TDA7405_04 STMICROELECTRONICS [STMicroelectronics], TDA7405_04 Datasheet - Page 4
TDA7405_04
Manufacturer Part Number
TDA7405_04
Description
EQUALIZER CARRADIO SIGNAL PROCESSOR
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.TDA7405_04.pdf
(57 pages)
- Current page: 4 of 57
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TDA7405
4
Features:
Input Multiplexer
Beep
Mixing stage
Loudness
Volume
Bass
Treble
Equalizer
Speaker
Mute Functions
Pause Detector
Compander
4/57
AUDIOPROCESSOR PART
2 fully differential CD stereo inputs with programmable attenuation
1 single-ended stereo input
2 differential mono input
1 single-ended mono input
In-Gain 0..15dB, 1dB steps
internal Offset-cancellation (AutoZero)
separate second source-selector
internal Beep with 3 frequencies + diagnostic setting (19kHz tone)
Beep, Phone,Navigation and FM mixable to all speaker-outputs (see Figure 20)
programmabe Voice-Band Filter
programmable center frequency and frequency response
15 x 1dB steps
selectable flat-mode (constant attenuation)
0.5dB attenuator
100dB range
soft-step control with programmable times
2nd order frequency response
center frequency programmable in 8 steps
DC gain programmable
± 15 x 0.5dB steps
2nd order frequency response
center frequency programmable in 4 steps
± 15 x 1dB steps
two stereo equalizing-filters for separate front/rear adaption
1st filter center-frequency programmable in 16 steps (4 steps/octave, min 63Hz, max
840Hz)
2nd filter center-frequency programmable in 16 steps (4 steps/octave, min 300Hz,
max 4kHz)
quality factor programmable in 4 steps
± 15 x 1dB steps
selectable flat-mode
4 independent speaker controls in 1dB steps
control range 95dB
separate Mute
direct mute
digitally controlled SoftMute with 4 programmable mute-times
programmable threshold
dynamic range compression for use with CD
2:1 compression rate
programmable max. gain
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