG 2-based

applications. Using analog Phase-Locked Loop (PLL)

techniques, the device accepts a 27 MHz fundamental

mode crystal or clock input to produce multiple audio output

clocks, a processor clock, the processor clock divided by

two, 27 MHz, 24.576 MHz, and a selectable audio clock.

The audio clocks are frequency-locked to the 27 MHz using

our patented zero ppm error techniques. This allows audio

and video to track exactly, thereby eliminating the need for

large buffer memory.

IDT manufactures a large variety of DVD, Set-top Box, and

multimedia clock synthesizers for all applications. Consult

IDT to eliminate crystals and oscillators from your board.

MK2745-21

Features

•

Packaged in a 16-pin narrow (150 mil) SOIC

Ideal for LuxSonor’s DVD solutions

3.3 V upgrade to the MK2744

Patented zero ppm audio clock error for 256x and 384x

sampling rates

and 48 kHz in most DACs

•

Selectable audio sampling frequencies support 32, 44.1,

•

VDD

27 MHz fundamental crystal or clock input

Eight selectable processor frequencies

Fixed clocks of 27 and 24.576 MHz

Zero ppm in all clocks

25 mA output drive capability at TTL levels

Advanced, low-power, sub-micron CMOS process

Operating voltage of 3.0 V to 5.5 V

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