91309AGLF

Overview

The Renesas Electronics 91309AGLF is a high-performance, low-skew, low-jitter zero-delay buffer IC belonging to the 91309 series. It utilizes phase-locked loop (PLL) technology to align the REF input with CLKOUT signals in both phase and frequency. Designed for communication systems, it supports clock distribution at speeds ranging from 10 MHz to 133 MHz. The device features a 5V-tolerant REF input and offers controlled skew outputs with group-to-group skew less than 215 ps and within-group skew under 100 ps. It operates within a commercial temperature range of 0°C to +70°C and is housed in a 16-pin TSSOP package.

Feature Summary

• Zero-delay buffer architecture using PLL technology for precise phase alignment
• Frequency range support from 10 MHz to 133 MHz
• Low skew performance: Group-to-Group <215 ps; Within Group <100 ps
• 5V tolerant REF input compatible with various logic levels

Applications

• High-speed clock distribution in communication systems
• Systems requiring low jitter and controlled skew timing
• Spread Spectrum applications benefiting from high loop filter bandwidth

Procurement Notes

The 91309AGLF is classified as obsolete by the manufacturer. Verification of current availability requires checking authorized distributors for remaining stock or end-of-life notices. Designers should consider the recommended replacement part, 2308B, for new development activities due to the component's discontinued status.

Selection Notes

Select this component only for legacy designs where the specific 10-133 MHz frequency range and 16-pin TSSOP form factor are required. Ensure the application environment stays within the 0°C to +70°C commercial temperature limits. Verify that the 5V tolerance on the REF input matches the source signal voltage levels.

Part Context

This part is part of the IDT/Renesas 91309 family of zero-delay buffers. It shares functional similarities with other members like the 91309AGILFT but differs in packaging and temperature rating. The 'AGLF' suffix typically denotes the lead-free, tube-packaged variant intended for commercial temperature ranges, distinct from industrial grade options.

Replacement Considerations

The manufacturer recommends the 2308B as the direct alternative for new design and re-design activities. Engineers should evaluate the 2308B datasheet for pin compatibility and electrical parameter equivalence before transitioning.