NJM2247BM NJR, NJM2247BM Datasheet - Page 12

• 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

6. C Inversion
applied that the reference signal (burst flag) shall be inverted into one hundred and eighty degrees at the time of de –
coding.
7. Y Inversion
inverter, and then blanking period signal shall be adjusted to the black level with blanking pulse.
8. Adjusting pin
The color phase of the picture shall be inverted for one hundred and eighty degrees setting C inversion pin 10 . It is
Superimposed character color do not change at the picture inversion.
The brightness of the picture shall be inverted by setting Y inversion pin 19 . It is that Y signal shall be inverted by the
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(1) BF Level Pin 13
(2) Inversion Set Up Correction Pin 18
It is the burst flag minor adjusting pin. The burst level shall be adjusted at the open voltage, 0.3V level
adjustment. Therefore, the most recommended on operation with the open condition, as it has been controlled
at 135 to 165 mV (burst level) on specification.
It is the minor adjusting pin of Y inversion signal level. The inverting black level shall be adjusted at the open
voltage, 1.8 V level adjustment. Therefore, the most recommended on operation with the open condition, as it
has been controlled with 0.59 to 0.77 V (inverting black level) on specification.
Y output
Burst
Figure 4. Y Inversion Output Example
C Inversion Form
Y Inversion Form
Non inversion
Non Inversion
LOW 0V
LOW 0V
Y INVERSION PIN 19
C INVERSION PIN 10
HIGH 5V
Inversion
HIGH 5V
Inversion
Ver.2004-02-17