
Cirrus Logic
General Description
The CS2300-03 is an extremely versatile system clocking device that utilizes a programmable phase lock loop. The CS2300-03 is based on a hybrid analog-digital PLL architecture comprised of a unique combination of a Delta-Sigma Fractional-N Frequency Synthesizer and a Digital PLL. This architecture allows for generation of a low-jitter clock relative to an external noisy synchronization clock with frequencies as low as 23 kHz. The CS2300-03 is a CS2300-OTP device that has been preconfigured at the factory. There are three hardware configuration pins available for mode and feature selection.
FEATUREs
♦ Clock Multiplier / Jitter Reduction
– Generates a Low Jitter 6 - 75 MHz Clock from a Jittery 23 kHz to 30 MHz Clock Source
♦ Internal LCO Reference Clock
♦ 128 Hz Loop Filter Bandwidth
♦ Selectable Multiplication Factors
– 1x, 4x, 128x, and 256x
♦ Selectable Aux Output Pin
♦ Minimal Board Space Required
– No External Analog Loop-filter Components