SI5324A-C-GMR

Overview

The SI5324A-C-GMR is a low-bandwidth, jitter-attenuating precision clock multiplier utilizing Skyworks DSPLL technology. It accepts two input clocks from 2 kHz to 710 MHz and generates two output clocks ranging from 2 kHz to 945 MHz, with select frequencies reaching 1.4 GHz. The device features ultra-low jitter outputs as low as 290 fs rms (12 kHz–20 MHz) and 320 fs rms (50 kHz–80 MHz). It operates on a single supply of 1.8 V ±5%, 2.5 V ±10%, or 3.3 V ±10% within an ambient temperature range of –40 °C to +85 °C.

Feature Summary

• Generates any frequency from 2 kHz to 945 MHz and select frequencies to 1.4 GHz from inputs up to 710 MHz
• Ultra-low jitter performance: 290 fs rms (12 kHz–20 MHz) and 320 fs rms (50 kHz–80 MHz)
• Digitally programmable loop bandwidth between 4 Hz and 525 Hz for optimized jitter attenuation
• Supports hitless input clock switching with phase build-out and digital hold operation

Applications

• Broadcast video including 3G/HD/SD-SDI and Genlock systems
• Packet Optical Transport Systems (P-OTS) and MSPP
• SONET OC-48/192/768 and SDH/STM-16/64/256 line cards
• GbE/10/40/100G Synchronous Ethernet (LAN/WAN)
• Data converter clocking and wireless base stations

Procurement Notes

Verify the specific speed grade suffix 'A' against the ordering guide to confirm frequency limits and electrical characteristics. Confirm package type is 36-lead QFN. Check for moisture sensitivity handling requirements during storage and assembly.

Selection Notes

Select based on required output frequency range and jitter specifications. Ensure the chosen supply voltage (1.8V, 2.5V, or 3.3V) matches the system design. Verify that the input clock frequencies fall within the 2 kHz to 710 MHz range. Consider the need for I2C or SPI interface compatibility.

Part Context

The SI5324A-C-GMR belongs to the Si5324 family of any-frequency precision clock multipliers and jitter attenuators. It is part of Skyworks' third-generation DSPLL technology lineup, designed to eliminate external VCXO and filter components. The 'GMR' suffix indicates a reel packaging format.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.