MAX2870 | Arduino support for the MAX2870 Wideband Frequency Synthesizer chip from Maxim

MAX2870 is a C++ library typically used in Internet of Things (IoT) applications. MAX2870 has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

This library supports the MAX2870 from Maxim on Arduinos. The chip is a wideband (23.475 MHz to 6 GHz) Phase-Locked Loop (PLL) and Voltage Controlled Oscillator (VCO), covering a very wide range frequency range under digital control. Just add an external PLL loop filter, Reference frequency source and a power supply for a very useful frequency generator for applications as a Local Oscillator or Sweep Generator. The chip generates the frequency using a programmable Fractional-N and Integer-N Phase-Locked Loop (PLL) and Voltage Controlled Oscillator (VCO) with an external loop filter and frequency reference. The chip is controlled by a SPI interface, which is controlled by a microcontroller such as the Arduino. The library provides an SPI control interface for the MAX2870, and also provides functions to calculate and set the frequency, which greatly simplifies the integration of this chip into a design. The calculations are done using the excellent Big Number Arduino Library by Nick Gammon, as the integter calculations require great than 32bit integers that are not available on the Arduino. The library also exposes all of the PLL variables, such as FRAC, Mod and INT, so they examined as needed. Requires the BitFieldManipulation library: Requires the BeyondByte library: A low phase noise stable oscillator is required for this module. Typically, an Ovenized Crystal Oscillator (OCXO) in the 10 MHz to 100 MHz range is used.