TDA7719

3 BAND汽车音频处理器 3 band car audio processor

The 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 BCMOSprocess and liner signal processing low distortion and low noise are obtained.

**Key Features**

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Offset detectionOffset voltage detection circuit for on-board power amplifier failure diagnosis

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Mute functionsDirect muteDigitally controlled SoftMute with 4 programmable mute-times

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Rear seat selectorFull source selector for rear seat output

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Level meterProvide rectified level voltage of main source signal before loudness

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Mixing selector

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Speaker4 independent soft step speaker controls0dB to -79dB with 1dB stepsDirect mute

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Treble2nd order frequency responseCenter frequency programmable in 4 steps-15 to 15dB range with 1dB resolution

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Input multiplexerMultiple input configuration for different application

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Volume+15 dB to -15 dB with 1 dB step resolutionSoft-step control with programmable blend times

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Loudness2nd order frequency responseProgrammable center frequency15 dB with 1 dB stepsSelectable high frequency boostSelectable flat-mode

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Middle2nd order frequency responseCenter frequency programmable in 4 stepsQ programmable 0.5/0.75/1.0/1.25-15 to 15dB range with 1dB resolution

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Subwoofer2nd order low pass filter with programmable cut off frequency2 independent soft step level control,

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Bass2nd order frequency responseCenter frequency programmable in 4 stepsQ programmable 1.0/1.25/1.5/2.0DC gain programmable-15 to 15 dB range with 1 dB resolution