SI5324D-C-GMR

Overview

The SI5324D-C-GMR is a low-bandwidth, jitter-attenuating precision clock multiplier utilizing Skyworks' third-generation 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 supports digitally programmable loop bandwidths between 4 Hz and 525 Hz, configurable signal formats including LVPECL, LVDS, CML, and CMOS, and operates on a single supply of 1.8 V ±5%, 2.5 V ±10%, or 3.3 V ±10% within an operating 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 from 4 Hz to 525 Hz with integrated loop filter
• Configurable output signal formats: LVPECL, LVDS, CML, and CMOS

Applications

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

Procurement Notes

Verify the 'R' suffix indicates tape-and-reel packaging rather than tray packaging when sourcing components. Confirm the specific speed grade associated with the 'D' designation against the manufacturer's ordering guide to ensure compliance with required frequency limits. Ensure the voltage rating matches the system's nominal supply voltage requirements.

Selection Notes

Select this component for applications requiring sub-1 ps jitter performance with narrow loop bandwidths. Verify that the required output frequency falls within the standard 945 MHz range or the specific 1.4 GHz capability. Ensure the design accommodates the 36-lead QFN package dimensions and provides adequate thermal dissipation given the junction-to-ambient thermal resistance characteristics.

Part Context

The SI5324D-C-GMR belongs to the Si5324 family of any-frequency precision clock multipliers. This series eliminates the need for external VCXO and loop filter components through highly integrated DSPLL technology. The device supports hitless input clock switching with phase build-out and includes alarm outputs for Loss of Lock (LOL), Loss of Signal (LOS), and Frequency Offset Status (FOS).

Replacement Considerations

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