8V97051ANLGI

Overview

The 8V97051ANLGI is a low power wideband fractional RF synthesizer/PLL optimized for use as the local oscillator in multi-carrier, multi-mode FDD and TDD base station radio cards. It features an integrated voltage-controlled oscillator (VCO) supporting output frequencies from 34.375MHz to 4400MHz with dual differential outputs. The device utilizes a 16-bit integer and 12-bit fractional architecture, offering programmable output power levels from -4dBm to +5dBm. It operates on a single 3.3V supply with typical power consumption of 380mW and is housed in a compact 32-lead, 5mm x 5mm VFQFN package.

Feature Summary

• Dual differential outputs with continuous frequency range of 34.375MHz to 4400MHz
• Ultra-low phase noise performance (-143dBc/Hz at 1MHz offset for 1.1GHz LO)
• Programmable output power level ranging from -4dBm to +5dBm
• 3- or 4-wire SPI interface compatible with 1.8V logic

Applications

• Local oscillator generation for multi-carrier base station radio cards
• Multi-mode FDD and TDD wireless communication systems
• RF synthesizer applications requiring wideband coverage and low phase noise

Procurement Notes

The 8V97051ANLGI carries an NRND (Not Recommended for New Designs) status. Availability is limited, and customers are advised to verify current stock levels with authorized distributors. Designers initiating new projects should consider the recommended replacement part, 8V97051L, which offers similar functionality with updated manufacturing support.

Selection Notes

Selection requires consideration of the external loop filter components necessary for PLL stability. The device supports both fractional-N and integer-N modes, allowing flexibility in frequency synthesis strategies. Output power can be adjusted via SPI commands, and the mute function provides control over signal transmission. Ensure compatibility with the Timing Commander software for configuration and programming.

Part Context

The 8V97051 belongs to Renesas' RF synthesizer family, designed specifically for high-performance wireless infrastructure. It is often compared with the 8V97053, which offers enhanced phase noise specifications. The component is supported by the Timing Commander software tool, facilitating easy configuration through a graphical user interface or register settings.

Replacement Considerations

The 8V97051L is the designated replacement for the 8V97051. It maintains the same low power wideband fractional RF synthesizer architecture and pinout compatibility, ensuring a drop-in solution for existing designs while providing continued production support.