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6. IN INFORMATION
Wi 1C1502 (M50554—003SP) : OSD IC
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in Function
Connect to GND using a digital ground terminal.
4
OSC1
No.
Resets the IC internal circuit when the mode is LOW. Equipped with a pull—up resistor.
Hysteresis input.
Oscillation circuit
external terminal
5
OSC2
NTSC/PAL switching
input
Chip select input
with a pull—up resistor.
Serial date input
data. Equipped with a pull—up resistor.
Parity output
An odd parity output. Detects a 1—bit error in a word of SIN.
PAOUT
A switching terminal of the external or internal synchronizing signals. Changes to the
external synchronizing signal when the mode is HIGH. Changes to internal synchronizing
signal when the mode is LOW. SYEX atructures the logical or of the EX resistor of
address 243 in the display controlling resistor and the internal synchronization priority.
SYEX
Equipped with a pull—up resistor.
Connect to GND using an analog ground terminal.
signal.
:
| LeBK | Blanking level
LECHA
| Character level input
CBIN
Color burst signal input
RSIN
Character background
Converts the RS output to the carrier color signal level of the video signal at the external
carrier color signal input
circuit and inputs it.
18
VDbD2
Connect to +5V using an analog power terminal.
of me
Synchronizing signal
switching input
7
10
11
12
Composite video output
Compound video input
An input terminal to detemine the blanking level of the video signal.
me 2 ow a
13
14
15
6
7
1
1
Character background
carrier color signal
output
Color burst signal output | Output color burst signals of 3.58MHz for NTSC and 4.43MHz for PAL.
20
1
Q
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