ADV7191 Analog Devices, ADV7191 Datasheet - Page 26

• Manufacturer Part Number: ADV7191
• Description: Video Encoder with Six 10-Bit DACs and Video Encoder with Six DAC Outputs
• Manufacturer: Analog Devices

ADV7190/ADV7191
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 ADV7190/ADV7191 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 disabled the ADV7190/ADV7191 automatically blanks all normally blank lines as per CCIR-624. Mode 3 is illustrated
in Figure 44 (NTSC) and Figure 45 (PAL).
HSYNC
BLANK
HSYNC
BLANK
FIELD
FIELD
HSYNC
BLANK
HSYNC
BLANK
FIELD
FIELD
522
260
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
ODD FIELD
265
EVEN FIELD
ODD FIELD
2
313
1
266
3
314
2
EVEN FIELD
ODD 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
DISPLAY
284
21
DISPLAY
336
DISPLAY
285
22