8T49N445-999ASGI

Overview

The 8T49N445-999ASGI is a quad Universal Frequency Translator (UFT) from the FemtoClock NG family, manufactured by Renesas Electronics. It integrates four independent PLLs for frequency translation and jitter attenuation. The device supports input frequencies from 8 kHz to 710 MHz and generates output frequencies ranging from 0.98 MHz to 1300 MHz. It accepts various differential input types including LVPECL, LVDS, LVHSTL, HCSL, and LVCMOS. Key electrical parameters include a core supply voltage of 2.5 V and an operating temperature range of -40 °C to 85 °C. The component utilizes a 10 mm x 10 mm CABGA package with 80 leads.

Feature Summary

• Quad PLL architecture with independent frequency synthesis capabilities
• Smooth reference switching between redundant input references
• Fractional-N PLL technology for low phase noise performance
• Supports multiple input/output signaling standards (LVPECL, LVDS, etc.)

Applications

• Networking and communications equipment timing
• Synchronous Ethernet line cards
• SONET/SDH network infrastructure
• Test and measurement instruments

Procurement Notes

Verify the specific suffix '999' against official Renesas documentation to confirm factory pre-programmed configuration settings. Confirm package type compatibility as datasheets may list variations such as ASG or NLG series. Check current product status as some UFT models have reached obsolescence.

Selection Notes

Select this component when four independent clock outputs are required from a single device. Ensure input frequency requirements fall within the 8 kHz to 710 MHz range. Verify that the 10mm x 10mm CABGA footprint fits the PCB layout constraints. Compare RMS jitter specifications against application requirements for high-speed serial links.

Part Context

This part belongs to the 8T49N445 family of Universal Frequency Translators. Related family members include the dual PLL 8T49N244I, tri-PLL 8T49N366I, and quad PLL 8T49N488I. These devices share common FemtoClock NG technology features but differ in the number of integrated PLLs and output configurations.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Renesas or authorized distributors for current equivalent recommendations if this specific order code is discontinued.