參數(shù)資料
型號: TS4984EKIJT
廠商: STMICROELECTRONICS
元件分類: 音頻/視頻放大
英文描述: 1.2 W, 2 CHANNEL, AUDIO AMPLIFIER, PBGA15
封裝: LEAD FREE, FCP-15
文件頁數(shù): 12/29頁
文件大小: 1751K
代理商: TS4984EKIJT
Typical Application Schematic
TS4984FC
2/29
1
Typical Application Schematic
Figure 1 show a typical application schematic for the TS4984FC.
Table 1.
External component descriptions
Figure 1.
Application information
Components
Functional Description
RIN L,R
Inverting input resistors which sets the closed loop gain in conjunction
with Rfeed. These resistors also form a high pass filter with CIN (
= 1 / (2 x Pi x RIN x CIN))
CIN L,R
Input coupling capacitors which blocks the DC voltage at the amplifier
input terminal
RFEED L,R
Feedback resistors which sets the closed loop gain in conjunction with
RIN
CS
Supply Bypass capacitor which provides power supply filtering
CB
Bypass pin capacitor which provides half supply filtering
AV L, R
Closed loop gain in BTL configuration = 2 x (RFEED / RIN) on each channel
1
2
12
14
5
16
15
Bias
3
AV = -1
Bypass L
Standby
V
CC1
+
-
+
-
AV = -1
G
ND1
+
-
+
-
10
9
8
7
11
Bypass R
G
ND2
V
CC2
6
13
VO-L
VO+L
VO-R
VO+R
IN-L
IN+L
IN+R
IN-R
U1
TS4984
VCC
+ Cs
1u
1
2
3
VCC
Rin-L
Cin-L
Input L
GND
Rin-R
Cin-R
Input R
GND
Cfeed-L
Rfeed-L
Cfeed-R
Rfeed-R
+ Cb
1u
Neg. Output L
Pos. Output L
Neg. Output R
Pos. Output R
Wire optional
Internal connection
22k
100n
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