Product description
The TDA1074A is a monolithic integrated circuit designed for volume and tone control in stereo amplifiers. It includes two electronic tandem potentiometers and high-performance operational amplifiers with low power consumption.
Features:
- High impedance inputs at both ends of each potentiometer
- Ganged potentiometers track within 0.5 dB
- Electronic suppression of supply ripple
- Internally generated reference level available externally for symmetrical control voltage around 0 V
- Push-pull outputs for wide voltage swing and low power consumption
- Current-limited outputs for short-circuit protection
- Operates with supply voltages from 7.5 V to 23 V (typ. 20 V)
Specifications:
- Supply voltage: typ. 20 V
- Supply current: typ. 22 mA
- Max input signal voltage (rms): 6 V
- Max output signal voltage (rms): 6 V
- Total harmonic distortion (THD): typ. 0.05 %
- Output noise voltage (rms): typ. 50 µV
- Control range: typ. 110 dB
- Channel separation (L/R): typ. 80 dB
- Ripple rejection at 100 Hz: typ. 46 dB
- Ganged potentiometer tracking: typ. 0.5 dB
- Operating voltage range: 7.5 V to 23 V
- Operating temperature range: −30 °C to +80 °C