TDA7719 ST Microelectronics (意法半導體) 微處理
產品概述
3 BAND汽車音頻處理器 3 band car audio processor
TheTDA7719is 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**
. Offset detectionOffset voltage detection circuit for on-board power amplifier failure diagnosis . Mute functionsDirect muteDigitally controlled SoftMute with 4 programmable mute-times . Rear seat selectorFull source selector for rear seat output . Level meterProvide rectified level voltage of main source signal (before loudness) . Mixing selector . Speaker4 independent soft step speaker controls0dB to -79dB with 1dB stepsDirect mute . Treble2nd order frequency responseCenter frequency programmable in 4 steps-15 to 15dB range with 1dB resolution . Input multiplexerMultiple input configuration for different application . Volume+15 dB to -15 dB with 1 dB step resolutionSoft-step control with programmable blend times . Loudness2nd order frequency responseProgrammable center frequency15 dB with 1 dB stepsSelectable high frequency boostSelectable flat-mode . 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 . Subwoofer2nd order low pass filter with programmable cut off frequency2 independent soft step level control, . 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
