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TDA7719 Datasheet(PDF) 1 Page - STMicroelectronics |
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TDA7719 Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 45 page  January 2008 Rev 2 1/45 1 TDA7719 3 band car audio processor Features ■ Input multiplexer – Multiple input configuration for different application ■ Loudness – 2nd order frequency response – Programmable center frequency – 15dB with 1dB steps – Selectable high frequency boost – Selectable flat-mode ■ Volume – +15dB to -15dB with 1dB step resolution – Soft-step control with programmable blend times ■ Bass – 2nd order frequency response – Center frequency programmable in 4 steps – Q programmable 1.0/1.25/1.5/2.0 – DC gain programmable – -15 to 15dB range with 1dB resolution ■ Middle – 2nd order frequency response – Center frequency programmable in 4 steps – Q programmable 0.5/0.75/1.0/1.25 – -15 to 15dB range with 1dB resolution ■ Treble – 2nd order frequency response – Center frequency programmable in 4 steps – -15 to 15dB range with 1dB resolution ■ Speaker – 4 independent soft step speaker controls – 0dB to -79dB with 1dB steps –Direct mute ■ Subwoofer – 2nd order low pass filter with programmable cut off frequency – 2 independent soft step level control, ■ Mute functions – Direct mute – Digitally controlled SoftMute with 4 programmable mute-times ■ Offset detection – Offset voltage detection circuit for on-board power amplifier failure diagnosis ■ Level meter – Provide rectified level voltage of main source signal (before loudness) ■ Rear seat selector – Full source selector for rear seat output ■ Mixing selector Description The TDA7719 is a high performance signal processor specifically designed for car radio applications. The device includes a high performance audioprocessor with fully integrated audio filters and new Soft Step architecture. The digital control allows programming in a wide range of filter characteristics. By the use of BCMOS- process and liner signal processing low distortion and low noise are obtained. Table 1. Device summary Order code Package Packing TDA7719 TSSOP28 Tube TDA7719TR TSSOP28 Tape and reel TSSOP28 www.st.com |
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