ClockCS2000 Family Generation and Multiplication/Jitter Reduction Solution - Cirrus Logic - #1

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CIRRUS LOGC CS2000-CP Fractional-N Clock Synthesizer & Clock Multiplier Features General Description 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 ana-log-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 génération from a stable référence clock as well as génération of a low-jitter clock relative to an external noisy synchronization clock. The design is also unique in that it can générale low-jitter docks relative to noisy external synchroniza­tion docks at frequencies as low as 50 Hz. The CS2000-CP supports both PC and SPI forfull software controL The CS2000-CP is available in a 10-pin MSOP pack­age in Commercial (~10°C to +7(TC) and Automotive (-40°C to +85*C) grades, Customer development kits are also available for device évaluation. Please see "Ordering Information" on page 36 for complète détails. ♦ Delta-Sigma Fractional-N Frequency Synthesis - Générâtes a Low Jitter 6 - 75 MHz Clock from an 8 - 75 MHz Référence Clock ♦ Clock Multiplier / Jitter Réduction - Générâtes a Low Jitter 6 - 75 MHz Clock from a Jittery or Intermittent 50 Hz to 30 MHz Clock Source ♦ Hîghly Accurate PLL Multiplication Factor — Maximum Error Less Than 1 PPM in High-Resolution Mode ♦ l2C™/SPI™ControlPort ♦ Configurable Auxiliary Output ♦ Flexible Sourcing of Référence Clock - External Oscillator or Clock Source — Supports Inexpensive Local Crystal ♦ Minimal Board Space Required — No External Analog Loop-filter Components 3,3 V PC/SPi Software Çontrol PC/SPI PLLQuIpuI_ Auxiliary Output LOCK indicaux 8 MHz to 75 MHz Low-Jitter Timlng Référence Al Fractional-N Frequency Synthesizer 6 to 75 MHZ PLL Output Ortput to InpU C*x*Rato " 50 Hz to 30 MHz Frequency Référence CXrfjXillo tnpm ClOCK RatfO CIRRUS LOGIC* Copyright © Cirrus Logic, Inc 2010 MAY 10 http://www.dmjs.com (** Heseived) DS761F2