TDA7404_08 Datasheet, PDF (10/35 Pages) STMicroelectronics – Car radio signal processor

Electrical specifications
TDA7404
Table 5.
Symbol
Electrical characteristics (continued)
(V_S =9 V; T_amb=25 °C; R_L=10 kΩ; all gains = 0 dB; f = 1 kHz; unless otherwise specified)
Parameter
Test conditions
Min. Typ. Max. Unit
Mixing control
M_LEVEL Mixing level
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
Loudness control
A_STEP Step resolution
A_MAX Max. attenuation
f_C Center frequency
Soft-mute
A_MUTE Mute attenuation
T_D Delay time
V_{TH low} Low threshold for SM pin⁽²⁾
V_{TH high} High threshold for SM pin
R_PU Internal pull-up resistor
V_PU Pull-up voltage
Main / mix-source
Main / mix-source
Main / mix-source
Main / mix-source
G = -20 to +20 dB
G = -80 to -20 dB
Adjacent steps
From 0 dB to G_MIN
T1
T2
T3
T4
0/00
dB
-8.5/- -3.5/- -2.5/-
10.6 9.6 8.6
dB
-5/-5 -6/-6 -7/-7 dB
-11/- -12/- -13/-
1.5 2.5 3.5
dB
28
30
32
dB
-83 -79 -75
dB
0.5
1
1.5
dB
-1
0
1
dB
-4
0
3
dB
2
dB
0.1
3
mV
0.5
5
mV
-0.5
1
1.5
dB
13
15
17
dB
360 400 440 Hz
720 800 880 Hz
2.3 2.4⁽¹⁾ 2.5
kHz
80 100
dB
0.48
1
ms
0.96
2
ms
20 30.7 50
ms
70 123 170 ms
1
V
2.50
V
70 100 130 kΩ
5
V
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