SI5395A-A-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The Skyworks SI5395A-A-GM is a single PLL jitter attenuator and clock multiplier featuring an external crystal reference. It provides 12 outputs with frequencies up to 1028 MHz using integer and fractional synthesis modes. The device accepts differential inputs from 8 kHz to 750 MHz or LVCMOS inputs from 8 kHz to 250 MHz. Operating voltages range from 1.71 V to 3.47 V, with a typical supply current of 150 mA and power dissipation of 1 W. It functions within a temperature range of -40 °C to +85 °C and is housed in a 64-QFN package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using fourth-generation DSPLL technology
• Supports enhanced hitless switching to minimize phase transients during input clock transitions
• Includes in-circuit programmable non-volatile memory for known power-up configurations
• Compatible with LVDS, LVPECL, LVCMOS, CML, and HCSL output formats

Clock Generators, PLLs, Frequency Synthesizers Applications

• 56G/112G PAM4 SerDes clocking
• OTN muxponders and transponders
• 10/40/100/200/400G networking line cards
• Medical imaging systems
• Test and measurement equipment

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering part number against the manufacturer's latest documentation to ensure correct configuration. Confirm that the external crystal reference requirement matches the system design, as this grade does not include an integrated oscillator. Check for RoHS compliance status and humidity sensitivity handling requirements before assembly.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when ultra-low jitter performance is required for high-speed serial data applications. Ensure the design accommodates an external crystal or oscillator on the XA/XB pins. Verify that the required output voltage levels (LVDS, LVPECL, etc.) are supported by the programmable output stages. Consider using ClockBuilder Pro software for initial configuration and NVM programming.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This device belongs to the Si5395 family, which combines DSPLL and Multi-Synth technologies. It serves as a drop-in replacement for the Si5345 series while offering improved jitter performance. The A-grade designation specifically indicates the use of an external crystal reference rather than an internal one.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The Si5395A-A-GM is documented as a drop-in compatible replacement for the Si5345A-A-GM. When substituting, verify that the external crystal specifications meet the stricter requirements of the Si5395A for optimal jitter performance.