TDA7719 STMicroelectronics

TDA7719 Automotive 3 band car audio processor Datasheet - production data Speaker 4 independent soft step speaker controls 0 dB to -79 dB with 1 dB steps Direct mute * 3*36 Subwoofer nd TSSOP28 2 order low pass filter with programmable cut off frequency 2 independent soft step level control Features Mute functions Direct mute AEC-Q100 qualified Digitally controlled SoftMute with 4 Input multiplexer programmable mute-times Multiple input configuration for different Offset detection application Offset voltage detection circuit for on-board Loudness power amplifier failure diagnosis nd 2 order frequency response Level meter Programmable center frequency Provide rectified level voltage of main 15 dB with 1 dB steps source signal (before loudness) Selectable high frequency boost Rear seat selector Selectable flat-mode Full source selector for rear seat output Volume Mixing selector +15 dB to -15 dB with 1 dB step resolution Soft-step control with programmable blend Description times Bass The TDA7719 is a high performance signal nd 2 order frequency response processor specifically designed for car radio applications. The device includes a high Center frequency programmable in 4 steps performance audioprocessor with fully integrated Q programmable 1.0/1.25/1.5/2.0 audio filters and new Soft Step architecture. The DC gain programmable digital control allows programming in a wide range -15 to 15 dB range with 1 dB resolution of filter characteristics. By the use of Middle BCMOS-process and liner signal processing low nd 2 order frequency response distortion and low noise are obtained Center frequency programmable in 4 steps Q programmable 0.5/0.75/1.0/1.25 Table 1. Device summary -15 to 15 dB range with 1 dB resolution Order code Package Packing Treble TDA7719 TSSOP28 Tube nd 2 order frequency response TDA7719TR TSSOP28 Tape and reel Center frequency programmable in 4 steps -15 to 15 dB range with 1 dB resolution December 2017 DocID13698 Rev 6 1/47 This is information on a product in full production. www.st.comContents TDA7719 Contents 1 Block circuit diagram 6 2 Pin description . 7 2.1 Pin connection 7 2.2 Pin description 7 3 Electrical specifications 9 3.1 Thermal data . 9 3.2 Absolute maximum ratings . 9 3.3 Electrical characteristics . 9 4 Description 13 4.1 Input configuration 13 4.1.1 Front and rear selector . 13 4.1.2 Direct path . 15 4.2 Mixing 16 4.3 Loudness . 17 4.3.1 Loudness attenuation 17 4.3.2 Peak frequency . 17 4.3.3 High frequency boost . 18 4.3.4 Flat mode 18 4.4 SoftMute 18 4.5 Softstep volume 19 4.6 Bass . 19 4.6.1 Bass attenuation 19 4.6.2 Bass center frequency 19 4.6.3 Bass quality factors 20 4.6.4 DC mode 20 4.7 Middle 21 4.7.1 Middle attenuation . 21 4.7.2 Middle center frequency 21 4.7.3 Middle quality factors . 22 4.8 Treble 22 2/47 DocID13698 Rev 6