SI5340C-D-GM

Product Overview

The SI5340C-D-GM from Skyworks Solutions Inc. is a single-circuit jitter attenuator and multiplexer for clock and timing systems. It incorporates a PLL and supports a maximum frequency of 1.028GHz. The device accepts LVCMOS, LVDS, LVPECL, and crystal inputs, and provides CML, HCSL, LVCMOS, LVDS, and LVPECL outputs. It has an input-to-output ratio of 4:4, with differential input and differential output capability. The IC operates from a 1.71V to 3.47V supply over a -40°C to 85°C temperature range and uses a surface-mount 44-VFQFN exposed-pad package, with a 44-QFN (7x7) device package designation.

Key Features

• Integrated PLL for clock timing and jitter attenuation/multiplexing functions
• Supports input formats: LVCMOS, LVDS, LVPECL, and crystal
• Supports output formats: CML, HCSL, LVCMOS, LVDS, and LVPECL
• Maximum operating frequency of 1.028GHz
• Single circuit with 4:4 input-to-output ratio and differential input/output support
• Supply voltage range of 1.71V to 3.47V
• Operating temperature range of -40°C to 85°C
• Surface-mount 44-VFQFN exposed-pad package

Applications

• Clock input selection and distribution in network infrastructure equipment
• Jitter attenuation and clock delivery in server and storage timing paths
• Reference clock multiplexing in test and measurement instruments
• Differential clock routing in embedded processing and communication boards

Design & Procurement Notes

Design and procurement considerations center on format compatibility, supply margin, and package handling. The input and output logic families must be matched to the host board's clock sources and receivers, including LVCMOS, LVDS, LVPECL, crystal, CML, and HCSL options. The 1.71V to 3.47V supply range should be checked against the available board rail, while the -40°C to 85°C range should be evaluated against enclosure and airflow conditions. The 4:4 ratio and differential input/output support define the clock selection and distribution topology, and the single-circuit count means one circuit is present per device. The exposed-pad 44-VFQFN package requires a compatible surface-mount footprint and attention to pad soldering. Confirm the 44-QFN (7x7) device package designation and 44-VFQFN exposed pad footprint.