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CS2500

Cirrus Logic

Fractional-N Clock Synthesizer and Multiplier

CS2500 Fractional-N Clock Synthesizer and Multiplier Features • I²C/SPI control port • Clock frequency synthesizer i...


Cirrus Logic

CS2500

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Description
CS2500 Fractional-N Clock Synthesizer and Multiplier Features I²C/SPI control port Clock frequency synthesizer incorporating delta-sigma fractional-N analog PLL — Generates low-jitter 6–75 MHz clock (CLK_OUT) from 8–75 MHz timing reference (REF_CLK_IN) Fractional clock multiplier and jitter reduction using hybrid analog/digital PLL — Generates low-jitter 6–75 MHz clock (CLK_OUT), synchronized to a 50 Hz–30 MHz low-quality or intermittent frequency reference (CLK_IN) Configurable auxiliary clock/status output Minimal board space required — No external analog loop-filter components Pin-to-pin, register map, and control compatible with CS2000 and CS2200 Single-supply operation at 1.8 V or 3.3 V Applications Flexible timing reference source — External clock or external crystal High resolution PLL ratio (1 PPM) 40 psRMS period jitter Glitchless clock output generated from intermittent input Automotive audio systems Digital audio systems Network and USB audio interfaces IoT sensor and transducer systems Embedded systems CS2500 XTAL_ IN/REF_CLK_ IN XTAL_ OUT Divi der XTAL Inte rface CLK_IN Hyb rid PLL Core Fractio nal-N Ana log PLL Ratio (N) Fractio nal-N Digital FLL Timing ref erence Frequency reference CLK _OUT Unlock indicator I2C/S PI Control Port VDD GND CLK_O UT AUX_O UT I2C_ADDR/SPI_CS I2C_SCL/S PI_SCK I2C_SDA/S PI_SDI Advanced Product Information This document contains information for a product under development. Cirrus Logic r...




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