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參數資料
| 型號： | LA75600VA |
| 元件分類： | 接收器 |
| 英文描述： | AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24 |
| 封裝： | 0.225 INCH, SSOP-24 |
| 文件頁數： | 3/16頁 |
| 文件大小： | 386K |
| 代理商： | LA75600VA |
LA75600VA
No.A0325-11/16
Pin Function
Pin No.
Pin name
Function
Equivalent circuit
1
SIF INPUT
SIF input.
The input impedance is about 1k
.
Since interference signals* entering this input can
result in buzzing and beat signals, the pattern layout
for the signal input to this pin must be designed
carefully.
*: Signals that can interfere with audio include video
and chrominance signals. Thus the VIF carrier signal
can cause interference.
2
BIAS FILTER
The FM detector signal-to-noise ratio can be improved
by inserting a filter in the FM detector bias line.
C1 must be 0.47
F or higher, and we recommend 1F.
If the FM detector is not used, a 2 k
resistor must be
inserted between pin 2 and ground. This stops the FM
detector VCO circuit.
3
SIF OUT
Outputs the intercarrier detector output that has been
passed through a high-pass filter.
(4.5MHz output)
4
NC
This pin should be left open.
5
VCC
Use lines that are as short as possible for VCC / ground
decoupling.
Continued on next page.
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