TDA7407_07 Datasheet, PDF (12/46 Pages) STMicroelectronics – Advanced car signal processor

Audio processor part
TDA7407
Table 5.
Audio processor electrical characteristics (continued)
(V_S = 9V; T_amb = 25°C; R_L = 10KΩ; all gains = 0dB; f = 1KHz; unless otherwise
specified)
Symbol
Parameter
Test condition
Min. Typ. Max. Unit
V_DC DC steps
Adjacent attenuation steps
From 0dB to GMIN
0.1 3 mV
0.5 5 mV
Soft mute/AFS
A_MUTE Mute attenuation
T1
T2
T_D Delay time
T3
T4
V_{TH low} Low threshold for SM-/AFS- Pin⁽¹⁾
V_{TH high} High threshold for SM-/AFS-Pin
R_PD Internal pull-up resistor
Bass control
C_RANGE Control range
A_STEP Step resolution
f_C1
f_C2
f_C Center frequency
f_C3
f_C4
80 100
dB
0.48
ms
0.96
ms
40.4
ms
324
ms
1V
2.5
V
45
KΩ
±13 ±15 ±17 dB
0.5 1 1.5 dB
54 60 66 Hz
63 70 77 Hz
72 80 88 Hz
100
90 (150) 110 Hz
(2)
Q_BASS Quality factor
DC_GAIN Bass-DC-gain
Q₁
Q₂
Q₃
Q₄
DC = off
DC = on
0.9 1 1.1
1.1 1.25 1.4
1.3 1.5 1.7
1.8 2 2.2
-1
0
1 dB
3.5 4.4 5.5 dB
MID control
C_RANGE Control range
A_STEP Step resolution
f_C1
f_C2
f_C Center frequency
f_C3
f_C4
±13 ±15 ±17 dB
0.5 1 1.5 dB
450 500 550 Hz
0.9 1 1.1 kHz
1.35 1.5 1.65 kHz
1.8 2 2.2 kHz
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