SI53258A-D02AM

Clock Buffers, Drivers Overview

The Si53258A-D02AM is an automotive-grade, 1-input, 8-output PCIe Gen1/2/3/4/5/6 clock buffer. It provides eight differential HCSL outputs with internal termination selectable for 85 Ω or 100 Ω impedance via the IMP_SEL pin. The device operates on a core supply voltage of 1.71 V to 3.46 V and supports output driver supplies from 1.8 V to 3.3 V. It features excellent additive jitter performance, ranging from 0.013 ps RMS for Gen 6 to 0.05 ps RMS for Gen 3/4. The component includes individual hardware control pins for output enable/disable functionality and a Loss of Signal (LOS) indicator.

Clock Buffers, Drivers Feature Summary

• Eight differential HCSL outputs with selectable internal 85 Ω or 100 Ω line matching
• PCIe Gen 1 through Gen 6 compliant with low additive jitter (0.013 ps RMS at Gen 6)
• Automotive Grade 2 qualification (-40 °C to +105 °C operating temperature)
• Individual hardware Output Enable pins and Loss of Signal (LOS) status indicator

Clock Buffers, Drivers Applications

• Infotainment systems
• ADAS ECUs
• Radar sensors
• LiDAR sensors

Clock Buffers, Drivers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and tape-and-reel availability. Ensure that the selected variant matches the required input configuration and impedance settings for the target design.

Clock Buffers, Drivers Selection Notes

Select this component for designs requiring high-performance fanout buffers for PCIe Gen 1 through Gen 6 architectures. Consider the internal termination options when designing transmission lines to match either 85 Ω or 100 Ω requirements without external resistors.

Clock Buffers, Drivers Part Context

This part belongs to the Si5325x family, which also includes the Si53254 (4-output version). The Si53258 series is designed specifically for automotive applications, offering robust performance in demanding environments while maintaining compliance with strict PCIe timing specifications.

Clock Buffers, Drivers Replacement Considerations

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