ICS1522M中文資料ICST數(shù)據(jù)手冊PDF規(guī)格書

General Description

The ICS1522 is a very high performance monolithic phase locked loop (PLL) frequency synthesizer. Utilizing ICS’s advanced CMOS mixed-mode technology, the ICS1522 provides a low-cost solution for high-end video clock generation where synchronization to an external video source is required.

The ICS1522 has differential video clock outputs (CLK+ and CLK-) that are compatible with industry standard video DAC.

Operating frequencies are fully programmable with direct control provided for reference divider, feedback divider and postscaler.

Features

? Serial programming: Feedback and reference divisors, VCO gain, phase comparator gain, relative phase and test modes.

? Supports high-resolution graphics - Differential CLK out-puts to 230 MHz

? Eliminates need for multiple ECL output voltage controlled crystal oscillators and external components

? Fully-programmable synthesizer capability - not just a clock multiplier

? Line-locked clock generation capability; 15 - 100 kHz

? External feedback loop capability allows graphics system to be used as the feedback divisor with synchronous switchover to internal feedback

? Small footprint 24-pin SOIC

? Coarse and fine phase adjustment permits precise clocking in video recovery application

Applications

? LCD Projector Systems

? Multimedia video line locking

? Genlock applications