CDCEL824

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community CDCEL824 SCAS945A – JUNE 2015 – REVISED SEPTEMBER 2015 CDCEL824 Programmable 2-PLL Clock Synthesizer 1 Features 1 Flexible Clock Driver – Three User-Definable Control Inputs [S0/S1/S2]: for example, Frequency Switching, Output Enable, or Power Down – Enables 0-PPM Clock Generation In-System Programmability and EEPROM – Serial Programmable Volatile Register – Nonvolatile EEPROM to Store Customer Settings Flexible Input Clocking Concept – External Crystal: 20 MHz to 30 MHz – Single-Ended LVCMOS up to 130 MHz Selectable Output Frequency up to 201 MHz Low-Noise PLL Core – PLL Loop Filter Components Integrated – Low Period Jitter (Typical 80 ps) 1.8-V Device Power Supply Temperature Range –40°C to 85°C Packaged in TSSOP 2 Applications Laser Distance Measurement Applications 3 Description The CDCEL824 is a modular PLL-based low-cost, high-performance, programmable clock synthesizer, multiplier, and divider. It generates up to four output clocks from a single input frequency. Each output can be programmed in-system for any clock frequency up to 201 MHz, using up to two independent configurable PLLs. The CDCEL824 has a separate output supply pins, VDDOUT, which are 1.8 V. The input accepts an external crystal or LVCMOS clock signal. In case of a crystal input, an on-chip load capacitor is adequate for most applications. The value of the load capacitor is programmable from 0 pF ...