SI53254A-D03AMR

Clock Buffers, Drivers Overview

The SI53254A-D03AMR is a Skyworks Solutions automotive-grade clock buffer featuring four HCSL outputs and dual differential inputs. It supports PCIe Gen1 through Gen6 common clock architectures at 100 MHz. The device operates on a 1.8 V to 3.3 V core supply with an operating temperature range of –40 °C to +105 °C. Additive jitter performance is specified at 0.05 ps RMS for Gen 3/4, 0.025 ps RMS for Gen 5, and 0.013 ps RMS for Gen 6. It includes internal 85 Ω or 100 Ω line matching selectable via the IMP_SEL pin and provides individual hardware control for output enable states.

Clock Buffers, Drivers Feature Summary

• Four HCSL outputs compliant with PCIe Gen1/2/3/4/5/6 specifications
• Dual-input capability with hardware MUX selection (CLK_SEL)
• Internal termination resistors selectable for 85 Ω or 100 Ω impedance
• Loss of Signal (LOS) indicator for reference source monitoring

Clock Buffers, Drivers Applications

• Automotive infotainment systems
• Advanced Driver Assistance Systems (ADAS)
• Electronic Control Units (ECU)
• Radar and LiDAR sensor timing

Clock Buffers, Drivers Procurement Notes

Verify that the specific ordering suffix 'R' corresponds to the tape and reel packaging format as defined in the manufacturer's official ordering guide. Confirm that the component meets AEC-Q100 qualification requirements for the intended automotive application environment before finalizing procurement specifications.

Clock Buffers, Drivers Selection Notes

Select this model when dual independent clock sources are required for redundancy or switching within a PCIe architecture. Ensure the design accommodates the 40-pin QFN package dimensions. Verify that the input signal format matches the supported AC or DC coupling options for LVDS, LVPECL, or HCSL formats based on the core voltage configuration.

Clock Buffers, Drivers Part Context

This component belongs to the Si5325x family, which also includes the eight-output Si53258 variant. Both devices share identical electrical characteristics and compliance standards but differ in output count and package pinout. The Si53254A-D03AMR specifically addresses designs requiring four buffered outputs with dual input flexibility.

Clock Buffers, Drivers Replacement Considerations

The Si53254A-D01AMR serves as a functional alternative if only a single clock input is required. For designs needing eight outputs, the Si53258A-D03AMR provides equivalent performance with increased fanout capability while maintaining the same package and electrical specifications.