SY75603ATWL

Clock Buffers, Drivers Overview

The SY75603ATWL is a PCIe clock buffer featuring two outputs compliant with PCIe Gen 1 through 5. It delivers ultra-low additive jitter of 10 fs for PCIe 5.0 and supports frequencies up to 250 MHz. The device incorporates embedded 85Ω differential termination resistors and accepts DC-coupled HCSL inputs alongside AC-coupled PECL, LVDS, and CML signals. Operating voltages include 1.8V, 2.5V, and 3.3V (±10%). It utilizes a 16-lead 3 mm x 3 mm VQFN package and functions within an extended temperature range of –40°C to +105°C.

Clock Buffers, Drivers Feature Summary

• Ultra-low additive jitter: 10 fs (PCIe 5.0), 20 fs (PCIe 3.0/4.0)
• Embedded 85Ω differential series termination resistors
• Glitch-free individual output enable control pins
• Supports 1.8V, 2.5V, and 3.3V supplies with ±10% tolerance

Clock Buffers, Drivers Applications

• PCIe Graphics Cards
• PCIe Based SSD drives
• Servers

Clock Buffers, Drivers Procurement Notes

Verify the 'A' suffix indicates 85Ω embedded termination and the 'WL' suffix corresponds to the 16-lead 3x3mm VQFN package. Confirm the datasheet revision matches the required specifications. Ensure supply voltage compatibility with the target system's 1.8V, 2.5V, or 3.3V rails.

Clock Buffers, Drivers Selection Notes

Select this model over the 'B' variant when the design requires 85Ω embedded termination resistors rather than 100Ω. The SY75603ATWL provides two outputs with dedicated glitch-free enable controls, distinguishing it from the non-enable SY75602A. Verify that the 3 mm x 3 mm VQFN footprint fits the PCB layout constraints.

Clock Buffers, Drivers Part Context

This component belongs to the SY75602A/02B/603A/03B/604A/04B family of industry-leading PCIe clock buffers. The SY75603ATWL specifically offers two outputs in a compact VQFN package, bridging the gap between the smaller two-output SY75602A and the four-output SY75604A variants.

Clock Buffers, Drivers Replacement Considerations

SY75603BTWL serves as a direct alternative if 100Ω embedded termination is required instead of 85Ω.