STA559BWQS13TR STMICROELECTRONICS [STMicroelectronics], STA559BWQS13TR Datasheet - Page 20

• Manufacturer Part Number: STA559BWQS13TR
• Description: 5-V, 2-A, 2.1-channel high-efficiency digital audio system with QSound QHD
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Electrical specifications
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Figure 11. Output power vs. supply voltage (R
Figure 13. Efficiency vs. P
Eff (%)
Figure 15. Efficiency vs. P
Po(W)
Eff(%)
0.9
0.6
0.3
2.7
2.4
2.1
1.8
1.5
1.2
3
0
+4.5
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
+5
500m
= 8 Ω)
Rload = 8Ώ
8 Ω)
2 Ω)
+5.5
f = 1KHz
1
SE
+6
1
Rload= 8Ώ
f = 1KHz
Vcc= 9V
R load = 2Ώ
BTL
+6.5
Vcc = 5V
f = 1KHz
2
BTL
1.5
+7
2 x Pout (W)
2xPout (W)
Vcc(V)
2
3
out
out
+7.5
(Vcc = 5 V; R
(Vcc = 9 V; R
+8
2.5
THD=10%
4
+8.5
3
THD=1%
+9
5
3.5
+9.5
L
L
=
=
+10
L
6
4
Figure 12. Output power vs. supply voltage (R
Figure 14. Efficiency vs. P
Figure 16. THD vs. frequency
Po(W)
Eff(%)
THD%
0.05
0.02
0.01
0.5
0.2
0.1
1
10
20
9
8
7
6
5
4
3
2
1
0
+4.5
100
90
80
70
60
50
40
30
20
10
0
+5
Stereo DDX Mode
50
Vcc=5V, Po= 1W
= 8 Ω)
4 Ω)
+5.5
500m
100
Rload = 8Ώ
f = 1KHz
+6
BTL
200
Rload = 4Ώ
Vcc = 5V
f = 1KHz
+6.5
BTL
1
Freq(Hz)
500
+7
2xPout (W)
Vcc(V)
1.5
out
THD=10%
+7.5
1k
(Vcc = 5 V; R
THD=1%
+8
2k
2
STA559BWQS
+8.5
6ohm
8ohm
5k
+9
2.5
10k
4ohm
+9.5
L
=
20k
+10
L
3