SI53301-B0002-GMR

Clock Buffers, Drivers Overview

The SI53301-B0002-GMR is a universal fanout clock buffer from the Si5330x family, featuring ultra-low additive jitter of 50 fs rms. It accepts any-format inputs (LVPECL, LVDS, CML, HCSL, LVCMOS) and provides up to 10 outputs across two banks. The device includes a 2:1 input multiplexer with glitchless switching, synchronous output enable, and Loss of Signal (LOS) monitors. Built-in LDOs ensure high PSRR. Operating frequencies range from 1 MHz to 725 MHz. It supports independent output format selection and flexible clock division (/1, /2, /4).

Clock Buffers, Drivers Feature Summary

• Ultra-low additive jitter: 50 fs rms typical.
• Universal input support for LVPECL, LVDS, CML, HCSL, and LVCMOS.
• Integrated 2:1 input mux with glitchless switching capability.
• Built-in LDOs for high power supply noise rejection (PSRR).

Clock Buffers, Drivers Applications

• Clock distribution in noisy environments requiring low jitter.
• Redundant clocking systems utilizing input mux and LOS monitoring.
• Format translation between differential and single-ended clock signals.

Clock Buffers, Drivers Procurement Notes

Verify the specific ordering suffix B0002 against the manufacturer's current datasheet to confirm pinout and configuration details. Ensure the GMR suffix matches the required tape-and-reel packaging quantity. Confirm RoHS compliance status via the official certificate of conformance before procurement.

Clock Buffers, Drivers Selection Notes

Select this component when an application requires a 2:1 input mux with glitchless switching and LOS indication. Verify that the input frequency falls within the 1 MHz to 725 MHz range. Ensure the required output formats (LVPECL, LVDS, etc.) are supported by the available SFOUTx pin strapping options.

Clock Buffers, Drivers Part Context

This part belongs to the Si5330x family of universal buffers. It is designed to pair with Si534x clocks, Si5332 clocks, and Si5xx oscillators to deliver end-to-end clock tree performance. It serves as a low-jitter distribution stage in complex digital systems.

Clock Buffers, Drivers Replacement Considerations

Direct replacements within the Si5330x family include the SI53302-B0002-GMR (10 outputs) or SI53304-B0002-GMR (6 outputs without per-bank sync OE). Verify package compatibility (32-QFN vs 44-QFN) and feature requirements such as LOS and mux presence.

Clock Buffers, Drivers FAQ

Does the SI53301 support glitchless switching?

Yes, the SI53301 features glitchless switching between two valid input clocks, preventing runt pulses during switchover.

What is the minimum operating frequency?

The device supports a wide frequency range starting from 1 MHz.

How is the input clock format selected?

The universal input stage automatically accommodates various formats including LVPECL, LVDS, CML, HCSL, and LVCMOS through appropriate termination networks.