SI5350C-B-GM1

Clock Generators, PLLs, Frequency Synthesizers Overview

The Skyworks SI5350C-B-GM1 is a factory-programmable CMOS clock generator featuring a dual PLL and MultiSynth architecture. It supports up to four non-integer-related output frequencies ranging from 2.5 kHz to 200 MHz with zero ppm error. The device operates on core and output supply voltages of 1.8 V, 2.5 V, or 3.3 V, consuming typically 21 mA at 4 outputs. It utilizes pin-based configuration and accepts 25 MHz or 27 MHz crystal references or external clock inputs.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates glitchless frequency changes using dual PLLs and fractional dividers
• Supports configurable spread spectrum for EMI reduction
• Provides user-configurable control pins for power down and frequency selection
• Enables level translation via separate core and output voltage supplies

Clock Generators, PLLs, Frequency Synthesizers Applications

• HDTV and DVD/Blu-ray systems
• Set-top boxes and audio/video equipment
• Networking and communication devices
• Servers and storage systems

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory programming parameters required for the application, as this part number indicates a custom configuration. Confirm that the 4-output 16-QFN package meets the board layout requirements. Ensure the design supports the necessary crystal or reference clock input specifications defined in the datasheet.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a fixed, factory-programmed solution is preferred over I2C programmable alternatives. The 16-QFN package provides four outputs, suitable for designs requiring fewer channels than the 8-output version but more than the 3-output MSOP variant. Verify compatibility with the required output frequencies and synchronization domains.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5350 family of clock generators. The 'C' suffix denotes support for both crystal and external clock inputs. The 'GM1' suffix identifies the 16-QFN package with four outputs. This model replaces discrete crystals and oscillators in compact electronic designs.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

SI5350C-Bxxxxx-GT (3 outputs, MSOP)

Clock Generators, PLLs, Frequency Synthesizers FAQ

What is the maximum output frequency supported by the SI5350C?

The device supports output frequencies up to 200 MHz.

Can the SI5350C generate synchronous clocks?

Yes, it can generate synchronous clocks locked to an external reference provided at the CLKIN pin.

How many unique frequencies above 112.5 MHz can be output simultaneously?

Only two unique frequencies above 112.5 MHz can be simultaneously output.