8T49N488AASGI8

Overview

The 8T49N488AASGI8 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 independent PLLs capable of generating output frequencies from 0.98 MHz to 1300 MHz. It supports input frequencies ranging from 8 kHz to 710 MHz with LVPECL, LVDS, LVHSTL, or HCSL levels. Key electrical parameters include a typical RMS phase jitter of 465 fs in Low Bandwidth mode and 333 fs in Synthesizer mode. It operates on a full 2.5V ± 5% supply within an ambient temperature range of -40°C to 85°C.

Feature Summary

• Quad PLL architecture with four fully independent synthesizers
• FemtoClock NG technology for ultra-low phase noise performance
• Supports Frequency Synthesizer, High-Bandwidth, and Low-Bandwidth translator modes
• I²C serial interface for register programming and configuration

Applications

• Networking equipment clock generation
• Communication system timing
• Jitter attenuation for high-speed data links

Part Context

This component belongs to the 8T49N488I family of Universal Frequency Translators. Other members in this product line include dual-PLL (8T49N244I), tri-PLL (8T49N366I), and quad PLL variants. The device utilizes a 10mm x 10mm CABGA lead-free package compliant with RoHS 6 standards.