SYA75603ATWLVAO

Overview

The SYA75603ATWLVAO is a two-output PCIe clock buffer designed for automotive applications, compliant with PCIe Gen 1 through Gen 5 standards. It features ultra-low additive jitter of 10 fs for PCIe 5.0 and 20 fs for PCIe 3.0/4.0. The device operates on 1.8V, 2.5V, or 3.3V supplies (±10% tolerance) and includes embedded low-dropout regulators for superior power noise rejection. Outputs are Low Power HCSL with integrated 85Ω differential termination resistors. It supports frequencies up to 250 MHz and accepts DC-coupled HCSL or AC-coupled PECL, LVDS, and CML inputs.

Feature Summary

• Ultra-low additive jitter: 10 fs (PCIe 5.0), 20 fs (PCIe 3.0/4.0), and 52 fs (12 kHz to 20 MHz band).
• Two outputs with individual glitch-free enable/disable control pins (OE0b, OE1b).
• Embedded 85Ω differential termination resistors on LP-HCSL outputs.
• Automotive Grade 2 qualification with an operating temperature range of –40°C to +105°C.

Applications

• Advanced Driver Assistance Systems (ADAS)
• PCIe-based Solid State Drives (SSDs)
• Automotive Infotainment Systems

Procurement Notes

Verify the specific suffix 'VAO' corresponds to standard automotive qualification requirements for your design. Confirm that the 85Ω embedded termination matches the target PCB trace impedance specifications. Ensure the 3 mm x 3 mm VQFN package land pattern aligns with manufacturing capabilities.

Selection Notes

Select this component when designing for PCIe Gen 1 to Gen 5 architectures requiring strict jitter budgets in automotive environments. Choose between the 'A' variant (85Ω termination) or 'B' variant (100Ω termination) based on the system's differential impedance requirements. Verify input signal compatibility, as the device accepts both DC-coupled HCSL and AC-coupled PECL/LVDS/CML sources.

Part Context

This part belongs to the SYA75603A/B family of ultra-low additive jitter PCIe clock buffers. It shares functional characteristics with the four-output SYA75604A/B variants but provides only two output channels. All devices in this series utilize a 16-lead 3 mm x 3 mm VQFN package and are optimized for automotive reliability.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Microchip technical support for cross-reference information regarding alternative timing solutions.