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TDA7412 Datasheet, PDF (5/56 Pages) STMicroelectronics – CARRADIO SIGNAL PROCESSOR
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TDA7412
ELECTRICAL CHARACTERISTICS
VS = 9V; Tamb = 25°C; RL = 10kΩ; all gains = 0dB; f = 1kHz; unless otherwise specified
Symbol
Parameter
Test Condition
Min. Typ.
INPUT SELECTOR
Rin Input Resistance
all single ended Inputs
70
100
VCL Clipping Level
1.8
2.2
SIN Input Separation
80
100
GIN MIN Min. Input Gain
-1
0
GIN MAX Max. Input Gain
13
15
GSTEP Step Resolution
0.5
1
VDC DC Steps
Adjacent Gain Steps
GMIN to GMAX
-5
1
-10
6
Voffset Remaining offset with AutoZero
0.5
DIFFERENTIAL STEREO INPUTS
Rin Input Resistance
(see Figure 1)
Differential
70
100
GCD Gain
only at true differential input
-1
0
-5
-6
-11
-12
CMRR Common Mode Rejection Ratio VCM = 1VRMS @ 1kHz
46
70
VCM = 1VRMS @ 10kHz
46
60
eNO Output-Noise @ Speaker-Outputs 20Hz - 20kHz, flat; all stages 0dB
9
DIFFERENTIAL MONO INPUTS
Rin Input Impedance
Differential
40
56
CMRR Common Mode Rejection Ratio VCM = 1VRMS @ 1kHz
40
70
VCM = 1VRMS @ 10kHz
40
60
BEEP CONTROL
VRMS Beep Level
Mix-Gain = 6dB
250 350
fBeep Beep Frequency
fBeep1
570 600
fBeep2
740 780
fBeep1
1.48 1.56
fBeep1
2.28 2.4
MIXING CONTROL
MLEVEL Mixing Ratio
Main / Mix-Source
-6/-6
Max.
130
+1
17
1.5
5
10
130
1
7
-13
15
72
500
630
820
1.64
2.52
Unit
kΩ
VRMS
dB
dB
dB
dB
mV
mV
mV
kΩ
dB
dB
dB
dB
dB
µV
kΩ
dB
dB
mV
Hz
Hz
kHz
kHz
dB
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