TDA1074A Dual Tandem Electronic Potentiometer Circuit

The TDA1074A is a monolithic integrated circuit designed for use as volume and Tone control circuit in stereo Amplifiers This dual tandem potentiometer IC consists of two ganged pairs of electronic potentiometers with the eight inputs connected via impedance converters, and the four outputs driving individual Operational Amplifiers The setting of each electronic potentiometer pair is controlled by an individual d.c. control voltage. The potentiometers operate by current division between the ARMs of cross-coupled long-tailed pairs. The current division factor is determined by the level and polarity of the d.c. control voltage with respect to an externally available reference level of half the supply voltage. Since the electronic potentiometers are adjusted by a d.c. control voltage, each pair CAN be controlled by single linear potentiometers which CAN be located in any position dictated by the equipment styling. Since the input feedback impedances around the Operational Amplifier Gain Blocks are external, the TDA1074A CAN perform bass/treble and volume/loudness control. It also CAN be used as a low-level fader to control the sound distribution between the front and rear loudspeakers in car Radio installations.
By NXP Semiconductors
TDA1074A 's PackagesTDA1074A 's pdf datasheet



TDA1074A Pinout will be updated soon..., now you can download the pdf datasheet to check the pinouts !
TDA1074A circuits will be updated soon..., now you can download the pdf datasheet to check the circuits!

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