TDA7416_11 Datasheet, PDF (13/37 Pages) STMicroelectronics – Car radio signal processor

TDA7416
Description of the audio processor part
4
Description of the audio processor part
4.1
Audio processor features
● Input multiplexer
– 1 pseudo differential CDC stereo input, programmable as single-ended input
– 3 single-ended stereo inputs
– Input gain adjust 0 to 15 dB with 1 dB steps
– direct mute
– internal offset-cancellation (AutoZero)
● Mixing stage
– mixable mix input to Front speaker outputs
– Input controls +15 to -79 dB with 1 dB steps
– direct mute
– Loudness
– programmable center frequency and filter slope
– 19 dB with 1dB steps
– selectable flat-mode (constant attenuation)
● Volume
– +32 to -79.5 dB with 0.5 dB step resolution
– soft-step control with programmable blend times
– 100 dB range
● Equalizer
– seven bands
– 2^nd order frequency response
– center frequency programmable for lowest and highest filter
– programmable quality factor in four steps for each filter
– -15 to 15 dB range with 1dB resolution
● Spectrum analyzer
– seven bandpass filters
– 2^nd order frequency response
– programmable quality factor for different visual appearance
– analog output
– controlled by external serial clock
● High-pass
– 2^nd order butterworth high-pass with programmable cut-off frequency
– selectable flat-mode
● Speaker
– 4 independent soft-step speaker controls, +15 to -79 dB with 1 dB steps
– mute
– 4 independent programmable mix inputs with 50% mixing ratio
● Subwoofer
Doc ID 9837 Rev 2
13/37