9ZXL1930BKLF

Overview

The 9ZXL1930BKLF is a second-generation, enhanced-performance differential buffer derived from the DB1900Z architecture. Manufactured by Renesas Electronics, this component serves as a pin-compatible upgrade to the 9ZXL1930B, offering significantly improved phase jitter performance. It features one differential input and nineteen differential outputs utilizing LP-HCSL signaling. The device operates within a frequency range of 1 MHz to 400 MHz and accepts spread spectrum input signals. Designed for critical applications such as QPI/UPI, it employs fixed external feedback to maintain low drift. The typical power consumption is 712 mW at a supply voltage of 3.3 V.

Feature Summary

• Second-generation DB1900Z-derivative differential buffer with 19 LP-HCSL outputs
• Pin-compatible upgrade to 9ZXL1930B with improved phase jitter performance
• Fixed external feedback mechanism for low drift in critical QPI/UPI applications
• Supports spread spectrum input signals for EMI reduction

Applications

• Quad Peripheral Interface (QPI) systems
• Universal Peripheral Interface (UPI) architectures
• High-speed memory interface clock distribution

Procurement Notes

Verify the specific suffix 'BKLF' against official Renesas documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with existing PCB footprints when replacing the 9ZXL1930B. Confirm moisture sensitivity levels and reflow soldering profiles prior to assembly. Cross-reference the part number with current datasheets to validate availability and manufacturing status.

Selection Notes

Select the 9ZXL1930BKLF when upgrading from the 9ZXL1930B to achieve superior jitter performance without altering board layout. This component is suitable for designs requiring 19 differential outputs with LP-HCSL signaling. Consider the 712 mW typical power consumption and 3.3 V supply requirement during thermal design. Verify that the application benefits from fixed external feedback stability for QPI/UPI timing integrity.

Part Context

This component belongs to the 9ZXL1930 series of clock buffers. It represents an evolution in Renesas's differential buffer portfolio, focusing on enhanced timing precision for high-speed data interfaces. The series is designed to meet the stringent jitter requirements of modern memory and peripheral interfaces.

Replacement Considerations

The 9ZXL1930B is the direct predecessor and pin-compatible alternative. When substituting, verify that the improved jitter characteristics of the BKLF variant do not require adjustments to loop filter components or PCB trace lengths.