9ZXL1231AKILF

Overview

The Renesas 9ZXL1231AKILF is a second-generation DB1200ZL differential clock buffer featuring 12 low-power HCSL (LP-HCSL) outputs. It operates within a supply voltage range of 3.135 V to 3.465 V and supports input frequencies up to 150 MHz. The device utilizes a 64-VFQFPN package with dimensions of 9 mm x 9 mm x 0.9 mm. Key electrical characteristics include a typical power consumption of 481 mW and support for spread spectrum inputs to reduce electromagnetic interference.

Feature Summary

• 12 LP-HCSL differential outputs eliminate the need for 24 external termination resistors, saving approximately 41 mm² of board area.
• Hardware control via 12 OE# pins allows independent management of each output state.
• Supports selectable PLL bandwidth to minimize jitter peaking in cascaded PLL topologies.
• Compatible with spread spectrum inputs that track the spreading input clock for EMI reduction.

Applications

• Servers and high-performance computing systems
• NVMe storage controllers
• Networking accelerators
• Industrial control equipment

Procurement Notes

Verify moisture sensitivity level (MSL 3) and reflow soldering profiles prior to assembly. Confirm RoHS compliance status through official manufacturer documentation. Ensure proper handling procedures are followed due to surface mount packaging requirements.

Selection Notes

Select this component for applications requiring pin-compatible upgrades from the 9ZXL1231A series with improved phase jitter performance. Verify compatibility with Intel QPI/UPI legacy standards if operating at 100MHz or 133.33MHz PLL modes. Ensure system design accommodates the 9x9mm VFQFPN footprint.

Part Context

This part belongs to the 9ZXL1231 family of zero-delay clock buffers. It serves as an enhanced-performance differential buffer designed for critical timing distribution in high-speed digital interfaces. The device maintains fixed external feedback to ensure low drift for sensitive processor clock applications.

Replacement Considerations

The 9ZXL1231EKILFT is identified as a similar replacement option. Verify functional equivalence regarding output configuration and electrical specifications before substitution.