844002AGI-01LF

Clock Generators, PLLs, Frequency Synthesizers Overview

The 844002AGI-01LF is a FemtoClock frequency synthesizer and jitter cleaner manufactured by Renesas Electronics. It features two differential LVDS outputs optimized for generating Ethernet reference clocks. The device accepts selectable crystal oscillator interfaces or single-ended LVCMOS/LVTTL inputs. It supports maximum output frequencies of 170 MHz with a maximum input frequency of 27.2 MHz. Operating voltage ranges from 2.375 V to 3.63 V, with a typical operating supply current of 98 mA. It functions within a temperature range of -40°C to +85°C and is housed in a 20-TSSOP package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates differential LVDS outputs optimized for Ethernet reference clock applications
• Supports selectable crystal oscillator interface or single-ended LVCMOS/LVTTL input signals
• Integrates PLL functionality with bypass capability for flexible clock management

Clock Generators, PLLs, Frequency Synthesizers Applications

• Ethernet reference clock generation
• Jitter cleaning for high-speed digital interfaces
• Frequency synthesis in telecommunications equipment

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

This component is officially listed as End-of-Life (EOL) by the manufacturer. Verify availability through authorized distributors or secondary market suppliers. Confirm RoHS compliance status and check for Product Change Notices regarding assembly site or marking updates before procurement.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this part for applications requiring low-jitter LVDS clock signals derived from crystal or CMOS/TTL references. Ensure input frequency constraints do not exceed 27.2 MHz and output requirements align with the 170 MHz limit. Verify power supply voltage compatibility within the 2.375 V to 3.63 V range and confirm TSSOP-20 package suitability for the PCB layout.

Clock Generators, PLLs, Frequency Synthesizers Part Context

Part of the FemtoClock family of clock synthesizers designed for precision timing applications. This specific model focuses on LVDS output generation for Ethernet standards. It serves as a specialized solution for reducing phase noise in high-frequency signal paths compared to standard oscillators.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

As the 844002AGI-01LF is discontinued, evaluate alternative FemtoClock models with LVDS outputs such as the 844002 series variants or newer generations from Renesas. Cross-reference pinouts and electrical specifications to ensure functional equivalence in existing designs.