Part # TDA7439 datasheet

Part Manufacturer: ST Microelectronics

ST Microelectronics

Part Description: Three-band digitally-controlled audio processor


Part Details:

TDA7439 Three-band digitally-controlled audio processor Features ! Input multiplexer ­ four stereo inputs ­ selectable input gain for optimal adaptation to different sources ! Single stereo output ! Treble, mid-range and bass control in 2-dB steps SDIP30 ! Volume control in 1-dB steps high-quality audio applications in car-radio and ! Two speaker attenuators: Hi-Fi systems. Selectable input gain is provided. All the functions are controlled by serial bus. ­ two independent speaker controls in 1-dB steps for balance facility The AC signal setting is obtained by resistor ­ independent mute function networks and switches combined with operational amplifiers. ! All functions are programmable via serial bus. The TDA7439 employs BIPOLAR/CMOS Description technology to provide low distortion, low noise and DC stepping. The TDA7439 is a volume, tone (bass, mid-range and treble) and balance (left/right) processor for Table 1. Device summary Order code Package Packaging TDA7439 SDIP30 Tube March 2008 Rev 11 1/23 www.st.com 23 Contents TDA7439 Contents 1 Block diagram and pin out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Application suggestions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.1 Tone control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.1.1 Bass, mid-range stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.1.2 Treble stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.2 Pin CREF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9


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TDA7439.pdf Datasheet