UPD6465CS datasheet(15/52 Pages) NEC

부품명	UPD6465CS

상세설명	ON-SCREEN CHARACTER DISPLAY CMOS LSI FOR 12-LINE, 24-COLUMN DECK-TYPE VCR

PDF	52 Pages

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제조업체	NEC [NEC]

홈페이지	http://www.nec.com/

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15 / 52 page

µPD6464A,6465

2.6

Video Signal Method Control Command

The

µPD6464A, 6465 can select the NTSC, PAL, and PAL-M methods for the internal video signal.

The

µPD6464A can also select the PAL-N method.

When the SECAM method is selected, the internal video signal is output by the PAL method.

N/P2Note

N/P1

N/P0

Video signal method control bits

N/P1

N/P0

Function

NTSC

PAL

SECAM

PAL-M

N/P2

PAL-N

Setting prohibited

Note Fixed to “0” ( PD6465).

•

Video signal method control bits

These bits can generate internal NTSC, PAL, PAL-M and PAL-N (

µPD6464A only) video signals.

With the SECAM method, however, a color subcarrier from the SECAM color subcarrier input pin (pin 22) is fixed

in the external mode. In the internal mode, an internal PAL video signal is generated.

The internal video signal is generated by using a

×4 multiplier or an external crystal. Use a crystal with a frequency

of 4 fSC for each video signal.

UPD6465CS 데이터시트(PDF) 15 Page - NEC