9ZXL1930BKLFT

Overview

The 9ZXL1930BKLFT is a second-generation, enhanced-performance differential buffer from Renesas Electronics, belonging to the DB1900Z derivative family. It serves as a pin-compatible upgrade to the 9ZXL1930B, offering significantly improved phase jitter performance. The device features one differential input and nineteen differential outputs utilizing LP-HCSL signaling. It operates within a frequency range of 1 MHz to 400 MHz and accepts spread spectrum input signals. Powered by a single 3.3 V supply, typical power consumption is 712 mW. The component is housed in a 72-lead VFQFPN package with dimensions of 10.0 mm x 10.0 mm x 1.0 mm.

Feature Summary

• Second-generation DB1900Z-derivative differential buffer with improved phase jitter over the 9ZXL1930B
• 19 differential LP-HCSL outputs driven by a single HCSL differential input
• Fixed external feedback loop maintains low drift for critical QPI/UPI applications
• Supports spread spectrum clocking input within a 1 MHz to 400 MHz operating range

Applications

• PCIe clock distribution networks
• QuickPath Interconnect (QPI) systems
• Universal Peripheral Interface (UPI) architectures

Procurement Notes

Verify the specific ordering suffix 'BKLFT' against the manufacturer's current datasheet to confirm package type, tape-and-reel quantity, and RoHS compliance status. Ensure that the required factory packaging quantity aligns with procurement requirements, as this series typically utilizes reel packaging. Confirm moisture sensitivity levels and recommended reflow soldering profiles prior to assembly.

Selection Notes

Select the 9ZXL1930BKLFT when upgrading from the 9ZXL1930B to achieve superior jitter performance without altering the PCB layout due to pin compatibility. This component is suitable for designs requiring fixed external feedback stability for QPI or UPI interfaces. Evaluate the 712 mW typical power consumption and 3.3 V supply requirement against system thermal constraints. Ensure the design supports the 10.0 mm x 10.0 mm VFQFPN-72 footprint.

Part Context

This part belongs to the 9ZXL1930 series of clock buffers manufactured by Renesas Electronics. It is categorized under Clock & Timer ICs and specifically functions as a clock buffer. The series includes variants such as the 9ZXL1930D and 9ZXL1930EKILF, which share similar differential buffering capabilities but may differ in packaging, revision, or specific electrical characteristics.

Replacement Considerations

The 9ZXL1930B is the direct predecessor offering pin-compatible replacement with lower jitter performance. The 9ZXL1930D is another variant within the same derivative family. Verify exact electrical parameters and package markings before substituting.