PI6CB33802ZLIEX

Clock Buffers, Drivers Overview

The PI6CB33802ZLIEX is a very-low-power eight-output PCIe clock buffer manufactured by Diodes Incorporated. It accepts a differential HCSL input and fans out to eight low-power differential HCSL outputs with integrated on-chip termination, eliminating the need for external resistors. The device supports input frequencies of 100MHz, 50MHz, 125MHz, and 133.33MHz via SMBus configuration. It operates on a nominal 3.3V supply voltage (3.135V to 3.465V) and features a proprietary PLL design for very-low jitter performance compliant with PCIe Gen1 through Gen5 standards. The component is housed in a 48-lead 6mm × 6mm TQFN package.

Clock Buffers, Drivers Feature Summary

• Eight differential low-power HCSL outputs with default 85Ω on-chip termination
• Supports 100MHz, 50MHz, 125MHz, and 133.33MHz input frequencies via SMBus or strapping pins
• Very-low jitter output compliant with PCIe Gen1/Gen2/Gen3/Gen4/Gen5 specifications
• Individual output enable pins for power management and programmable slew rate/amplitude per output

Clock Buffers, Drivers Applications

• PCIe Gen1/Gen2/Gen3/Gen4/Gen5 clock distribution
• Ethernet applications requiring 50MHz, 125MHz, or 133.33MHz clocks
• High-speed digital systems requiring low-jitter clock buffering

Clock Buffers, Drivers Procurement Notes

Verify the ordering suffix 'ZLIEX' corresponds to the 48-contact TQFN package with top-right pin 1 orientation and tape/reel packaging. Confirm RoHS compliance and lead-free status as specified in the datasheet notes. Ensure the application circuit matches the 3.3V supply requirements and SMBus interface specifications.

Clock Buffers, Drivers Selection Notes

Select this component when an eight-channel clock buffer with integrated termination is required to reduce board space and component count. It is suitable for designs needing support for multiple standard frequencies (50MHz, 100MHz, 125MHz, 133.33MHz) configurable via SMBus. Consider the TQFN-48 package size and thermal characteristics for PCB layout planning.

Clock Buffers, Drivers Part Context

This part belongs to the PI6CB33 series of PCIe clock buffers from Diodes Incorporated. It is specifically designed for high-speed serial link applications where low jitter and flexible frequency selection are critical. The ZLIEX suffix indicates the specific package type and packaging method.

Clock Buffers, Drivers Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Check with Diodes Incorporated for automotive qualified versions if AEC-Q100 compliance is required.

Clock Buffers, Drivers FAQ

What is the default output impedance of the PI6CB33802ZLIEX?

The default on-chip termination impedance is 85Ω.

How is the input frequency selected?

Input frequency can be selected via strapping pins (SADR_TRI, BW_SEL_TRI) or configured using the SMBus interface.

Does the device support spread spectrum clocking?

Yes, the PI6CB33802 is spread spectrum tolerant.