8V97051NLGI8

Overview

The 8V97051NLGI8 is a low power wideband fractional RF synthesizer and PLL manufactured by Renesas Electronics. It operates with a single 3.3V supply and supports an input reference frequency range of 5MHz to 310MHz. The device generates output frequencies from 34.375MHz to 4400MHz using an integrated VCO. Key electrical parameters include typical phase noise of -143dBc/Hz at 1MHz offset for a 1.1GHz LO, programmable output power levels ranging from -4dBm to +5dBm (up to +7dBm with extended registers), and typical power consumption of 380mW when the secondary RF output is disabled. It features dual differential open-drain outputs.

Feature Summary

• Dual differential outputs with independent programmable power levels (-4dBm to +7dBm)
• Wideband frequency range: 34.375MHz to 4400MHz continuous
• Ultra-low phase noise performance (-143dBc/Hz at 1MHz offset, 1.1GHz LO)
• 3- or 4-wire SPI interface compatible with 1.8V and 3.3V logic

Applications

• Multi-carrier base station radio cards
• Local oscillator (LO) generation in FDD systems
• Local oscillator (LO) generation in TDD systems

Procurement Notes

Verify component status as the 8V97051 family is designated Not Recommended for New Design (NRND). Confirm availability through authorized distributors, as stock may be limited. Ensure compatibility with existing system designs before procurement, as replacement components require validation.

Selection Notes

Select this component for applications requiring wideband synthesis with low phase noise. Verify that the required output frequency falls within the 34.375MHz to 4400MHz range. Check if the 32-Lead VFQFN package fits the PCB layout constraints. Consider the NRND status for long-term production planning.

Part Context

The 8V97051L series belongs to Renesas' RF synthesizer family, optimized for wireless infrastructure. It shares architectural similarities with the 8V97053 but offers specific power and noise characteristics tailored for base station LO applications. The device integrates an automatic VCO band selection feature (AutoCal) to simplify loop filter design.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the NRND status, alternative solutions should be evaluated based on pin compatibility and electrical specifications.