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參數(shù)資料
| 型號(hào)： | TS4998IQT |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC16 |
| 封裝： | 4 X 4 MM, ROHS COMPLIANT, QFN-16 |
| 文件頁數(shù)： | 23/33頁 |
| 文件大?。?/td> | 488K |
| 代理商： | TS4998IQT |
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TS4998
Typical application schematics
3/33
1
Typical application schematics
Figure 1 shows a typical application for the TS4998 with a gain of +6dB set by the input
resistors.
Figure 1.
Typical application schematics
Table 1.
External component descriptions
Components
Functional description
RIN
Input resistors that set the closed loop gain in conjunction with a fixed internal
feedback resistor (Gain = Rfeed/RIN, where Rfeed = 50kΩ).
CIN
Input coupling capacitors that block the DC voltage at the amplifier input
terminal. Thanks to common mode feedback, these input capacitors are
optional. However, if they are added, they form with RIN a 1st order high pass
filter with -3dB cut-off frequency (fcut-off = 1 / (2 x π x RIN x CIN)).
CS
Supply bypass capacitors that provides power supply filtering.
CB
Bypass pin capacitor that provides half supply filtering.
Cin1
330nF
Cb
1uF
Cs
1uF
Rin1
25k
Rin2
25k
Rin3
25k
Rin4
25k
Cin2
330nF
Cin3
330nF
Cin4
330nF
VCC
Left Speaker
8 Ohms
Right Speaker
8 Ohms
ST
BYL
C
ont
ro
l
ST
BYR
C
ont
ro
l
P1
Diff. input L-
P2
Diff. input L+
P3
Diff. input R-
P4
Diff. input R+
Optional
1
2
4
3
13
5
6
14
12
11
9
10
8
7
BIAS
STBY
LEFT
RIGHT
LIN-
RIN-
LIN+
RIN+
Bypass
GND
LOUT-
LOUT+
ROUT-
ROUT+
-
+
-
ST
BYL
ST
BYR
Vcc
TS4998
U1
TS4998 - QFN16
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