PI6C5913004ZHIEX

Clock Buffers, Drivers Overview

The PI6C5913004ZHIEX is a high-performance 1-to-4 LVPECL fanout buffer manufactured by Diodes Incorporated. It supports clock frequencies up to 3 GHz with a maximum propagation delay of 500 ps and output-to-output skew under 20 ps. The device features low additive jitter, typically less than 0.02 ps (max). It accepts differential inputs including LVPECL, LVDS, CML, and LVCMOS levels via pin-selectable REF_IN0 or REF_IN1 pins. Powered by a single supply of 3.3V ±10% or 2.5V ±5%, it operates within an ambient temperature range of -40°C to +85°C and is housed in a 16-pin TQFN package.

Clock Buffers, Drivers Feature Summary

• Supports clock frequencies up to 3 GHz with four pairs of differential LVPECL outputs.
• Low additive jitter specification of less than 0.02 ps (max) for high signal integrity.
• Pin-selectable differential inputs accept LVPECL, LVDS, CML, and LVCMOS signal levels.
• Output-to-output skew is maintained below 20 ps across the operating temperature range.

Clock Buffers, Drivers Applications

• Clock distribution for low-noise oscillators
• High-speed data acquisition systems
• Telecommunications infrastructure

Clock Buffers, Drivers Procurement Notes

Verify the component against the official datasheet DS44019 Rev 1-2 to confirm electrical parameters and pin configurations. Ensure that the ordering suffix ZHIEX corresponds to the 16-contact W-QFN3030-16 package with tape/reel packaging. Confirm RoHS compliance and green material definitions match project requirements before finalizing procurement.

Clock Buffers, Drivers Selection Notes

Select this component when a 1:4 fanout buffer is required for signals up to 3 GHz. It is suitable for applications needing low skew and minimal additive jitter. Verify input compatibility with LVPECL, LVDS, CML, or LVCMOS sources. Ensure the system power supply aligns with the specified 3.3V or 2.5V ranges and that thermal management accounts for the junction-to-ambient resistance of 57.7 °C/W.

Clock Buffers, Drivers Part Context

This part belongs to the PI6C591 series of fanout buffers from Diodes Incorporated. It is designed as a low-skew solution for distributing reference clocks in high-speed digital systems. The ZHIEX suffix indicates the specific industrial temperature grade, lead-free/green packaging, and reel format.

Clock Buffers, Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Diodes Incorporated directly for alternative components with similar specifications if this part is unavailable.

Clock Buffers, Drivers FAQ

How is the input source selected on the PI6C5913004ZHIEX?

Input selection is controlled by the REF_SEL pin. A logic low selects REF_IN0, while a logic high selects REF_IN1.

What is the function of the VREF_AC pin?

The VREF_AC pin provides an output reference voltage biased to VDD-1.4V, which is used to recover DC bias when AC coupling inputs such as LVDS or CML.

Can unused inputs be left floating?

Unused differential input pins (REF_IN+/REF_IN-) can be left floating, though connecting them to GND via a 1kΩ resistor is suggested for added reliability.