8V97051LNLGI8

Overview

The 8V97051LNLGI8 is a low-power wideband fractional RF synthesizer and PLL manufactured by Renesas Electronics. It features dual differential outputs with an open-drain configuration, supporting a continuous output frequency range from 34.375 MHz to 4400 MHz. The device utilizes a Fractional-N architecture with 16-bit integer and 12-bit fractional resolution (extendable to 16-bit). It operates on a single 3.3V supply and includes an integrated VCO with automatic band selection. Key electrical parameters include programmable output power levels ranging from -4 dBm to +5 dBm (up to +7 dBm in extended mode) and typical phase noise of -143 dBc/Hz at 1 MHz offset for a 1.1 GHz LO.

Feature Summary

• Dual differential open-drain outputs with independent programmable power levels (-4 dBm to +5 dBm)
• Wideband frequency range: 34.375 MHz to 4400 MHz with integrated VCO
• Fractional-N synthesizer with 16-bit integer and 12-bit fractional resolution
• 3- or 4-wire SPI interface compatible with 1.8V and 3.3V logic

Applications

• Local oscillator (LO) source for multi-carrier base station radio cards
• FDD and TDD wireless communication systems
• RF signal generation requiring ultra-low phase noise performance

Procurement Notes

Verify the specific suffix 'NLGI8' against official Renesas documentation to confirm package type and temperature grade. Confirm current production status as the base 8V97051 series may be marked Not Recommended for New Design (NRND). Ensure compatibility with required loop filter components and Timing Commander software tools for configuration.

Selection Notes

Select this component when a wide tuning range up to 4.4 GHz is required with low power consumption. Verify that the 3.3V supply voltage aligns with system requirements. Consider the VFQFN package dimensions (5mm x 5mm) for PCB layout constraints. Ensure the application supports the necessary external loop filter design for stability.

Part Context

The 8V97051L is part of Renesas' RF synthesizer family, succeeding earlier IDT designs. It is optimized for high-performance timing applications in telecommunications infrastructure. The device integrates an automatic VCO band selection feature (AutoCal) to simplify design and improve lock time compared to manual band selection methods.

Replacement Considerations

Check for direct pin-compatible replacements within the 8V9705x family, such as the 8V97053, which offers enhanced phase noise specifications. Verify if the NRND status of the base model necessitates a redesign or if existing inventory can be utilized.