TDA7462 Datasheet, PDF (5/25 Pages) STMicroelectronics – DUAL AUDIOPROCESSOR WITH COMPANDER AND SUBWOOFER OUTPUT

TDA7462
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
SOFT MUTE
AMUTE
Mute Attenuation
TD
Delay Time
VTHlow
Low Threshold for SM Pin¹
VTHhigh High Threshold for SM Pin
RPD
Internal Pull-up Resistor
SOFT STEP
TSW
Switch Time
BASS CONTROL
CRANGE Control Range
ASTEP
Step Resolution
fC
Center Frequency
QBASS
Quality Factor
DCGAIN Bass-Dc-Gain
TREBLE CONTROL
CRANGE Control Range
ASTEP
Step Resolution
fC
Center Frequency
SPEAKER ATTENUATORS
CRANGE Control Range
ASTEP
Step Resolution
AMUTE Output Mute Attenuation
EE
Attenuation Set Error
VDC
DC Steps
1) The SM pin is active low (Mute = 0)
Test Condition
Min.
80
T1
T2
T3
20
T4
70
2.5
70
fC1
fC2
fC3
fC4
Q1
Q2
Q3
Q4
DC = off
DC = on
T_SW1
T_SW2
TSW3
TSW4
TSW5
TSW6
T_SW7
T_SW8
±14
0.5
54
63
72
90
0.9
1.1
1.3
1.8
-1
4
±13
1
fC1
8
fC2
10
fC3
12
fC4
14
-53
0.5
80
-2
Adjacent Attenuation Steps
Typ.
100
0.48
0.96
30.7
123
100
0.16
0.32
0.64
1.28
2.56
5.12
10.2
20.4
±15
1
60
70
80
100
1
1.25
1.5
2
0
4.4
±14
2
10
12.5
15
17.5
50
1
90
0.1
Max.
1
2
50
170
1
130
±16
1.5
66
77
88
110
1.1
1.4
1.7
2.2
+1
6
±15
3
12
15
18
21
-47
2
2
5
Unit
dB
ms
ms
ms
ms
V
V
KΩ
ms
ms
ms
ms
ms
ms
ms
ms
dB
dB
Hz
Hz
Hz
Hz
dB
dB
dB
dB
KHz
KHz
KHz
KHz
dB
dB
dB
dB
mV
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