ZL30271LDG1Q0BK

Overview

The ZL30271LDG1Q0BK is a clock generator featuring five output frequency synthesizers in a 64-lead 9 mm x 9 mm VQFN package. It supports any-to-any frequency conversion with outputs ranging from 0.5 Hz to 750 MHz. The device accepts crystal or CMOS inputs and provides up to 10 differential or 20 single-ended CMOS outputs. Key electrical parameters include core power consumption under 0.9W, supply voltages of 1.8V and 3.3V for the core, and 1.5V to 3.3V for output pairs. It achieves typical output jitter of 100 fsRMS at 156.25 MHz.

Feature Summary

• Five independent low-jitter synthesizers supporting any-to-any frequency conversion
• Up to 10 differential or 20 single-ended CMOS outputs with programmable formats (LVDS, LVPECL, Low-VCM)
• Internal Flash memory for automatic self-configuration at power-up
• Per-output phase adjustment with 1 ps resolution and glitchless start/stop

Applications

• JESD204B/C/D clock and SYSREF generation
• PCIe Gen 1 to 5 clock distribution
• Telecom equipment requiring PDH, SDH, and Synchronous Ethernet clocks
• Clocking for microprocessors, ASICs, and FPGAs

Procurement Notes

Verify the Q0BK suffix against official Microchip documentation to confirm specific qualification or packaging details. Ensure the host interface configuration matches the required SPI or I2C mode during system initialization.

Selection Notes

Select this model over the ZL30270 when higher output density is required, as it offers up to 10 differential outputs compared to the ZL30270's six. Confirm that the 64-lead VQFN package fits the PCB layout constraints and thermal requirements.

Part Context

This component belongs to the ZL30270-ZL30271 family of 5-synthesizer clock generators. It shares functional architecture with the ZL30270 but differs in pin count and output capacity due to the larger 64-lead package versus the 48-lead variant.

Replacement Considerations

The ZL30270 is a compatible alternative if fewer outputs are needed and a smaller footprint is preferred. Verify register compatibility and pin mapping differences between the 64-lead and 48-lead packages before substitution.