General Description

The ICS9120-45 is a high performance frequency generator designed to support the clock requirements of communication and audio interfaces.

High accuracy, low-jitter PLLs meet the -96dB signal-tonoise ratios required by 16-bit audio systems. Fast output clock edge rates minimize board induced jitter.

The on-chip XTAL oscillator accuracy is better than ±100ppm for an AT cut, 18pF load crystal with initial accuracy of ppm plus TC, aging and load variation of ±20ppm each assuming 33pF ±5 external load capacitors.

Features

• Generates 32MHz, 40MHz and 48MHz

• Single 10 MHz crystal reference

• 49.92 MHz accuracy tracks 40.32 MHz reference

• 80ps one sigma jitter maintains 16-bit performance

• Output rise/fall times less than 1.5ns

• On-chip loop filter components

• 3.0-5.5V supply range

• 8-pin, 150-mil SOIC package