TDA7462 Datasheet, PDF (4/25 Pages) STMicroelectronics – DUAL AUDIOPROCESSOR WITH COMPANDER AND SUBWOOFER OUTPUT

TDA7462
ELECTRICAL CHARACTERISTICS (VS = 9V; Tamb = 25°C; RL = 10KΩ; all gains = 0dB; f = 1KHz;
unless otherwise specified).
Symbol
Parameter
INPUT SELECTOR
Rin
Input Resistance
VCL
Clipping Level
SIN
Input Separation
GIN MIN Min. Input Gain
GIN MAX Max. Input Gain
GSTEP
Step Resolution
VDC
DC Steps
V_offset
Remaining offset with AutoZero
DIFFERENTIAL CD STEREO INPUT
Rin
Input Resistance
G_CD
Gain
CMRR Common Mode Rejection Ratio
eN
Output Noise @ Speaker Output
DIFFERENTIAL MD INPUT
Rin
Input Resistance
CMRR Common Mode Rejection Ratio
eN
Output Noise @ Speaker Output
DIFFERENTIAL PHONE INPUT
Rin
Input Resistance
CMRR Common Mode Rejection Ratio
BEEP CONTROL
VRMS
Beep Level
fBMIN
Lower Beep Frequency
fBMAX
Higher Beep Frequency
MIXING CONTROL
MLEVEL Mixing Level
VOLUME CONTROL
GMAX
Max Gain
AMAX
Max Attenuation
ASTEP
Step Resolution
EA
Attenuation Set Error
ET
Tracking Error
VDC
DC Steps
LOUDNESS CONTROL
ASTEP
Step Resolution
AMAX
Max. Attenuation
fCMIN
Lower Center Frequency
fCMAX
Higher Center Frequency
Test Condition
all inputs except Phone
Adjacent Gain Step
GMIN to GMAX
Differential
only at true differential input
VCM = 1VRMS @ 1KHz
VCM = 1VRMS @ 10KHz
20Hz to 20KHz flat; all stages 0dB
Differential
VCM = 1VRMS @ 1KHz
VCM = 1VRMS @ 10KHz
20Hz to 20KHz flat; all stages 0dB
Differential
VCM = 1VRMS @ 1KHz
VCM = 1VRMS @ 10KHz
Main/Mix-Source
G = -20 to 20dB
G = -80 to -20dB
Adjacent Attenuation Steps
From 0dB to GMIN
Min.
70
2.2
80
-1
13
0.5
-5
-10
70
-1
-5
-11
40
40
40
40
40
70
35
35
250
740
1.48
30
-83
0
-0.75
-4
0.5
13
360
720
Typ.
100
2.6
100
0
15
1
1
6
0.5
100
0
-6
-12
70
60
9
55
70
60
9
100
70
60
350
780
1.56
0/∞
-3.5/-9.6
-6/-6
-12/-2.5
32
-79.5
0.5
0
0
0.1
0.5
1
15
400
800
Max.
130
1
17
1.5
5
10
130
1
-7
-13
70
130
500
820
1.64
34
-75
1
0.75
3
2
3
5
1.5
17
440
880
Unit
KΩ
VRMS
dB
dB
dB
dB
mV
mV
mV
KΩ
dB
dB
dB
dB
dB
µV
KΩ
dB
dB
µV
KΩ
dB
dB
mV
Hz
KHz
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
mV
mV
dB
dB
Hz
Hz
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