MK2716

HDTV Clock Synthesizer

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

I C R O

• 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

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.

Block Diagram

Description

Features

Clock

Buffer

VDD GND

Clock Synthesis

and Control

Circuitry

27 MHz

crystal or

clock

Output

Buffer

CLK

74.17582418 MHz or

74.2500 MHz

27.0000 MHz

Output

Buffer

2

SEL

X1

X2