ADV7191 datasheet(23/69 Pages) AD

23 / 69 page

ADV7190/ADV7191

–23–

REV. 0

ANALOG

VIDEO

Figure 36. Timing Mode 0 Data Transitions, Master Mode

Mode 1: Slave Option

HSYNC, BLANK, FIELD

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

In this mode the ADV7190/ADV7191 accepts Horizontal SYNC and Odd/ Even FIELD signals. A transition of the FIELD

input when

HSYNC is low 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 1 is illustrated

in Figure 37 (NTSC) and Figure 38 (PAL).

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

283

284

285

ODD FIELD

EVEN FIELD

DISPLAY

VERTICAL BLANK

HSYNC

BLANK

FIELD

522

523

524

525

DISPLAY

VERTICAL BLANK

ODD FIELD

EVEN FIELD

HSYNC

BLANK

FIELD

Figure 37. Timing Mode 1, NTSC

622

623

624

625

1234

DISPLAY

VERTICAL BLANK

ODD FIELD

EVEN FIELD

HSYNC

BLANK

FIELD

DISPLAY

309

310

311

312

313

314

315

316

317

318

319

334

335

336

320

DISPLAY

VERTICAL BLANK

ODD FIELD

EVEN FIELD

HSYNC

BLANK

FIELD

DISPLAY

Figure 38. Timing Mode 1, PAL

ADV7191 Datasheet(PDF) 23 Page - Analog Devices

ADV7191 Datasheet(HTML) 23 Page - Analog Devices

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