ML6461 Просмотр технического описания (PDF) - Micro Linear Corporation

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ML6461

CCIR656 NTSC Video Encoder

Micro Linear Corporation 

ML6461

FUNCTIONAL DESCRIPTION (Continued)

fields (1-2) and (3-4). The ML6461 also supports a frame

based synchronization mode (B17 = FSYNC = 1) where a

vertical reset pulse unconditionally resets the vertical line

counter to line 4. For proper operation only one active

edge should be sent per frame. The polarity is controlled

by SENSE_VSYNC (B10).

HSYNC

VSYNC

HSYNC

Line 3

Line 4

Coincident

Active Edges

Line 5

Line 6

Beginning of

an Odd Field

Line 265

Line 266

Line 267

Line 268

Line 269

VSYNC

Beginning of

an Even Field

Figure 1. Example of the Beginning of the Odd And Even Fields vs. HSYNC and VSYNC in Master Mode.

(SLAVE/MASTER = 0, SENSE_HSYNC = 0, SENSE_VSYNC = 0)

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