KS0123 查看數據表（PDF） - Samsung

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KS0123

DIGITAL VIDEO ENCODER

Samsung 

KS0123 Data Sheet

MULTIMEDIA VIDEO

VIDEO ENCODING

The incoming digital video are gain and offset adjusted according to the output format, NTSC or PAL, controlled by

the format register. Both the luminance and chrominance are band limited and interpolated to 27 MHz sampling

rate for digital to analog conversion. The NTSC output can be selected to include a 7.5 IRE pedestal. The user can

also select either 650 kHz or 1.35 MHz chrominance bandwidth. The U and V components have equal

bandwidth.

Luminance Filter

The luminance signal is band-limited to 6 MHz. The filter is implemented with a 15 tap linear phase FIR filter. Figure

4 shows the frequency responses.

0

-5

-10

-15

-20

-25

-30

-35

-40

-45

0

2

4

6

8

10

12

Mhz

0

-0.2

-0.4

-0.6

-0.8

-1

-1.2

-1.4

-1.6

-1.8

-2

0

1

2

3

4

5

6

Mhz

Figure 4. Luminance Filter Frequency Response

Modified on May/04/2000

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