ADV7310 Ver la hoja de datos (PDF) - Analog Devices

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ADV7310

Multiformat 216 MHz Video Encoder with Six NSV™ 12-Bit DACs

Analog Devices 

Mode 2—Master Option

(Timing Register 0 TR0 = X X X X X 1 0 1)

In this mode, the ADV7310/ADV7311 can generate horizontal

and vertical sync signals. A coincident low transition of both

HSYNC and VSYNC inputs indicates the start of an odd field.

A VSYNC low transition when HSYNC is high indicates the

start of an even field. The BLANK signal is optional. When the

BLANK input is disabled, the ADV7310/ADV7311 automati-

cally blank all normally blank lines as per CCIR-624. HSYNC

is output on S_HSYNC , BLANK on S_BLANK, and VSYNC

on S_VSYNC.

ADV7310/ADV7311

HSYNC

VSYNC

BLANK

PAL = 12 ؋ CLOCK/2

NTSC = 16 ؋ CLOCK/2

PIXEL

DATA

PAL = 132 ؋ CLOCK/2

NTSC = 122 ؋ CLOCK/2

Cb Y Cr Y

Figure 87. SD Timing Mode 2 Even to Odd Field Transition Master/Slave

HSYNC

VSYNC

BLANK

PAL = 12 ؋ CLOCK/2

NTSC = 16 ؋ CLOCK/2

PAL = 864 ؋ CLOCK/2

NTSC = 858 ؋ CLOCK/2

PIXEL

DATA

Cb

Y

Cr

Y

Cb

PAL = 132 ؋ CLOCK/2

NTSC = 122 ؋ CLOCK/2

Figure 88. SD Timing Mode 2 Odd to Even Field Transition Master/Slave

REV. A

–71–

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