NJM2256M NJR, NJM2256M Datasheet - Page 10

• Manufacturer Part Number: NJM2256M
• Description: IC VIDEO COLOR SUPRIMPOSER 20DMP
• Manufacturer: NJR
• Type: Signal Superimposerr

Specifications of NJM2256M

• Applications: Video
• Mounting Type: Surface Mount
• Package / Case: 20-DMP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

3. Character Color adjustment
levels.
4. Character Insertion
5. Burst Flag Insertion
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Superimposed color adjustment of the character can be determined in eight different colors, by choosing R, G, B input
Pulse informations from outside character generater shall be given input at the character pulse pin 16 . During the
period of pulse process, the selected color level shall be inserted into each Y, R-Y, B-Y.
Inputting burst period pulse at the HBF pin 12 , the burst flag (150mV) can be inserted in the B-Y, R-Y signals. At the
same time, by putting NTSC / PAL switch 14 , the burst flag can be altered to NTSC or PAL system.
R-Y Signal
B-Y Signal
Character Color Selecting Code
Flg.3 Burst Flag Inserting Example
R
5
5
0
0
5
5
0
0
(LOW 0V, HIGH 5V)
LOW 0V (PAL)
G
5
5
5
5
0
0
0
0
Burst Flag Inserting
+150mV
-150mV
NTSC / PAL SWITCH 14
B
5
0
5
0
5
0
5
0
Magenta
COLOR
Yellow
Green
White
Cyan
Black
HIGH 5V (NTSC)
Red
blue
non insertion
-150mV
Ver.2004-02-17