CS2100CP-EZZ

Clock Generators, PLLs, Frequency Synthesizers Overview

The CS2100CP-EZZ is a fractional-N clock multiplier and jitter cleaner from the Cirrus Logic CS2000 series, housed in a 10-MSOP package. It generates a low-jitter 6 MHz to 75 MHz output clock from noisy or intermittent reference inputs ranging from 50 Hz to 30 MHz. The device utilizes a hybrid analog-digital PLL architecture with an internal Delta-Sigma Fractional-N synthesizer, eliminating the need for external loop filter components. It operates on a 3.1 V to 3.5 V supply and supports I²C/SPI control. The EZZ suffix denotes the Automotive-E grade, rated for -40°C to +105°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Hybrid Analog-Digital PLL Architecture: Combines a Digital PLL with a Delta-Sigma Fractional-N synthesizer for high-resolution multiplication without external analog filters.
• High Accuracy: Achieves maximum error less than 1 PPM in High-Resolution Mode.
• Flexible Reference Input: Supports external oscillators, crystals (XTI/XTO), or direct clock inputs (REF_CLK/CLK_IN).
• Configurable Outputs: Features a programmable PLL Clock Output and a configurable Auxiliary Output for status or buffered clocks.

Clock Generators, PLLs, Frequency Synthesizers Applications

• Generating low-jitter timing references for audio systems requiring precise sampling rates.
• Clock multiplication and jitter reduction for digital communication interfaces.
• System clocking for microcontrollers and processors requiring stable frequencies from noisy sources.

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the 'E' suffix indicates the Automotive-E temperature grade (-40°C to +105°C) as specified in the datasheet ordering information. Confirm the package is 10-MSOP. Check current availability status as Cirrus Logic products may have discontinuation notices; verify if this specific grade is currently active or obsolete through official manufacturer channels.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select the CS2100CP-EZZ when automotive-grade temperature tolerance (-40°C to +105°C) is required. Ensure the application needs a fractional-N synthesizer capable of handling input frequencies as low as 50 Hz. Verify that the system can accommodate the 3.1 V to 3.5 V supply voltage range and that I²C or SPI control lines are available for configuration.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Cirrus Logic CS2000 family of fractional-N clock multipliers. The base model CS2100-CP offers Commercial (-10°C to +70°C) and Automotive-D (-40°C to +85°C) grades. The CS2100CP-EZZ specifically represents the extended temperature variant designed for harsher automotive environments, sharing the same core functionality and pinout.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements within the same family include CS2100CP-CZZ (Commercial) and CS2100CP-DZZ (Automotive-D) if temperature ranges align with the application requirements. Cross-vendor substitutes require verification of compatible fractional-N architectures, MSOP-10 packaging, and similar electrical specifications.