ADV7175 View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

ADV7175

Integrated Digital CCIR-601 YCrCb to PAL/NTSC Video Encoder

Analog Devices 

ADV7175/ADV7176

Mode 1: Slave Option. HSYNC, BLANK, FIELD.

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

In this mode the ADV7175/ADV7176 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 ADV7175/ADV7176 automatically blanks all normally blank lines as per CCIR-624. Mode 1 is illustrated in Figure 17 (NTSC)

and Figure 18 (PAL).

DISPLAY

VERTICAL BLANK

DISPLAY

522 523 524 525

1

2

3

4

5

6

7

8

9

10

11

HSYNC

BLANK

FIELD

EVEN FIELD ODD FIELD

DISPLAY

VERTICAL BLANK

20

21

22

DISPLAY

260 261 262 263 264 265 266 267 268 269 270 271 272 273 274

HSYNC

BLANK

FIELD

ODD FIELD EVEN FIELD

Figure 17. Timing Mode 1 (NTSC)

DISPLAY

VERTICAL BLANK

283 284 285

DISPLAY

622

623

624

625

1

2

3

4

5

6

7

HSYNC

BLANK

FIELD

EVEN FIELD ODD FIELD

DISPLAY

VERTICAL BLANK

21

22

23

DISPLAY

309

310

311

312

313

314

315

316

317

318

319

320

HSYNC

BLANK

FIELD

ODD FIELD EVEN FIELD

Figure 18. Timing Mode 1 (PAL)

REV. A

–11–

334

335

336

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