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參數(shù)資料
| 型號： | TDA9556 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 3 CHANNEL, VIDEO AMPLIFIER, PZIP11 |
| 封裝： | PLASTIC, CLIPWATT-11 |
| 文件頁數(shù)： | 21/22頁 |
| 文件大?。?/td> | 315K |
| 代理商： | TDA9556 |
TDA9556
8/22
6.2
Output voltage
A very simplified schematic of each TDA9556 channel is shown in Figure 3.
The feedback network of each channel is integrated with a typical built-in voltage gain of G=20 (40k/2k).
The output voltage V
OUT is given by the following formula:
V
OUT = (G+1) x V
REF -(G x VIN)
for G = 20 and VREF = 5.6V, we have
V
OUT = 117.6 - 20 x VIN
Figure 3. Simplified schematic of one channel
2k
40k
GNDP
VDD
IN
VREF
GNDA
+
-
OUT
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