TDA7564B Datasheet, PDF (11/34 Pages) STMicroelectronics – 4 x 50W multifunction quad power amplifier with built-in diagnostics features

TDA7564B
Table 4. Electrical characteristics (continued)
Symbol
Parameter
Test Condition
I_NLL Normal load current detection
I_OLH Open load current detection
I_OLL Open load current detection
I²C Bus interface
V_O < (V_S - 5)pk IB2 (D7) = 1
V_O < (V_S - 5)pk IB2 (D7) = 0
V_O < (V_S - 5)pk IB2 (D7) =1
S_CL Clock frequency
V_IL Input low voltage
V_IH Input high voltage
Electrical specifications
Min. Typ. Max. Unit
250
mA
250 mA
125 mA
400 KHz
1.5
V
2.3
V
3.4
Electrical characteristics curves
Figure 5. Quiescent current vs. supply
voltage
Figure 6. Output power vs. supply voltage
(4Ω)
Id (mA)
250
230
210
Vin = 0
NO LOADS
190
170
150
130
110
90
70
8
10
12
14
16
18
Vs (V)
Figure 7. Output power vs. supply voltage
(2Ω)
Po (W)
70
65
60
55
RL = 4 Ohm
f = 1 KHz
50
45
40
35
30
25
20
15
10
5
8 9 10 11
12 13 14
Vs (V)
Po-max
THD = 10 %
THD = 1 %
15 16 17 18
Figure 8. Distortion vs. output power (4Ω,
STD)
Po (W)
100
90
80
RL = 2 Ohm
f = 1 KHz
70
60
50
40
30
20
10
8
9
10 11 12 13
Vs (V)
Po-max
THD = 10 %
THD = 1 %
14 15 16
THD (%)
10
STANDARD MODE
Vs = 14.4 V
1
RL = 4 Ohm
0.1
0.01
0.1
f = 10 KHz
f = 1 KHz
1
10
Po (W)
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