BUY LM2917M https://www.utsource.net/itm/p/1331252.html
Frequency to Voltage Converter
Description: The LM2917M is a low power, wide supply voltage range, low-noise, voltage-controlled oscillator (VCO). Features: Wide supply voltage range: 2.7 V to 5.5 V Low power consumption: 1.3 mA Low-noise: -90 dBc/Hz High linearity: 0.5% Fast settling time: 10 μs Low-distortion: -90 dBc High-stability: 0.1% Applications: Automotive Industrial Consumer Medical (For reference only)