85310AYI-11LF/W

Overview

The Renesas 85310AYI-11LF/W is a low skew, high-performance 1-to-10 differential-to-2.5V/3.3V ECL/LVPECL fanout buffer. It features ten differential outputs and two selectable differential input pairs (CLKX/NCLKX) capable of accepting LVPECL, LVDS, LVHSTL, SSTL, or HCSL levels. The device translates single-ended inputs to 3.3V LVPECL with resistor bias on the NCLK input. Key electrical parameters include a maximum output frequency of 700MHz, typical output skew of 30ps, part-to-part skew of 140ps, propagation delay of 2ns, and additive phase jitter RMS of less than 0.13ps. It operates within a VCC range of 2.375V to 3.8V for LVPECL mode.

Feature Summary

• Ten differential 2.5V/3.3V LVPECL/ECL output pairs
• Two selectable differential input pairs supporting LVPECL, LVDS, LVHSTL, SSTL, and HCSL
• Maximum output frequency of 700MHz
• Typical output skew of 30ps and part-to-part skew of 140ps

Applications

• Clock distribution systems requiring well-defined performance and repeatability
• High-speed digital interfaces utilizing LVPECL or ECL signaling
• Systems translating differential input signals to LVPECL levels

Procurement Notes

Verify the specific suffix 'W' against official Renesas documentation, as standard listings often use 'LF'. Confirm current lifecycle status, as similar variants in this family are marked obsolete. Ensure the package type matches the required PCB footprint and that RoHS compliance aligns with project specifications.

Selection Notes

Select this component when a 1:10 fanout ratio with low skew is required for LVPECL or ECL loads. Verify that the input signal levels (LVDS, LVHSTL, etc.) are compatible with the CLKX/NCLKX pins. Ensure the power supply voltage falls within the 2.375V to 3.8V range for proper LVPECL operation and check thermal requirements for the specific package.

Part Context

This part belongs to the ICS85310 family of clock buffers designed for high-frequency applications. It serves as a fanout buffer to drive multiple loads from a single differential source while maintaining signal integrity through low skew characteristics. The family includes variants with different output counts and input configurations.