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MK2716S

HDTV Clock Synthesizer

Integrated Circuit Systems 

I CR O C LOC K

Description

The MK2716 is a low cost, low jitter, high

performance clock synthesizer designed to

produce the 74.176 MHz and 74.25 MHz clocks

necessary for HDTV systems. Using analog Phase-

Locked Loop (PLL) techniques, the device accepts

a 27 MHz clock or fundamental crystal input. The

zero ppm synthesis error exactly locks the display

to the digital stream.

MicroClock offers a wide variety of clock

synthesizers for desktop and portable computers,

and multimedia systems. Consult MicroClock to

eliminate crystals and oscillators from your board.

MK2716

HDTV Clock Synthesizer

Features

• Packaged as 8 pin SOIC or die

• Input frequency of 27 MHz

• Zero ppm synthesis error in output clock

• 3.3 V or 5.0 V±10% operating supply

• 25 mA drive capability at TTL levels

• Ideal for HDTV applications and oscillator

manufacturers

• Advanced, low power CMOS process

• Custom masks easily and quickly made

Block Diagram

SEL

27 MHz

crystal or

clock

X1

X2

VDD GND

2

Clock

Buffer

Clock Synthesis

and Control

Circuitry

Output

Buffer

CLK

74.17582418 MHz or

74.2500 MHz

Output

Buffer

27.0000 MHz

MDS 2716 B

1

Revision 062599

Printed 11/16/00

MicroClock Division of ICS • 525 Race Street • San Jose • CA • 95126•(408)295-9800tel•(408)295-9818fax

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