HMP8156 データシートの表示（PDF） - Intersil

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HMP8156

NTSC/PAL Encoder

Intersil 

HMP8156

As inputs, BLANK, HSYNC, and VSYNC are latched on the CLK2 while CLK is high. CLK is one-fourth the CLK2 fre-

rising edge of CLK2 while CLK is low. As outputs, HSYNC, quency.

VSYNC, and BLANK are output following the rising edge of

CLK2

CLK

P8-P15

P0-P7

OL0-OL2,

M1, M0

BLANK

(INPUT)

BLANK

(OUTPUT)

CLK2

CLK

P0-P15

OL0-OL2,

M1, M0

BLANK

(INPUT)

BLANK

(OUTPUT)

Y0

Y1

Y2

Y3

Y4

Y5

Cb 0

Cr 0

Cb 2

Cr 2

Cb 4

Cr 4

PIXEL 0 PIXEL 1 PIXEL 2 PIXEL 3 PIXEL 4 PIXEL 5

YN

Cr N-1

PIXEL N

FIGURE 3. PIXEL AND OVERLAY INPUT TIMING 6-BIT YCBCR WITHOUT 2X UPSCALING

RGB 0

RGB 1

RGB 2

RGB 3

RGB 4

RGB 5

PIXEL 0 PIXEL 1 PIXEL 2 PIXEL 3 PIXEL 4 PIXEL 5

RGB N

PIXEL N

FIGURE 4. PIXEL AND OVERLAY INPUT TIMING - 16-BIT RGB WITHOUT 2X UPSCALING

7

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