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TS4909 数据表(PDF) 20 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) 20 Page - STMicroelectronics

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Electrical characteristics
TS4909
20/35
Doc ID 11972 Rev 9
Figure 62. Power supply rejection ratio vs.
frequency vs. Vcc, PHG
Figure 63. Power supply rejection ratio vs.
frequency vs. Vcc, SE
1 0 0
1k
10 k
-8 0
-7 0
-6 0
-5 0
-4 0
-3 0
-2 0
-1 0
0
V cc= 5V
V cc= 3V
20 k
20
V cc= 2.6 V
P h a n to m G rou nd, In p u ts gro und ed
Av=-1 , RL
≥16Ω, Cb=1μF, T
AM B
=2 5 ° C
Frequency (Hz)
1 0 0
1 k
10k
-8 0
-7 0
-6 0
-5 0
-4 0
-3 0
-2 0
-1 0
0
V cc= 5V
V cc= 3V
20 k
20
V cc= 2 .6V
Single Ende d, Inpu ts grou nde d
Av= -1, R L
≥16Ω, Cb=1μF, T
AM B
=25° C
Frequency (Hz)
Figure 64. Power supply rejection ratio vs.
frequency vs. gain, PHG
Figure 65. Power supply rejection ratio vs.
frequency vs. gain, SE
1 0 0
1k
10 k
-8 0
-7 0
-6 0
-5 0
-4 0
-3 0
-2 0
-1 0
0
Av =-4
Av= -1
20 k
20
Av= -2
P h a n to m G rou nd, In p u ts gro und ed
V cc= 3 V , R L
≥16Ω, Cb=1μF, T
AM B
=2 5 ° C
Frequency (Hz)
1 0 0
1 k
10k
-8 0
-7 0
-6 0
-5 0
-4 0
-3 0
-2 0
-1 0
0
Av= -4
Av= -1
20 k
20
Av= -2
Single Ende d, Inpu ts grou nde d
Vcc = 3V, R L
≥16Ω, Cb=1μF, T
AM B
=25°C
Frequency (Hz)
Figure 66. PSRR vs. frequency vs. bypass
capacitor, PHG
Figure 67. PSRR vs. frequency vs. bypass
capacitor, SE
1 0 0
1k
10 k
-8 0
-7 0
-6 0
-5 0
-4 0
-3 0
-2 0
-1 0
0
Cb = 1
μF
C b = 1 00n F
C b =470 nF
20 k
20
C b =22 0nF
P h a n to m G rou nd, In p u ts gro und ed
Av=-1 , RL
≥16Ω, Vcc=3V, T
AM B
=25 ° C
Frequency (Hz)
1 0 0
1 k
10k
-8 0
-7 0
-6 0
-5 0
-4 0
-3 0
-2 0
-1 0
0
Cb = 1
μF
C b =100 nF
C b = 4 7 0nF
20 k
20
C b = 2 20n F
Single Ende d, Inpu ts grou nde d
Av= -1, R L
≥16Ω, Vcc=3V, T
AM B
=2 5 ° C
Frequency (Hz)



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