MK2716 Datasheet, PDF (1/4 Pages) Integrated Circuit Systems – HDTV Clock Synthesizer

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•[phone]tel•[phone]fax