Description
The ICS309 is a versatile serially-programmable, triple PLL with spread spectrum clock source. The ICS309 can generate any frequency from 250kHz to 200 MHz, and up to 6 different output frequencies simultaneously. The outputs can be reprogrammed on-the-fly, and will lock to a new frequency in 10 ms or less.

FEATUREs
• Packaged in 20-pin SSOP (QSOP)
• Highly accurate frequency generation
    • M/N Multiplier PLL: M = 1..2048, N = 1..1024
• Serially programmable: user determines the output frequency via a 3-wire interface
• Spread Spectrum frequency modulation for reduced system EMI
    • Center or Down Spread up to 4% total
    • Selectable 32 kHz and 120 kHz modulation
• Eliminates need for custom quartz oscillators
• Input crystal frequency of 5 - 27 MHz
• Input clock frequency of 3 - 50 MHz
• Output clock frequencies up to 200 MHz
• Operating voltage of 3.3 V
• Up to 9 reference clock outputs
• Power down tri-state mode
• Very low jitter