
DATASHEET
HDTV CLOCK SYNTHESIZER
ICS667-01
IDT / ICS HDTV CLOCK SYNTHESIZER
1
ICS667-01
REV E 051310
Description
The ICS667-01 is a low-cost, low jitter, high-performance
PLL clock synthesizer designed to produce the 74.176 MHz
clock necessary for HDTV systems. Using IDT’s patented
analog Phase-Locked Loop (PLL) techniques, the device
accepts a 27 MHz crystal or clock input. The zero ppm
synthesis error exactly locks the display to the digital
stream.
IDT manufactures the largest variety multimedia clock
synthesizers for all applications. Consult IDT to eliminate
crystals and oscillators from your board.
Features
Packaged in 8-pin SOIC
Pb (lead) free package, RoHS compliant
Input frequency of 27 MHz
Zero ppm synthesis error in output clock
3.3 V ±5% operating supply
Ideal for HDTV applications and oscillator manufacturers
Advanced, low power, sub-micron CMOS process
Block Diagram
CLK
74.17582418 MHz
Clock
Synthesis
and Control
Circuitry
27 MHz
crystal or
clock input
VDD
Clock
Buffer
OE
ICLK/X1
X2
27.0000 MHz
GND
2
Optional tuning crystal capacitors