MAX2871ETJ+T
Overview
The MAX2871ETJ+T is an ultra-wideband phase-locked loop (PLL) with integrated voltage-controlled oscillators (VCOs) capable of operating in both integer-N and fractional-N modes. It covers a frequency range from 23.5MHz to 6000MHz using a series of internal dividers, making it a highly versatile frequency synthesizer for high-performance wireless applications. The device features exceptionally low phase noise and a high-performance phase-frequency detector to maintain signal integrity across its wide tuning range.
Why Choose This Part
The MAX2871ETJ+T offers a unique frequency range from 23.5MHz to 6GHz without the need for external VCOs, significantly reducing PCB area and BOM complexity. Its normalized inband phase noise floor of -230dBc/Hz and flexible dual differential outputs make it suitable for demanding RF architectures. Additionally, the on-chip temperature sensor and automatic VCO selection ensure stable lock performance over the entire -40C to +85C operating range.
Applications
Key Specifications
Getting Started
Designers can evaluate performance using the MAX2871EVKIT evaluation board, which includes a USB interface and software for register programming. Communication is handled via a 3-wire SPI-compatible interface operating at 3V to 3.6V. For optimal phase noise performance, use a high-quality, low-jitter reference clock and follow the datasheet layout guidelines for the thermal pad and RF output matching.
