adv7194 Analog Devices, Inc., adv7194 Datasheet - Page 27

• Manufacturer Part Number: adv7194
• Description: Professional Extended-10? Video Encoder With 54 Mhz Oversampling
• Manufacturer: Analog Devices, Inc.

Mode 3: Master/Slave Option HSYNC, BLANK, FIELD
(Timing Register 0 TR0 = X X X X X 1 1 0 or X X X X X 1 1 1)
In this mode the ADV7194 accepts or generates Horizontal SYNC and Odd/Even FIELD signals. A transition of the FIELD input
when HSYNC is high indicates a new frame, i.e., Vertical Retrace. The BLANK signal is optional. When the BLANK input is dis-
abled the ADV7194 automatically blanks all normally blank lines as per CCIR-624. Mode 3 is illustrated in Figure 49 (NTSC) and
Figure 50 (PAL).
HSYNC
BLANK
HSYNC
BLANK
FIELD
FIELD
HSYNC
BLANK
HSYNC
BLANK
FIELD
FIELD
260
522
622
309
523
261
DISPLAY
DISPLAY
DISPLAY
623
310
524
262
DISPLAY
624
311
263
525
EVEN FIELD
EVEN FIELD
264
625
312
1
ODD FIELD
265
ODD FIELD
EVEN FIELD
2
ODD FIELD
313
1
266
3
314
2
ODD FIELD
EVEN FIELD
267
4
315
3
268
5
VERTICAL BLANK
VERTICAL BLANK
316
4
VERTICAL BLANK
VERTICAL BLANK
269
6
317
5
270
7
318
6
271
8
319
7
272
9
320
273
10
274
11
21
334
22
283
20
DISPLAY
335
23
ADV7194
DISPLAY
284
21
DISPLAY
336
DISPLAY
285
22