TDA7462 Datasheet, PDF (6/25 Pages) STMicroelectronics – DUAL AUDIOPROCESSOR WITH COMPANDER AND SUBWOOFER OUTPUT

TDA7462
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
FADER OUTPUTS
VCLIP
Clipping Level
RL
Output Load Resistance
CL
Output Load Capacitance
ROUT
Output Impedance
VDC
DC Voltage Level
PAUSE DETECTOR
V_TH
Zero Crossing Threshold
I_DELAY
Pull-Up Current
V_THP
Pause Threshold
VOICE BANDPASS
f_HP
Highpass corner frequency
f_LP
Lowpass corner frequency
SUBWOOFER ATTENUATORS
C_RANGE
A_STEP
A_MUTE
Control Range
Step Resolution ²
Output Mute Attenuation
EE
Attenuation Set Error
V_DC
DC Steps
DIFFERENTIAL OUTPUTS
RL
Load resistance at each output
R_DL
Load resistance differential
CL
Capacitive load at each output
C_LMAX
C_DLMAX
Capacitive load at each output
Capacitive load differential
V_Offset
DC Offset at pins
R_OUT
Output Impedance
V_DC
DC Voltage Level
eNO
Output Noise
COMPANDER
G_MAX
Max. Compander Gain
Test Condition
d = 0.3%
Min.
2.2
2
4.3
Window 1
Window 2
Window 3
Window 4
15
f_HP1
81
f_HP2
162
f_HP3
117
fHP4
234
fLP1
2.7
f_LP2
5.4
-53
0.5
80
Adjacent Attenuation Steps
1VRMS; AC coupled; THD = 1%
1
2VRMS; AC coupled; THD = 1%
2
1VRMS; AC coupled; THD = 1% 2
2V_RMS; AC coupled; THD = 1%
4
CLMIN at each Output to
Ground
C_LMAX at each Output to Ground
CLMAX between Output
terminals
Output muted
-10
4.3
Output muted
V_i < -40dB
tATT
tRel
V_REF
CF
Attack time
Release time
Compander Reference Input-
Level (equals 0dB)
Compression Factor
tAtt1
t_Att2
t_Att3
t_Att4
tRel1
t_Rel2
t_Rel3
t_Rel4
1kHz sine-wave
Output Signal/Input Signal
2) Steps are increasing if the attenuation is higher than 24dB.
Typ.
2.6
30
4.5
20
40
80
160
25
3.0
90
180
130
260
3
6
-50
1
90
1
30
4.5
6
19
23
6
12
24
49
195
390
780
1.56
0.5
0.5
Max. Unit
VRMS
KΩ
10
nF
100
Ω
4.7
V
mV
mV
mV
mV
35
µA
V
99
Hz
198
Hz
143
Hz
286
Hz
3.3 kHz
6.6 kHz
-47
dB
1.5
dB
dB
2
dB
5
mV
kΩ
kΩ
kΩ
kΩ
470
pF
10
nF
5
nF
10
100
Ω
4.7
V
15
µV
dB
dB
ms
ms
ms
ms
ms
ms
ms
s
V_RMS
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