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TS4909 数据表(PDF) 17 Page - STMicroelectronics

部件名 TS4909
功能描述  Dual mode low power 150 mW stereo headphone amplifier with capacitor-less and single-ended outputs
PDF  35 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TS4909 数据表(HTML) 17 Page - STMicroelectronics

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TS4909
Electrical characteristics
Doc ID 11972 Rev 9
17/35
Figure 44. Power dissipation vs. output power,
PHG, Vcc = 3 V
Figure 45. Power dissipation vs. output power,
SE, Vcc = 3 V
0
1 02 03 0
4 05 06 0
0
20
40
60
80
100
120
RL = 3 2
Ω
RL = 1 6
Ω
P h antom G rou nd
V cc= 3V , F = 1 kH z
T HD+ N< 1 %
Output Power (mW)
0
5
10
15
20
25
30
35
4 0
4 5
5 0
5 5
0
5
10
15
20
25
30
35
40
RL = 3 2
Ω
RL = 1 6
Ω
Sin g le En d e d
V cc= 3V , F = 1k H z
T H D+ N< 1 %
Output Power (mW)
Figure 46. Power dissipation vs. output power,
PHG, Vcc = 5 V
Figure 47. Power dissipation vs. output power,
SE, Vcc = 5 V
0
2 0
4 0
6 0
8 0
100
12 0
140
16 0
0
50
10 0
15 0
20 0
25 0
30 0
RL = 3 2
Ω
RL = 1 6
Ω
P h a n to m G rou nd
Vcc= 5V, F= 1kH z
T HD+ N< 1 %
Output Power (mW)
0
2 0
4 0
6 0
8 0
1 0 0
1 2 0
140
16 0
0
20
40
60
80
100
RL = 3 2
Ω
RL = 1 6
Ω
Sin g le En d e d
Vcc= 5 V , F = 1 kH z, T HD+ N< 1 %
Output Power (mW)
Figure 48. Crosstalk vs. frequency, SE,
Vcc = 5 V, RL = 16 Ω, Av = 1
Figure 49. Crosstalk vs. frequency, SE,
Vcc = 5 V, RL = 32 Ω, Av = 1
100
1k
10k
-120
-100
-8 0
-6 0
-4 0
-2 0
0
OUT 2 to O U T 1
20k
20
OU T 1 to OU T 2
S ingle E nded
Vc c= 5 V , R L =1 6
Ω
Av =-1 , Po =9 0m W
T
AM B
= 25°C
Frequency (Hz)
100
1k
10k
-120
-100
-8 0
-6 0
-4 0
-2 0
0
O U T 2 to O U T 1
20k
20
O U T 1 to O U T 2
S ingle E n d e d
Vc c= 5 V , R L =32
Ω
A v = -1, P o = 60m W
T
AM B
= 25°C
Frequency (Hz)



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