STMicroelectronics Audio Special Purpose - TDA7440D TDA7440D

The TDA7440D is a digitally controlled audio processor designed for high-fidelity audio applications. It features a tone control system that allows for treble and bass adjustments in 2.0 dB steps, as well as volume control in 1.0 dB steps. The device supports an input multiplexer with four stereo inputs and selectable input gain, enabling optimal adaptation to various audio sources. This processor includes two independent speaker attenuators for balance control, each adjustable in 1.0 dB steps, and an independent mute function. All functions are programmable via a serial bus, facilitating integration into digital audio systems. The TDA7440D operates with a supply voltage range of 6V to 10.2V and is characterized by low distortion and low noise performance due to its bipolar/CMOS technology. With a signal-to-noise ratio of 106 dB and total harmonic distortion of 0.01% at 1 kHz, the TDA7440D is suitable for applications requiring high audio quality. Its compact SO-28 package makes it a practical choice for space-constrained designs.