TDA7718N

TDA7718N 3 band car audio processor Features ■ 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 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) Volume – +23 dB to -31 dB with 1 dB step resolution – Soft-step control with programmable blend times TSSOP28 ■ ■ Speaker – 4 independent soft step speaker controls – +15 dB to -79 dB with 1 dB steps – Direct mute 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 Mute functions – Direct mute – Digitally controlled SoftMute with 4 programmable mute-times (0.48 ms/0.96 ms/8 ms/16 ms) Offset detection – Offset voltage detection circuit for on-board power amplifier failure diagnosis ■ ■ ■ 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 www.DataSheet4U.com – DC gain programmable – -15 dB to 15 dB range with 1 dB resolution ■ ■ ■ 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...