adv7305a Analog Devices, Inc., adv7305a Datasheet - Page 62

• Manufacturer Part Number: adv7305a
• Description: Multiformat Sd, Progressive Scan/hdtv Video Encoder With Six Nsv 14-bit Dacs
• Manufacturer: Analog Devices, Inc.

ADV7304A/ADV7305A
Mode 2: Slave Option
HSYNC, VSYNC, BLANK
(Timing Register 0 TR0 = X X X X X 1 0 0)
In this mode, the ADV7304A/ADV7305A accepts horizontal
and vertical SYNC signals. A coincident low transition of both
HSYNC and VSYNC inputs indicates the start of an odd field.
HSYNC
BLANK
VSYNC
HSYNC
BLANK
VSYNC
HSYNC
BLANK
VSYNC
HSYNC
BLANK
VSYNC
522
DISPLAY
260
DISPLAY
622
309
523
DISPLAY
DISPLAY
261
524
623
310
262
525
624
311
263
EVEN FIELD
ODD FIELD
1
625
312
264
ODD FIELD
EVEN FIELD
2
313
265
1
Figure 101. SD Slave Mode 2, NTSC
Figure 102. SD Slave Mode 2, PAL
3
266
314
2
4
267
315
3
ODD FIELD
5
VERTICAL BLANK
VERTICAL BLANK
EVEN FIELD
VERTICAL BLANK
268
–62–
316
4
VERTICAL BLANK
6
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 ADV7304A/ADV7305A auto-
matically blanks all normally blank lines as per CCIR-624.
HSYNC is input on the S_HSYNC pin, BLANK on the
S_BLANK pin, and FIELD on the S_VSYNC pin.
269
EVEN FIELD
317
5
ODD FIELD
7
270
318
6
8
271
319
7
9
272
320
10
273
21
11
274
334
22
DISPLAY
20
335
23
283
21
DISPLAY
336
284
DISPLAY
DISPLAY
22
285
REV. A