TDA7405_04 Datasheet, PDF (6/57 Pages) STMicroelectronics – EQUALIZER CARRADIO SIGNAL PROCESSOR

TDA7405
Table 5. 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
MULTIPLEXER OUTPUT²⁾
R_OUT Output Impedance
800 1000
Ω
R_L Output Load Capacitance
2
kΩ
C_L
10
nF
V_DC DC Voltage Level
4.3
4.5
4.7
V
2. If confgured as Multiplexer-Output
LOUDNESS CONTROL
A_STEP Step Resolution
0.5
1
1.5
dB
A_MAX Max. Attenuation
-21
-19
-17
dB
f_Peak Peak Frequency
f_P1
180 200 220
Hz
f_P2
360 400 440
Hz
f_P3
540 600 660
Hz
f_P4
720 800 880
Hz
VOLUME CONTROL
G_MAX Max. Gain
30
32
34
dB
A_MAX Max. Attenuation
-83 -79.5 -75
dB
A_STEP Step Resolution
0
0.5
1
dB
E_A Attenuation Set Error
G = -20 to +20dB
G = -80 to -20dB
-0.75 0 +0.75 dB
-4
0
3
dB
E_T Tracking Error
2
dB
V_DC DC Steps
Adjacent Attenuation Steps
From 0dB to G_MIN
0.1
3
mV
0.5
5
mV
SOFT MUTE
A_MUTE Mute Attenuation
80
100
dB
T_D Delay Time
T1
T2
0.48
1
ms
0.96
2
ms
T3
70
123 170
ms
T4
200
324
600
ms
V_{TH low Low Threshold for SM-Pin}³⁾
1
V
V_{TH high} High Threshold for SM - Pin
2.5
V
R_PU Internal pull-up resistor
32
45
58
kΩ
V_PU Internal pull-up Voltage
3.3
V
3. The SM-Pin is active low (Mute = 0)
BASS CONTROL
C_RANGE Control Range
±14 +15.5 ±16
dB
A_STEP Step Resolution
0.1
0.5
1.0
dB
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