The TDA7718N 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.
**Key Features**
Offset detectionOffset voltage detection circuit for on-board power amplifier failure diagnosis
Speaker4 independent soft step speaker controls+15 dB to -79 dB with 1 dB stepsDirect mute
Treble2nd order frequency response (10 kHz / 12.5 kHz / 15 kHz / 17.5 kHz)Center frequency programmable in 4 steps (10 kHz / 12.5 kHz / 15 kHz / 17.5 kHz)-15 dB to 15 dB with 1 dB resolution
Volume+23 dB to -31 dB with 1 dB step resolutionSoft-step control with programmable blend times
Loudness2nd order frequency responseProgrammable center frequency (400 Hz / 800 Hz / 2400 Hz)15 dB with 1 dB stepsSelectable high frequency boostSelectable flat-mode (constant attenuation)
Middle2nd order frequency responseCenter frequency programmable in 4 steps (500 Hz / 1 kHz / 1.5 kHz / 2.5 kHz)Q programmable 0.75/1.0/1.25-15 dB to 15 dB range with 1 dB resolution
Subwoofer2nd order low pass filter with programmable cut off frequency (55 Hz / 85 Hz / 120 Hz / 160 Hz)2 independent soft step level control, +15 dB to 79 dB with 1 dB steps
Bass2nd order frequency responseCenter frequency programmable in 4 steps (60 Hz / 80 Hz / 100 Hz / 200 Hz)Q programmable 1.0/1.25/1.5/2.0DC gain programmable-15 dB to 15 dB range with 1 dB resolution
