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參數(shù)資料
| 型號： | M52348SP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | WIDE FREQUENCY BAND ANALOG SWITCH |
| 中文描述： | 寬頻帶模擬開關(guān) |
| 文件頁數(shù)： | 10/11頁 |
| 文件大小： | 85K |
| 代理商： | M52348SP |
MITSUBISHI ICs (Monitor)
M52348FP
WIDE FREQUENCY BAND ANALOG SWITCH
10
CAUTIONS FOR USING THE IC
1. Standard video inputs for R, G and B are specified to be 0.7 V
P-P
.
2. The H and V inputs are specified to be 5.0 VTTL.
3. Input signals into input pins at fully lowered impedance.
4. The H and V output pins (pins
1. Resistance can be inserted into a portion between power
supplies to improve the rising speed. However, set the R value
to limit the current to 7.5 mA or less. In Figure 1, R is 2 k
or
more.
and
) are as shown in Figure
Fig. 1
5. The R, G and B output pins (pins
Figure 2. Pull-down resistance can be added to between GNDs
according to the driving capability. However, set the R value to
limit current I to 10 mA or less. In Figure 2, R is 500
or more.
,
and
) are as shown in
Fig. 2
6. The switch (pin
GND: Outputs signal from the INPUT 1 side.
OPEN: Outputs signal from the INPUT 2 side.
For switching by applying voltage as shown in Figure 3;
0 to 0.5V: Outputs signal from INPUT 1 side.
2 to 5V: Outputs signal from INPUT 2 side.
The applied voltage shall be less than Vcc.
) can be switched with GND and OPEN.
Fig. 3
CAUTIONS FOR MANUFACTURING BOARDS
Built-in wide band analog switch may cause oscillation due to the
wiring shape on the board. Be careful for the following points.
When inserting an output pull-down resistance, make wire
between the output pin and the resistance as short as possible.
Make the load capacitance of output pins as small as possible.
Install the Vcc-GND bus controller capacitance near the pin.
Vcc shall use a stable power supply. (Individual Vcc should use
an independent power supply.)
Insertion of a resistance of several tens of
between the output
pin and the circuit at the next stage makes oscillation harder.
GND should be as wide as possible. Basically, solid earth should
be used.
21
22
1k
5V
5V
R
I=7.5 mA or less
27
30
35
R
430k
50
5V
I=10 mA or less
19
19
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