Thinking of building a tunable state variable filter with a maximum f0 of about 130 KHZ, I started to consider what to use to replace the resistors that control f0, Q and gain.
Amongst the options there is the AD633, analog multiplier and, absolutely new to me, the VCA SSM2164 SSM2164 | Low Cost Quad Voltage Controlled Amplifier | Variable Gain Amplifiers | Amplifiers and Comparators | Analog Devices
Is that VCA suitable? Honestly, I am not sure of what to look for in its specs.
Just in case, I decided already to avoid digital pots or DAC multipliers keeping the above (or similar) as my options.
Help is appreciated.
Amongst the options there is the AD633, analog multiplier and, absolutely new to me, the VCA SSM2164 SSM2164 | Low Cost Quad Voltage Controlled Amplifier | Variable Gain Amplifiers | Amplifiers and Comparators | Analog Devices
Is that VCA suitable? Honestly, I am not sure of what to look for in its specs.
Just in case, I decided already to avoid digital pots or DAC multipliers keeping the above (or similar) as my options.
Help is appreciated.