
Integrated Device Technology
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