TDA7719
数据手册.pdfST Microelectronics(意法半导体)
电子元器件分类
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**
- .
- 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