PI6CG334Q2ZHWEX

Overview

The PI6CG334Q2ZHWEX is a four-output PCIe Gen 6 clock generator designed for automotive applications. It accepts a 25MHz crystal or CMOS input to generate four differential low-power HCSL outputs at 100MHz with on-chip termination. The device features very-low jitter, supporting PCIe Gen 1 through Gen 6 standards. It includes an SMBus interface for configuration of slew rate, amplitude, and spread-spectrum options. Operating within a supply voltage range of 3.135V to 3.465V, it is qualified to AEC-Q100 Grade 2 and housed in a 32-WQFN (5x5mm) package.

Feature Summary

• Four differential low-power HCSL outputs with integrated on-chip termination
• PCIe Gen 1/2/3/4/5/6 compliant with RMS jitter <0.04ps for Gen 6 common clock
• Configurable via SMBus for output amplitude, slew rate, and spread-spectrum selection
• AEC-Q100 Grade 2 qualified for automotive environments (-40°C to +105°C)

Applications

• Automotive PCIe system clock generation
• High-speed data transfer interfaces requiring low-jitter timing
• Systems utilizing PCIe Gen 1 through Gen 6 protocols

Procurement Notes

Verify the component meets AEC-Q100 Grade 2 qualification requirements for automotive use. Confirm the ZHW package dimensions align with PCB layout specifications. Ensure SMBus address configuration matches system design constraints. Check that power supply voltages remain within the 3.135V to 3.465V operating range during all operational states.

Selection Notes

Select this component when designing automotive systems requiring PCIe Gen 6 compliance with strict jitter limits. The integrated on-chip termination reduces external component count compared to discrete solutions. Consider the SMBus configurability if dynamic adjustment of output parameters like slew rate or spread-spectrum is required for EMI optimization.

Part Context

This part belongs to the PI6CG334Q family of clock generators from Diodes Incorporated. The '2' suffix indicates AEC-Q100 Grade 2 qualification, while 'ZHW' specifies the 32-contact WQFN package. The 'EX' suffix denotes tape and reel packaging. It is specifically engineered for automotive applications requiring high reliability and specific change control.

Replacement Considerations

Direct replacements must match the 32-WQFN package and support PCIe Gen 6 jitter specifications. Verify that any substitute supports the same 25MHz input frequency and 100MHz output frequency. Ensure the alternative device offers comparable SMBus configurability and AEC-Q100 Grade 2 qualification if used in automotive contexts.