TDA7718B

TDA7718B 3 band car audio processor *$3*36 TSSOP28 Features  Input multiplexer – QD1: quasi-differential stereo inputs – SE1: stereo single-ended input – SE2: stereo single-ended input – SE3: stereo single-ended input – FD full-differential or quasi-differential input  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  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  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 Datasheet - production data  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  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 d...