TDA7468D Datasheet, PDF (5/22 Pages) STMicroelectronics – TWO BANDS DIGITALLY CONTROLLED AUDIO PROCESSOR WITH BASS ALC SURROUND

TDA7468D
ELECTRICAL CHARACTERISTICS (continua)
(refer to the test circuit T_amb = 25°C, V_S = 9V, f = 1KHz all controls flat (G = 0dB), unless otherwise
specified)
Symbol
Parameter
BASS CONTROL
Gb Control Range
B_STEP Step Resolution
R_B Internal Feedback Resistance
BASS ALC CONTROL
R_attack1 Attack Time Resistor 1
R_attack2 Attack Time Resistor 2
R_attack3 Attack Time Resistor 3
R_attack4 Attack Time Resistor 4
Thresh1 Threshold 1
Thresh2 Threshold 2
Thresh3 Threshold 3
Thresh4 Threshold 4
TREBLE CONTROL
Gt Control Range
T_STEP Step Resolution
R_t Internal Resistance
AUDIO OUTPUTS
V_OCL Clipping Level
R_L Output Load Resistance
VO_UT DC Voltage Level
GENERAL
E_NO Output Noise
S/N Signal to Noise Ratio
S_C Channel Separation Left/Right
d
Distortion
S_C Channel Separation left/right
Total Tracking Error
BUS INPUT
V_IL Input Low Voltage
V_IH Input High Voltage
I_IN Input Current
V_O Output Voltage (ACK)
Test Condition
Max. Boost/cut
Max. Boost/cut
THD = 0.3%
BW = 20Hz to 20KHz;
All gains 0dB;
output muted
flat
All gains 0dB; V_O = 1V_rms ;
A_V = 0; V_I = 0.1V_rms ;
A_V = 0; V_I = 1V_rms ;
V_IN = 0.4V
I_O = 1.6mA
Min. Typ. Max. Unit
±12.0 ±14.0 ±16.0 dB
1
2
3
dB
33
44
55
KΩ
12.5
KΩ
25
KΩ
50
KΩ
100
KΩ
700
mVrms
485
mVrms
320
mVrms
170
mVrms
+13.0 +14.0 +15.0 dB
1
2
3
dB
25
KΩ
2
2.5
2
4.5
Vrms
KΩ
V
5
µV
10
15
µV
100
dB
90
dB
0.1
%
0.01
%
90
dB
0
1
dB
1
V
2.5
V
-5
5
µA
0.4
0.8
V
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