TDA7381_08 Datasheet, PDF (5/13 Pages) STMicroelectronics – 4 x 25W quad bridge car radio amplifier

TDA7381
Electrical specifications
Table 4.
Electrical characteristcs (continued)
(V_S = 14.4 V; f = 1 kHz; R_g = 600 Ω; R_L = 4 Ω; T_amb = 25 °C; Refer to the test and application
circuit (Figure 3), unless otherwise specified).
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
e_No
SVR
Output noise
Supply voltage rejection
"A" Weighted
Bw = 20 Hz to 20 kHz
f = 100 Hz
50
μV
65 150 μV
50
65
dB
f_cl
f_ch
R_i
C_T
I_SB
V_{SB out}
V_{SB IN}
A_M
V_{M out}
V_{M in}
I_{m (L)}
I_CDOFF
I_CDON
Low cut-off frequency
High cut-off frequency
Input impedance
Cross talk
St-by current consumption
St-by out threshold voltage
St-by in threshold voltage
Mute attenuation
Mute out threshold voltage
Mute in threshold voltage
Muting pin current
Clipping detector "OFF"
output average current
Clipping Detector "ON"
Output Average Current
f = 1KHz
St-by = LOW
(Amp: ON)
(Amp: OFF)
V_O = 1 Vrms
(Amp: play)
(Amp: mute)
V_MUTE = 1.5 V; (source current)
THD = 1 % ⁽²⁾
THD = 10 % ⁽²⁾
20
Hz
75
KHz
70 100
KΩ
50
70
dB
100 μA
3.5
V
1.5
V
80
90
dB
3.5
V
1.5
V
5
10
16
μA
100
μA
100 240 350 μA
1. Saturated square wave output.
2. Diagnostics output pulled-up to 5 V with 10 kΩ series resistor.
Figure 3.
Standard test and application circuit
ST-BY
MUTE
IN1
R1
10K
R2
47K
C1
0.1μF
IN2
C2 0.1μF
IN3
C3 0.1μF
IN4
C4 0.1μF
C8
0.1μF
C7
2200μF
Vcc1-2 Vcc3-4
4
C9
1μF
22
C10
1μF
11
6
20
9
8
7
5
2
3
12
17
18
19
15
S-GND
14
13
16
C5
0.1μF
21
24
23
10
25
SVR
C6
47μF
1
TAB
DIAGNOSTICS
OUT1
OUT2
OUT3
OUT4
D94AU179B
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