8T49N244A-005ASGI8

Overview

The 8T49N244A-005ASGI8 is a FemtoClock NG Universal Frequency Translator manufactured by Renesas Electronics. It features two independent PLLs and operates within an ambient temperature range of -40°C to +85°C. The device supports input frequencies up to 710 MHz and generates output signals with a maximum frequency of 1.3 GHz. It utilizes a CABGA-80 package (10x10 mm) and accepts multiple input formats including LVPECL, LVDS, HCSL, LVCMOS, LVTTL, and LVHSTL. Output signaling is configurable as LVPECL or LVDS. Key electrical parameters include a typical RMS phase jitter of 333 fs in synthesizer mode and 465 fs in low-bandwidth mode, with a peak-to-peak jitter specification of 40 ps.

Feature Summary

• Dual independent PLL architecture for flexible clock synthesis and translation
• Supports wide input frequency range from 8 kHz to 710 MHz
• Generates output frequencies up to 1.3 GHz with LVPECL or LVDS signaling
• Low phase jitter performance: 333 fs typ (RMS) in Integer FB mode

Applications

• SONET/SDH network line cards
• Synchronous Ethernet (SyncE) applications
• Carrier Ethernet switches
• OTN equipment

Procurement Notes

This component is identified as End-of-Life (EOL). Distribution channels indicate it is no longer actively sold. Verification of remaining stock or final time buy options requires direct consultation with the manufacturer or authorized distributors. Ensure compliance with RoHS 3 standards if applicable to current inventory sources.

Selection Notes

Select this part when dual independent frequency translation is required for networking infrastructure. Verify that the specific factory pre-programmed configuration associated with the '-005' suffix matches the design requirements, as these devices are custom-configured at the factory. Confirm compatibility with existing I2C programming interfaces if register overwrites are needed post-power-up.

Part Context

The 8T49N244A belongs to the FemtoClock NG family of universal frequency translators. It is closely related to the 8T49N244I series, sharing similar architectural features but differing in specific factory configurations. This family is designed to replace older clock generators in high-performance networking and telecommunications systems requiring precise jitter attenuation.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the End-of-Life status, alternative solutions should be evaluated based on pin compatibility and functional equivalence with newer Renesas timing products or third-party equivalents.