TDA7404D Datasheet, PDF (6/26 Pages) STMicroelectronics – CARRADIO-SIGNAL-PROCESSOR

TDA7404D
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test Conditions
Min.
SOFT STEP
T_SW Switch time
T_SW1
T_SW2
T_SW3
T_SW4
1) Center frequency 2.4KHz makes 1KHz bottom frequency at low & high frequency boost condition.
2) The SM-Pin is active low (Mute = 0)
BASS CONTROL
C_RANGE Control Range
+14
A_STEP Step Resolution
0.5
f_C
Center Frequency
f_C1
54
f_C2
72
f_C3
90
f_C4
180
Q_BASS Quality Factor
Q₁
0.9
Q₂
1.1
Q₃
1.3
Q₄
1.8
DC_GAIN Bass-DC-Gain
DC = off
-1
DC = on
4
TREBLE CONTROL
C_RANGE Control Range
+14
A_STEP Step Resolution
0.5
f_C
Center Frequency
f_C1
8
f_C2
10
f_C3
12
f_C4
14
SPEAKER ATTENUATORS
C_RANGE Control Range
-53
A_STEP Step Resolution
only for attenuation up to 24dB
0.5
A_MUTE Output Mute Attenuation
80
Typ.
0.68
1.26
2.52
5.04
+15
1
60
80
100
200
1
1.25
1.5
2
0
4.4
+15
1
10
12.5
15
17.5
50
1
90
Max.
+16
1.5
66
88
110
220
1.1
1.4
1.7
2.2
1
6
+16
1.5
12
15
18
21
-47
1.5
Unit
ms
ms
ms
ms
dB
dB
Hz
Hz
Hz
Hz
dB
dB
dB
dB
kHz
kHz
kHz
kHz
dB
dB
dB
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