TDA7419_09 Datasheet, PDF (11/40 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
Volume control
G_MAX
A_MAX
A_STEP
Max gain
Max attenuation
Step resolution
E_A Attenuation set error
E_T Tracking error
V_DC DC steps
Soft-mute
A_MUTE Mute attenuation
T_D Delay time
V_{TH Low} Low threshold for SM pin
V_{TH High} High threshold for SM pin
R_PU Internal pull-up resistor
V_PU Internal pull-up voltage
Bass control
Fc Center frequency
Q_BASS Quality factor
C_RANGE Control range
A_STEP Step resolution
DC_GAIN Bass-DC-gain
G = -20 to +20 dB
G = -79 to -20 dB
Adjacent attenuation steps
From 0dB to G_MIN
T1
T2
T3
13
15
17
dB
-83
-79
-75
dB
0.5
1
1.5
dB
-0.75 0 +0.75 dB
-4
0
3
dB
2
dB
-3
0.1
3
mV
-5
0.5
5
mV
80
100
dB
0.48
1
ms
0.96
2
ms
70 123 170 ms
1
V
2.5
V
32
45
58
kΩ
3.3
V
f_C1
54
60
66
Hz
f_C2
72
80
88
Hz
f_C3
90 100 110 Hz
f_C4
180 200 220 Hz
Q₁
0.9
1
1.1
Q₂
1.1 1.25 1.4
Q₃
1.3 1.5 1.7
Q₄
1.8
2
2.2
±14 ±15 ±16 dB
0.5
1
1.5
dB
DC = off
-1
0
+1
dB
DC = on (shelving filter, use for
cut only)
-4.4
dB
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