The DS4420 is a fully differential, programmable gain amplifier for audio applications. It features a -35dB to +25dB gain range controlled by an I²C interface and it is optimized to drive loads as low as 50Ω. The gain is adjustable in 3dB increments across the entire range. Three address inputs, used to select the I²C slave address, enable up to eight devices on a single bus. The product operates from a single 5V supply over a -20°C to +70°C temperature range. It is offered in a 3mm x 3mm TDFN package. Applications * Audio Volume Control * Microphone Gain Control * Telephone Headsets * Differential Inputs and Outputs * -35dB to +25dB Adjustable Gain * Low Output Noise * Low Distortion Driving Into a 50Ω Load * 3dB Gain Steps Programmed Through I²C Interface * 5V Single Supply * 20kHz Bandwidth for All Gain Settings * Small 3mm x 3mm x 0.8mm TDFN Package * Up to Eight DS4420s can be Placed on the Same I²C Bus https://elecena.pl/product/22302648/i-c-programmable-gain-amplifier-for-audio-applications 2022-12-25 https://elecena.pl/product/22302648/i-c-programmable-gain-amplifier-for-audio-applications 2025-01-18