91309AGILF

Overview

The Renesas Electronics 91309AGILF is a high-performance, low-skew, low-jitter zero-delay buffer designed for clock distribution in communication systems. Operating within a frequency range of 10 to 133 MHz at 3.3V, it utilizes phase-locked loop (PLL) technology to align the REF input with CLKOUT signals in both phase and frequency. The device features less than 125 ps cycle-to-cycle jitter, skew-controlled outputs with group-to-group skew under 215 ps and intra-group skew under 100 ps, and a high loop filter bandwidth suitable for spread spectrum applications. It is available in a 16-pin TSSOP package.

Feature Summary

• Zero-delay buffer architecture using PLL technology for phase and frequency alignment
• Low jitter performance with less than 125 ps cycle-to-cycle specification
• Controlled output skew: Group-to-Group <215 ps; Within Group <100 ps
• High loop filter bandwidth optimized for spread spectrum applications

Applications

• Clock distribution in high-speed communication systems
• Systems requiring precise timing alignment between reference and output clocks
• Applications utilizing spread spectrum clocking techniques

Procurement Notes

The 91309AGILF is classified as obsolete by the manufacturer. Verification of current availability requires checking authorized distributors for remaining stock or surplus inventory. Designers should consult the recommended replacement part, IDT2308B, for new development activities. Ensure compliance with RoHS directives as indicated in official documentation before procurement.

Selection Notes

Select this component for designs requiring a zero-delay buffer with specific skew constraints and operation up to 133 MHz. Verify that the 3.3V supply voltage and 5V tolerant REF input are compatible with the system logic levels. Consider the 16-pin TSSOP package dimensions for PCB layout. Due to its obsolete status, evaluate the IDT2308B as the primary alternative for future-proofing designs.

Part Context

This component belongs to the IDT91309 series of high-performance communication buffers. It is part of Renesas Electronics' portfolio of clock and timer ICs, specifically targeting timing solutions for data communications. The device is manufactured under the ICS brand lineage, now integrated into Renesas.

Replacement Considerations

The IDT2308B is explicitly recommended by the manufacturer as the replacement for the 91309AGILF in new design and re-design activities. Engineers should review the 2308B datasheet for pinout compatibility and parameter differences.