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TDA7419_09 Datasheet, PDF (14/40 Pages) STMicroelectronics – 3 band car audio processor | |||
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Description of the audio processor
4
Description of the audio processor
TDA7419
4.1
Audio processor features
â Input Multiplexer
â QD / SE: quasi-differential stereo inputs, with selectable single-ended mode
â SE1: stereo single-ended input
â SE2: stereo single-ended input
â SE3 / AC2IN: stereo single-ended input / HPF filter input
â In-Gain 0 to 15dB, 1dB steps
â internal offset-cancellation (AutoZero)
â separate second source-selector
â Mixing stage
â mixable to front speaker-outputs
â Loudness
â 2nd order frequency response
â programmable center frequency (400Hz/800Hz/2400Hz)
â 15 dB with 1 dB steps
â selectable low and high frequency boost
â selectable flat-mode (constant attenuation)
â Volume
â +15 dB to -79 dB with 1 dB step resolution
â soft-step control with programmable blend times
â Bass
â 2nd order frequency response
â center frequency programmable in 4 steps (60 Hz/80 Hz/100 Hz/200 Hz)
â Q programmable 1.0/1.25/1.5/2.0
â DC gain programmable
â -15 to 15 dB range with 1 dB resolution
â Middle
â 2nd order frequency response
â center frequency programmable in 4 steps (500Hz/1KHz/1.5KHz/2.5KHz)
â Q programmable 0.5/0.75/1.0/1.25
â DC gain programmable
â -15 to 15dB range with 1dB resolution
â Treble
â 2nd order frequency response
â center frequency programmable in 4 steps (10KHz/12.5KHz/15KHz/17.5KHz)
â -15 to 15dB range with 1dB resolution
â Spectrum analyzer
â seven bandpass filters
â 2nd order frequency response
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