TDA7419_09 Datasheet, PDF (13/40 Pages) STMicroelectronics – 3 band car audio processor

TDA7419
Electrical specifications
Table 6.
Symbol
Electrical characteristics (continued)
V_S = 8.5V; T_amb = 25°C; R_L = 10kΩ; all gains = 0 dB; f = 1 kHz; unless otherwise specified
Parameter
Test condition
Min. Typ. Max. Unit
A_STEP Step resolution
A_MUTE Mute attenuation
E_E Attenuation set error
V_DC DC steps
Subwoofer lowpass
Adjacent attenuation steps
0.5
1
1.5
dB
80
90
dB
2
dB
-5
1
5
mV
f_LP1
f_LP Lowpass corner frequency
f_LP2
f_LP3
HPF effect
72
80
88
Hz
108 120 132 Hz
144 160 176 Hz
G_MAX
G_MIN
A_STEP
Max gain
Min gain
Step resolution
Spectrum analyzer control
21
22
23
dB
3
4
5
dB
1.5
2
2.5
dB
V_SAOut Output voltage range
f_C1 Center frequency band 1
f_C2 Center frequency band 2
f_C3 Center frequency band 3
f_C4 Center frequency band 4
f_C5 Center frequency band 5
f_C6 Center frequency band 6
f_C7 Center frequency band 7
Q1
Q Quality factor
Q2
f_SAClk
t_Sadel
t_repeat
t_intres
Clock frequency
Analog output delay time
Spectrum analyzer repeat time
Internal reset time
General
0
3.3
V
5.5
62
69
Hz
141 157 173 Hz
356 392 436 Hz
0.9
1
1.1 kHz
2.26 2.51 2.76 kHz
5.70 6.34 6.98 kHz
14.4 16 17.6 kHz
1.62 1.8 1.98
3.15 3.5 3.85
3
100 kHz
2
μs
50
ms
4.5
ms
e_NO Output noise
S/N Signal to noise ratio
D Distortion
S_C Channel separation left/right
BW = 20 Hz to 20 kHz
all gain = 0dB
12
20
μV
BW = 20 Hz to 20 kHz output
muted
6
15
μV
all gain = 0 dB flat; V_o = 2 V_RMS
100
dB
V_IN = 1 V_RMS; all stages 0 dB
0.01 0.1
%
80
90
dB
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