8T49N286-002NLGI

Overview

The 8T49N286-002NLGI is a Universal Frequency Translator (UFT) from the FemtoClock NG series by Renesas Electronics. It features a single PLL capable of generating up to eight differential output clocks with frequencies ranging from 8 kHz to 1 GHz. The device supports input clock levels including LVPECL, LVDS, LVHSTL, HCSL, and LVCMOS, accepting frequencies up to 875 MHz. It operates on a 2.375V to 3.465V supply within an industrial temperature range of -40°C to +85°C. Packaged in a 72-VFQFN exposed pad, it provides flexible frequency synthesis and jitter attenuation for high-speed networking applications.

Feature Summary

• Generates up to eight independent differential output clocks from a single fractional-feedback PLL
• Supports multiple input voltage standards including LVPECL, LVDS, LVHSTL, HCSL, and LVCMOS
• Enables hitless switching between input clocks with phase-slope limiting options
• Configurable via I2C interface or external EEPROM for boot-up initialization

Applications

• SONET/SDH and Ethernet network line cards
• Wireless base station baseband units
• Carrier Ethernet switches and OTN equipment
• Test and measurement instrumentation

Procurement Notes

Verify the specific suffix against official documentation to confirm configuration details. Ensure compatibility with required input/output voltage levels and package dimensions. Confirm RoHS compliance status and moisture sensitivity level prior to integration into manufacturing processes.

Selection Notes

Select this component when requiring up to eight differential outputs from a single PLL source. It is suitable for designs needing flexible frequency translation with jitter attenuation capabilities. Consider the 72-VFQFN package constraints and verify that the operating temperature range meets system requirements.

Part Context

This part belongs to the FemtoClock NG family of universal frequency translators. These devices are designed for high-performance timing applications requiring low phase noise and flexible frequency generation. The family includes variants with different output counts and PLL configurations tailored for networking and telecommunications infrastructure.

Replacement Considerations

Consult official substitution guides for compatible alternatives within the FemtoClock NG series. Verify pinout and electrical parameter equivalence before replacing existing components in established designs.