8T49N244A-000ASGI8

Overview

The Renesas 8T49N244A-000ASGI8 is a FemtoClock NG Universal Frequency Translator featuring two independent Phase-Locked Loops (PLL-A and PLL-B). It supports low-bandwidth jitter attenuation with manual pin-based switchover. The device accepts differential inputs such as LVPECL, LVDS, HCSL, or LVCMOS, and generates up to four outputs in LVDS format. Key electrical parameters include a maximum output frequency of 1.3 GHz, an input frequency range of 8 kHz to 710 MHz, and a typical RMS phase jitter of 465 fs. It operates on a single 2.5 V supply within a -40°C to +85°C temperature range.

Feature Summary

• Dual independent PLL architecture for flexible clock synthesis and translation
• Low-bandwidth jitter attenuation mode with manual pin-controlled switchover
• Supports multiple input formats including LVPECL, LVDS, HCSL, and LVCMOS
• Configurable LVDS outputs with programmable frequencies up to 1.3 GHz

Applications

• SONET/SDH network line cards
• Ethernet Synchronous Ethernet applications
• Wireless base station baseband units
• Carrier Ethernet switches

Procurement Notes

Verify the specific ordering suffix against the official IDT/Renesas FemtoClock UFT Ordering Guide to confirm the exact input/output frequency configuration and boot method. Confirm that the required configuration matches the factory-programmed settings for the -000 code, as custom configurations require direct contact with the manufacturer.

Selection Notes

Select this component when dual independent clock domains are required with low-bandwidth jitter filtering. Ensure the application utilizes manual pin-based switching rather than I2C control. Verify that the target output signaling levels match the LVDS specification provided in the datasheet.

Part Context

This part belongs to the 8T49N244I family of Universal Frequency Translators. It is functionally related to other devices in the series such as the 8T49N366I and 8T49N445I, which offer different numbers of PLLs and output banks but share similar FemtoClock NG technology and interface protocols.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Contact the manufacturer for alternative recommendations if this discontinued or legacy part is no longer suitable.