8T49N1012-102NLGI8

Overview

The 8T49N1012-102NLGI8 is a programmable clock generator from the FemtoClock NG series by Renesas Electronics. It features one fractional-feedback PLL for frequency synthesis, supported by two integer and eight fractional dividers. The device operates within a supply voltage range of 2.375V to 3.465V and supports input formats including HCSL, LVDS, and LVPECL. Outputs are provided in LVPECL format. It is housed in a 32-VFQFN package with an exposed pad, designed for surface mount installation.

Feature Summary

• Integrates a fractional-feedback PLL for precise frequency synthesis capabilities
• Supports multiple differential input standards including HCSL, LVDS, and LVPECL
• Delivers low-jitter output signals via LVPECL interface
• Configurable through internal EEPROM for flexible system integration

Applications

• High-speed data communication systems requiring precise clocking
• Telecommunications infrastructure equipment
• Enterprise storage arrays and server platforms
• Networking switches and routers

Procurement Notes

Verify the specific suffix '102' against official Renesas documentation to ensure correct frequency configuration and pinout compatibility. Confirm RoHS compliance status and check for any recent Product Change Notices (PCNs) regarding assembly sites or material updates. Ensure the ordering quantity aligns with standard packaging specifications provided by authorized distributors.

Selection Notes

Select this component when low phase noise and jitter attenuation are critical for signal integrity in high-frequency applications. Consider the available input/output voltage levels and the need for programmability via I2C interface. Evaluate thermal performance requirements given the VFQFN package type and operating temperature range specifications.

Part Context

This part belongs to the FemtoClock NG family, designed for advanced timing solutions. It complements other Renesas clock generators like the 8T49N004A series, offering enhanced programmability and lower jitter performance compared to legacy devices. It serves as a key component in modern digital systems requiring stable clock distribution.

Replacement Considerations

Direct substitutes may include variants within the same 8T49N1012 family with different output configurations. Verify electrical compatibility and pin-to-pin equivalence before replacement. Consult Renesas cross-reference guides for approved alternative part numbers.