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LC74789M Datasheet(PDF) 3 Page - Sanyo Semicon Device

No. de pieza LC74789M
Descripción Electrónicos  On-Screen Display Controller
Download  23 Pages
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Fabricante Electrónico  SANYO [Sanyo Semicon Device]
Página de inicio  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LC74789M Datasheet(HTML) 3 Page - Sanyo Semicon Device

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No. 5732-3/23
LC74789, 74789M, 74789JM
Continued from preceding page.
Pin No.
Pin Name
Function
Notes
13
CVOUT
Video signal output
Composite video signal output
14
VSS2
Ground
Ground connection (analog system ground)
15
CVIN
Video signal input
Composite video signal input
16
CVCR
Video signal input
SECAM chrominance signal input
17
VDD1
Power supply
Power supply (+5 V: digital system power supply)
Video signal input to the internal sync separator circuit (Used as either the horizontal
18
SYNIN
Sync separator circuit input
synchronizing signal or the composite synchronizing signal input when the internal sync
separator circuit is not used.)
19
SEPC
Sync separator circuit bias
Internal sync separator circuit bias voltage monitor
voltage
20
SEPOUT
Composite synchronizing
Internal sync separator circuit composite synchronizing signal output. Can be switched to
signal output
function as a signal (high, low, or ST. pulse) output by the SEL0 and MOD0 setting.
Inputs the vertical synchronizing signal created by integrating the SEPOUT pin output signal.
21
SEPIN
Vertical synchronizing signal input
An integration circuit must be connected to the SEPOUT pin. This pin must be tied to VDD1 if
unused. This pin can be switched to function as the frame signal input mode by setting SEL1
high. This is valid when CTL3 is set high. This input has hysteresis characteristics.
22
CDLR
Background color phase
Background color phase adjustment. Connect a resistor between this pin and ground.
adjustment
23
RST
Reset input
System reset input.
A pull-up resistor is built in and the input has hysteresis characteristics.
24
VDD1
Power supply (+5 V)
Power supply (+5 V: digital system power supply)
Note: Both VDD1 pins must be connected to the power supply.


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