8T49N1012-100NLGI8

Overview

The 8T49N1012-100NLGI8 is a FemtoClock NG Universal Frequency Translator manufactured by Renesas Electronics Corporation. It integrates a fractional-feedback PLL for frequency translation and jitter attenuation, featuring four integer output dividers to generate up to four independent output frequencies ranging from 8kHz to 1.0GHz. The device supports LVPECL, LVDS, HCSL, or LVCMOS output levels and accepts multiple input clock types including LVPECL, LVDS, and HCSL. It operates within a supply voltage range of 2.375V to 3.465V and an ambient temperature range of -40°C to 85°C, housed in a 32-VFQFN exposed pad package.

Feature Summary

• Integrates a fractional-feedback PLL with four integer output dividers for generating independent output frequencies
• Supports flexible output configurations selectable among LVPECL, LVDS, HCSL, and LVCMOS signal standards
• Accepts multiple differential and single-ended input clock references for versatile system integration
• Includes alarm and monitoring functions suitable for networking and communications applications

Applications

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

Procurement Notes

Verify the specific ordering suffix against official Renesas documentation to confirm factory pre-programmed configuration settings. Confirm package type and RoHS compliance status through current datasheets. Check for product change notifications regarding assembly sites or material changes. Ensure compatibility with existing I2C programming interfaces and EEPROM boot requirements for the target design.

Selection Notes

Select this component when requiring a universal frequency translator with low phase jitter performance for high-speed digital systems. Evaluate the need for four independent output frequencies derived from a single reference source. Consider the operating temperature range and supply voltage requirements relative to the system environment. Verify that the available output drive strengths meet the load requirements of the connected circuitry.

Part Context

This part belongs to the FemtoClock NG family of programmable clock generators and synthesizers. These devices are designed to provide precise timing solutions with low RMS phase jitter for demanding data communication applications. The family offers various configurations to support different input/output combinations and frequency ranges, enabling designers to simplify timing architectures.

Replacement Considerations

Consult official Renesas substitution guides for verified alternative part numbers. Cross-reference pinouts, electrical characteristics, and software compatibility before implementation.