Description

The TDA7418 includes a high performance audio procesor with fully integrated 3-Band filters to processs signals at audible frequencies. The digital control allows a full programming of the audioprocessor and filters characteristics..

Features

■ Input Multiplexer

   – PD/SE4: pseudo differential stereo input, programmable as single-ended input

   – SE1: stereo single-end input

   – SE2: stereo single-end input

   – SE3: stereo single-end input

   – input gain adjust from 0 to 15dB with 1dB steps

   – internal offset-cancellation (AutoZero)

■ Loudness

   – Second order frequency response

   – programmable center frequency(400Hz/800Hz/2400Hz)

   – 15dB with 1dB steps

   – selectable low & high frequency boost

   – selectable flat-mode (constant attenuation)

■ Volume

   – +15dB to -79dB with 1dB step resolution

   – soft-step control with programmable blend times

■ Bass

   – second order frequency response

   – center frequency programmable in 4 steps (60Hz/80Hz/100Hz/200Hz)

   – Q programmable 1.0/1.25/1.5/2.0

   – DC gain programmable

   – -15 to 15dB range with 1dB resolution

■ Middle

   – second order frequency response

   – center frequency programmable in 4 steps (500Hz/1KHz/1.5KHz/2.5KHz)

   – Q programmable 0.5/0.75/1.0/1.25

   – -15 to 15dB range with 1dB resolution

■ Treble

   – second order frequency response

   – center frequency programmable in 4 steps (10KHz/12.5KHz/15KHz/17.5KHz)

   – -15 to 15dB range with 1dB resolution

■ Speaker

   – 4 independent soft step speaker controls, +15dB to -79dB with 1dB steps direct mute

■ Subwoofer

   – single-ended mono output

   – independent soft step level control, +15dB to -79dB with 1dB steps

■ Mute Functions

   – direct mute

   – digitally controlled SoftMute with 3 programmable mute times(0.48ms/0.96ms/123ms)