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參數資料
| 型號： | TSDC4872IJT |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA8 |
| 封裝： | FCP-8 |
| 文件頁數： | 17/29頁 |
| 文件大小： | 1012K |
| 代理商： | TSDC4872IJT |
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Obsolete
Product(s)
- Obsolete
Product(s)
TS4872
24/29
NO
T
F
O
R
NEW
D
E
SIGN
Then
So, we could use for Cfeed a 220pF capacitor
value that gives 24kHz.
Now, we can calculate the value of Cb with the
formula
τb = 50kxCb >> τin = (Rin+Rfeed)xCin
which permits to reduce the pop and click effects.
Then Cb >> 0.8
F.
We can choose for Cb a normalized value of 2.2
F
that gives good results in THD+N and PSRR.
In the following tables, you could find three another
examples with values required for the demoboard.
Remark : components with (*) marking are
optional.
Application n°1 : 20Hz to 20kHz bandwidth and
6dB gain BTL power amplifier.
Components :
Application n°2 : 20Hz to 20kHz bandwidth and
20dB gain BTL power amplifier.
Components :
Application n°3 : 50Hz to 10kHz bandwidth and
10dB gain BTL power amplifier.
Components :
Designator
Part Type
R1
22k / 0.125W
R4
22k / 0.125W
R6
Short Cicuit
R7
330k / 0.125W
C5
470nF
C6
100
F
C7
100nF
C9
Short Circuit
C10
Short Circuit
C12
1
F
S1, S2, S6, S7
2mm insulated Plug
10.16mm pitch
S8
2 pts connector 2.54mm
pitch
J1
SMB plug
U1
TS4872IJ
C FEED =
1
2
π RFEEDFCH
--------------------------------------- = 265pF
Designator
Part Type
R1
110k / 0.125W
R4
22k / 0.125W
R6
Short Cicuit
R7
330k / 0.125W
C5
470nF
C6
100
F
C7
100nF
C9
Short Circuit
C10
Short Circuit
C12
1
F
S1, S2, S6, S7
2mm insulated Plug
10.16mm pitch
S8
2 pts connector 2.54mm
pitch
J1
SMB Plug
U1
TS4872IJ
Designator
Part Type
R1
33k / 0.125W
R2
Short Circuit
R4
22k / 0.125W
R6
Short Cicuit
R7
330k / 0.125W
C2
470pF
C5
150nF
C6
100
F
C7
100nF
C9
Short Circuit
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