CS2000-CP-CZZR中文资料凌云逻辑数据手册PDF规格书

The CS2000-CP is an extremely versatile system clocking device that utilizes a programmable phase lock loop. The CS2000-CP 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 both frequency synthesis/clock generation from a stable reference clock as well as generation of a low jitter clock relative to an external noisy synchronization clock. The design is also unique in that it can generate low-jitter clocks relative to noisy external synchronization clocks at frequencies as low as 50 Hz. The CS2000-CP supports both I²C and SPI for full software control.

Features

♦ Delta-Sigma Fractional-N Frequency Synthesis

– Generates a Low Jitter 6 - 75 MHz Clock from an 8 - 75 MHz Reference Clock

♦ Clock Multiplier / Jitter Reduction

– Generates a Low Jitter 6 - 75 MHz Clock from a Jittery or Intermittent 50 Hz to 30 MHz Clock Source

♦ Highly Accurate PLL Multiplication Factor

– Maximum Error Less Than 1 PPM in High Resolution Mode

♦ I²C / SPI™ Control Port

♦ Configurable Auxiliary Output

♦ Flexible Sourcing of Reference Clock

– External Oscillator or Clock Source

– Supports Inexpensive Local Crystal

♦ Minimal Board Space Required

– No External Analog Loop-filter Components