874003AGLF

Overview

The Renesas Electronics Corporation 874003AGLF is a PCI Express jitter attenuator IC belonging to the FemtoClock series. It features a single PLL circuit with a 1:3 input-to-output ratio, designed for space-constrained applications like add-in cards. The device accepts differential inputs in LVPECL, LVDS, LVHSTL, SSTL, or HCSL formats and provides differential LVDS outputs. It operates within a supply voltage range of 3.135V to 3.465V and supports maximum frequencies up to 160MHz. Packaged in a 20-TSSOP format, it functions within an ambient temperature range of 0°C to 70°C.

Feature Summary

• PCI Express Jitter Attenuation using FemtoClock PLL technology
• 1:3 Input-to-Output Ratio with Differential LVDS Outputs
• Supports Multiple Input Types: LVPECL, LVDS, LVHSTL, SSTL, HCSL
• 20-TSSOP Package for Space-Constrained Designs

Applications

• PCI Express Add-in Cards
• Desktop PC Systems
• Jitter Reduction for High-Speed Digital Interfaces

Procurement Notes

The 874003AGLF is officially listed as obsolete by the manufacturer. Verification of availability requires checking distributor inventory for remaining stock or approved alternative packages such as tape-and-reel variants. Procurement planning must account for end-of-life status and potential lead time extensions from secondary sources.

Selection Notes

Select this component for designs requiring low phase noise attenuation in PCIe systems where space is limited. Ensure input clock signals match supported logic families (LVPECL, LVDS, etc.). Verify that the 0°C to 70°C commercial temperature range meets system requirements, as industrial grade options may differ. Confirm compatibility with 3.3V nominal supply rails.

Part Context

This part is part of the 874003A family of high-performance differential-to-LVDS jitter attenuators. It utilizes IDT's third-generation FemtoClock PLL technology to minimize phase noise. The device is specifically engineered to track spread-spectrum clocking profiles while attenuating high-frequency jitter components from PLL synthesizers in PCIe environments.

Replacement Considerations

Public documentation lists the 874003DI-02 as a related product in the same family. However, specific cross-reference substitution data is not provided in the source material. Engineers should consult official replacement guides for pin-compatible alternatives.