MDB1900ZBQZY01

Overview

The MDB1900ZBQZY01 is a zero-delay buffer designed for PCI Express and SATA CPU applications. It features one circuit with differential HCSL input and output signaling. The device operates within a frequency range up to 133.33MHz and supports a supply voltage of 2.375V to 3.465V. It includes an integrated PLL with bypass capability. The component is housed in a 72-QFN (10x10) package with an exposed pad, suitable for surface mount mounting. It functions within an operating temperature range of 0°C to 70°C.

Feature Summary

• Zero-delay buffer architecture for PCIe and SATA CPU timing
• Differential HCSL input and output signaling
• Integrated PLL with bypass functionality
• Operates at frequencies up to 133.33MHz

Applications

• PCI Express clock distribution
• SATA CPU clock buffering

Procurement Notes

Verify the manufacturer designation as Micrel Inc. against current corporate records, noting that Microchip Technology acquired Micrel. Confirm the specific ordering suffix QZY01 corresponds to the 72-VFQFN package and commercial temperature grade via official datasheets or distributor documentation before procurement.

Selection Notes

Select this component when a zero-delay buffer with HCSL I/O is required for PCIe or SATA interfaces. Ensure the design accommodates the 2.375V to 3.465V supply range and the 72-pin VFQFN footprint. Verify that the 0°C to 70°C operating temperature range meets the environmental requirements of the target application.

Part Context

This part belongs to the Application Specific Clock/Timing category. It serves as a clock buffer solution specifically optimized for high-speed serial interface standards like PCI Express and SATA, providing signal integrity and timing alignment through its zero-delay feedback mechanism.

Replacement Considerations

Consult official replacement guides from Microchip Technology for pin-compatible or functionally equivalent upgrades. Verify electrical parameters such as supply voltage and output signaling levels match the existing design constraints.