NJM2247BM NJR, NJM2247BM Datasheet - Page 11

• Manufacturer Part Number: NJM2247BM
• Description: IC VIDEO COLOR SUPRIMPOSER 20DMP
• Manufacturer: NJR
• Type: Signal Superimposerr

Specifications of NJM2247BM

• Applications: Video Players
• 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
period of pulse process, the selected color level shall be inserted into each Y, R – Y, B – Y.
5. Burst Flag Insertion
same time, by putting NTSC / PAL switch 14 , the burst flag can be altered to NTSC or PAL system.
Ver.2004-02-17
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
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
R – Y Signal
B – Y Signal
R
5
5
0
0
5
5
0
0
Fig. 3 Burst Flag Inserting ExampLe
Character Color Selecting Code
(LOW 0V, HIGH 5V)
LOW 0V (PAL)
Burst Flag Inserting
G
5
5
5
5
0
0
0
0
+ 150mV
- 150mV
NTSC / PAL SWITCH 14
B
5
0
5
0
5
0
5
0
HIGH 5V (NTSC)
non insertion
- 150mV
Magenta
COLOR
Yellow
Green
White
Cyan
Black
Blue
Red
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