This document is a datasheet for the Si52111 B5/B6 precision clock jitter attenuator. Here's a summary of the key information:

Key Features & Function:

️· Precision Clock Jitter Attenuator: Designed to reduce jitter and improve signal quality for high-speed data applications.
️· Differential Output: Provides a 0.7V differential clock output at 100 MHz.
️· Input Options: Supports both 25 MHz crystal input *or* a 25 MHz clock input.
️· Low Jitter Performance: Aimed at minimizing timing errors in data transmission.

Electrical Characteristics (Highlights from tables):

️· Supply Voltage: 3.3V
️· Output Voltage: 0.7V differential
️· Output Frequency: 100 MHz
️· Crystal/Clock Input: 25 MHz
️· AC Parameters: Detailed tables specify jitter, rise/fall times, output swing, and propagation delay.

Package Options:

️· 10-Pin TDFN

️· 8-Pin TSSOP

Important Considerations:

️· Crystal Loading: The datasheet provides detailed instructions and formulas for calculating appropriate load capacitors for optimal crystal operation. Proper crystal loading is crucial for low ppm (parts per million) frequency stability.
️· Test Setup: Specific test load configurations are provided for accurate measurement of AC parameters.
️· Pin Descriptions: Clear definitions of each pin on both package types.



This datasheet is for engineers and technical professionals who are designing and implementing high-speed data communication systems and require a low-jitter clock source.