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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)