8T49N488A-000ASGI8

Overview

The 8T49N488A-000ASGI8 is a quad PLL FemtoClock NG Universal Frequency Translator manufactured by Renesas Electronics. It integrates low-phase noise frequency translation, jitter attenuation, and alarm monitoring functions for networking applications. The device features four fully independent PLLs with programmable outputs supporting LVPECL or LVDS signaling. It accepts input frequencies from 8 kHz to 710 MHz and generates output frequencies up to 1,300 MHz. Key electrical parameters include a maximum output frequency of 1.3 GHz, a typical RMS phase jitter of 465 fs in Low Bandwidth mode, and operation within a -40 °C to +85 °C temperature range using a 2.5 V supply.

Feature Summary

• Quad PLL architecture with four fully independent synthesizers
• FemtoClock NG technology achieving 465 fs typical RMS phase jitter
• Programmable LVPECL or LVDS output signaling types
• I²C serial interface for register programming

Applications

• Networking and communication equipment
• Synchronous Ethernet line cards
• SONET/SDH network infrastructure

Part Context

This component belongs to the 8T49N488I family of Universal Frequency Translators. It is part of Renesas' fourth-generation FemtoClock NG portfolio, which also includes dual-PLL (8T49N244I), tri-PLL (8T49N366I), and other quad PLL variants designed for high-performance clock generation.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Renesas resources for cross-reference information.