參數(shù)資料
型號: LA7138M
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PDSO24
封裝: 0.300 INCH, MFP-24
文件頁數(shù): 12/13頁
文件大小: 320K
代理商: LA7138M
LA7138M
No.A0220-8/16
Input/Output form Diagram
Pin
No.
Pin name
I/O
Pin
voltage
Input/
Output
impedance
Function
Equivalent circuit
1
MUTE
I
1.7V
21k
Mute control pin for video signal outputs
(Pins 13, 15, 17, 19 and 21).
Control can be made with a microcontroller
operating on 3.3 to 5.0V power supply.
2
SIG.SW
I
1.7V
21k
Pin to select the input form of pins 3 and 6
according to the type of input signal
(composite/s/component/ base band). Control
can be made with a microcontroller operating
on 3.3 to 5.0V power supply.
Add a 5.1k
resistor in series externally.
3
COMP.IN
I
4.5V
Clamp
form
Video signal input pin.
Enter the composite signal for input of the
composite/S signal. Enter the B-Y or R-Y
signal for input of the component signal.
For input of the base band, enter any of RGB
signals that have a sync signal.
(This pin is connected to GND when the S
signal is entered.)
4
SQ.SW
I
2.4V
9.0G
Pin to enter the squeeze information. Control
can be made with a microcontroller that
operates on 3.3 to 5.0V power supply.
5
LB.SW
I
2.43V
8.1G
Pin to enter the Letter-Box information.
Control can be made with a microcontroller that
operates on 3.3 to 5.0V power supply.
22
COMP.SW
I
2.4V
9.0G
Y/C-MIX ON/OFF control pin. Be sure to set
this pin HIGH in cases other than composite/S
control of pin 2.
Control is possible with a microcontroller
operating on 3.3 to 5.0V power supply or
through selection of VCC/GND on the
substrate.
Continued on next page.
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