Product overview
Description
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.
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All features
- Offset detection
Offset voltage detection circuit for on-board power amplifier failure diagnosis - Mute functions
Direct mute Digitally controlled SoftMute with 4 programmable mute-times (0.48 ms/0.96 ms/8 ms/16 ms) - Speaker
4 independent soft step speaker controls +15 dB to -79 dB with 1 dB steps Direct mute - Treble
2nd 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 - Input multiplexer
QD1: quasi-differential stereo inputs SE1: stereo single-ended input SE2: stereo single-ended input SE3: stereo single-ended input FD1 / SE4+SE5: 1 full-differential input or 2 stereo single-ended inputs - Volume
+23 dB to -31 dB with 1 dB step resolution Soft-step control with programmable blend times - Loudness
2nd order frequency response Programmable center frequency (400 Hz / 800 Hz / 2400 Hz) 15 dB with 1 dB steps Selectable high frequency boost Selectable flat-mode (constant attenuation) - Middle
2nd order frequency response Center 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 - Subwoofer
2nd 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 - Bass
2nd order frequency response Center frequency programmable in 4 steps (60 Hz / 80 Hz / 100 Hz / 200 Hz) Q programmable 1.0/1.25/1.5/2.0 DC gain programmable -15 dB to 15 dB range with 1 dB resolution
- Offset detection
Circuit Diagram
EDA Symbols, Footprints and 3D Models
STMicroelectronics - TDA7718N
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