SI53306-B-GMR

Clock Buffers, Drivers Overview

The SI53306-B-GMR is a universal fanout clock buffer from the Si5330x family, featuring four differential outputs and a single input. It supports any-format inputs including LVPECL, LVDS, CML, HCSL, and LVCMOS across a frequency range of 1 MHz to 725 MHz. The device delivers ultra-low additive jitter with a typical value of 50 fs rms. Built-in low-dropout regulators (LDOs) provide high power supply rejection ratio (PSRR). It operates on core and output supplies ranging from 1.71 V to 3.63 V, housed in a 16-QFN package.

Clock Buffers, Drivers Feature Summary

• Ultra-low additive jitter performance of 50 fs rms
• Universal input support for LVPECL, LVDS, CML, HCSL, and LVCMOS formats
• Built-in LDOs for enhanced power supply noise rejection
• Flexible output drivers supporting multiple signal formats via pin-strapping

Clock Buffers, Drivers Applications

• Clock distribution networks requiring low-jitter buffering
• Redundant clocking systems
• Mixed-voltage digital systems requiring format translation

Clock Buffers, Drivers Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm packaging configuration. The 'R' suffix indicates tape and reel options, while absence may denote tray packaging. Confirm RoHS compliance status and temperature range specifications (-40°C to +85°C) prior to procurement to ensure alignment with environmental requirements.

Clock Buffers, Drivers Selection Notes

Select this component for applications requiring a single-input, four-output buffer with universal format compatibility. Ensure the input clock frequency falls within the 1 MHz to 725 MHz range. Verify that the required output voltage levels (1.8 V, 2.5 V, or 3.3 V) match the available VDDOX supply options. Consider the 16-QFN package dimensions for PCB layout constraints.

Clock Buffers, Drivers Part Context

This part belongs to the Si5330x family of ultra-low additive jitter fanout buffers. The family includes variants with up to 10 outputs, dual-bank configurations, and 2:1 input multiplexers. The SI53306 specifically provides a simplified single-input architecture without an input mux, distinguishing it from higher-pin-count siblings like the SI53301 or SI53302.

Clock Buffers, Drivers Replacement Considerations

Direct parameter-equivalent replacements within the same family include other Si5330x models such as the SI53307-B-GM for two outputs or SI53303-B-GM for five outputs, depending on channel count requirements. Cross-family substitution requires verification of jitter specs, input/output formats, and package compatibility.