The DS4420N+ is an I2C programmable-gain amplifier for audio applications in 14 pin TDFN package. This fully differential amplifier features a -35dB to +25dB gain range controlled by an I2C interface and it is optimized to drive loads as low as 50 ohm. 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 common bus. It is used in telephone headsets, microphone gain control and audio volume control.
Supply voltage range is 4.5V to 5.5V
Operating temperature range from -20°C to 70°C
Differential inputs and outputs
Low output noise
20KHz bandwidth for all gain settings
Maximum pass band flatness is +1dB at 20Hz to 20KHz
Output Noise of -88dB at A = +25dB, 300Hz to 3.4KHz
Maximum gain range is +25dB, maximum gain accuracy is +2.5dB
(EN)
