General Description

The ICS1523 is a low-cost, high-performance frequency generator. It is well suited to general purpose phase controlled clock synthesis as well as line-locked and genlocked high-resolution video applications. Using ICS’s advanced low-voltage CMOS mixed-mode technology, the ICS1523 is an effective phase controlled clock synthesizer and also supports video projectors and displays at resolutions from VGA to beyond UXGA.

Features

• Low Jitter

• Wide input frequency range

• 15.734 kHz to 100 MHz

• PECL differential outputs

• Up to 250 MHz

• SSTL_3 Single-ended clock outputs

• Up to 150 MHz

• Dynamic Phase Adjust (DPA) for all outputs

• I2C controlled phase adjustment

• Full clock cycle down to 1/64 of a clock

• Double-buffered control registers

• External or internal loop filter selection

• COAST input can disable charge pump

• 3.3 VDD

• 5 volt Tolerant Inputs

• Industry Standard I2C-bus programming interface

• PLL Lock detection via I2C or LOCK/REF output pin

• 24-pin 300-mil SOIC package

• Available in Pb-free packaging

Applications

• Frequency synthesis

• LCD monitors, video projectors and plasma displays

• Genlocking multiple video subsystems