8T49N366A-999ASGI

Overview

The 8T49N366A-999ASGI is a FemtoClock NG Universal Frequency Translator manufactured by Renesas Electronics. It integrates three fully independent Phase-Locked Loops (PLLs) for low-phase noise frequency translation, synthesis, and jitter attenuation. The device supports an input frequency range of 8 kHz to 710 MHz and generates programmable output frequencies from 0.98 MHz up to 1,300 MHz. Outputs are configurable as LVPECL or LVDS differential signals. It operates on a single 2.5 V ±5% supply within an ambient temperature range of -40 °C to 85 °C. The component is housed in a lead-free, RoHS-compliant 10 mm x 10 mm CABGA package with 80 leads.

Feature Summary

• Three fully independent PLLs supporting Frequency Synthesizer, High-Bandwidth, and Low-Bandwidth modes
• Programmable outputs ranging from 0.98 MHz to 1,300 MHz in LVPECL or LVDS formats
• Low RMS phase jitter: 465 fs typical in FracN mode; 333 fs typical in Integer FB mode
• I²C serial interface for register programming and configuration

Applications

• Networking equipment requiring precise clock distribution
• Communications systems utilizing frequency translation and jitter attenuation
• Baseband units and line cards in carrier infrastructure

Procurement Notes

Verify the specific suffix 'ASGI' against official Renesas documentation to confirm pinout, packaging dimensions, and environmental compliance status. Confirm current production status, as this series may have discontinuation notices. Ensure I²C address and register settings match the design requirements before procurement.

Selection Notes

Select this component when three independent clock domains are required from a single package. Compare RMS jitter specifications (465 fs vs 333 fs) against application sensitivity. Verify that the 2.5 V supply voltage aligns with system power rails. Ensure the 10x10 mm CABGA footprint fits the PCB layout constraints.

Part Context

This part belongs to the FemtoClock NG family, which includes dual PLL devices like the 8T49N244I and quad PLL devices such as the 8T49N445I and 8T49N488I. These components share common features like low-phase noise performance and flexible input/output configurations but differ in the number of integrated PLLs and output channels.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided data. Evaluate other members of the 8T49N366I family or related Universal Frequency Translators if pin-to-pin compatibility is required.