SI53307-B-GM

Clock Buffers, Drivers Overview

The SI53307-B-GM is a universal fanout clock buffer featuring two differential outputs and a 2:1 input multiplexer. It accepts any-format inputs including LVPECL, LVDS, CML, HCSL, and LVCMOS across a frequency range of 1 MHz to 725 MHz. The device provides ultra-low additive jitter of 50 fs rms and includes built-in LDOs for high PSRR performance. It supports glitchless switching between input clocks, synchronous output enable, and loss of signal monitoring. The component operates on core (VDD) and output (VDDOX) supplies ranging from 1.71 V to 3.63 V and is housed in a 16-QFN package.

Clock Buffers, Drivers Feature Summary

• 2:1 Input Multiplexer with Glitchless Switching
• Ultra-Low Additive Jitter (Typical 50 fs rms)
• Universal Any-Format Input Support
• Built-in LDOs for High PSRR

Clock Buffers, Drivers Applications

• Clock distribution in noisy environments
• Redundant clocking applications
• System synchronization requiring low jitter

Clock Buffers, Drivers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and tape/reel options. Confirm RoHS compliance status and temperature range specifications (-40°C to +85°C) prior to procurement. Ensure design compatibility with the 16-QFN footprint and pin configuration.

Clock Buffers, Drivers Selection Notes

Select this model when a single-input buffer is insufficient and redundancy via a 2:1 mux is required. Verify that the application requires only two output channels, as other family members offer higher fan-out counts. Ensure the input clock format matches one of the supported universal formats and that the operating frequency falls within the 1 MHz to 725 MHz range.

Clock Buffers, Drivers Part Context

This component belongs to the Si5330x family of ultra-low additive jitter fanout clock buffers. It is designed to complement Skyworks' Si534x clocks, Si5332 clocks, and Si5xx oscillators to deliver end-to-end clock tree performance. The family shares common features such as built-in LDOs and universal input/output formatting capabilities.

Clock Buffers, Drivers Replacement Considerations

Direct replacements within the same family include the SI53301-B-GM and SI53302-B-GM if additional output channels are acceptable. For single-input configurations without mux requirements, consider the SI53306-B-GM. Verify pin compatibility and electrical specifications before substituting.