ADV7182 View Datasheet(PDF) - Analog Devices

Part Name

Description

View to exact match

ADV7182

10-Bit, SDTV Video Decoder with Differential Inputs

Analog Devices 

Data Sheet

1

NFTOGSIGN

0

ADVANCE TOGGLE OF

FIELD BY NFTOG[4:0]

DELAY TOGGLE OF

FIELD BY NFTOG[4:0]

NOT VALID FOR USER

PROGRAMMING

ODD FIELD?

YES

NO

NFTOGDELO

1

0

ADDITIONAL

DELAY BY

1 LINE

NFTOGDELE

0

1

ADDITIONAL

DELAY BY

1 LINE

FIELD

TOGGLE

Figure 36. NTSC FIELD Toggle

ADV7182

NFTOGDELO, NTSC FIELD Toggle Delay on Odd Field,

Address 0xE7[7]

When NFTOGDELO is 0 (default), there is no delay.

Setting NFTOGDELO to 1 delays the FIELD toggle/transition

by one line relative to NFTOG (odd field).

NFTOGDELE, NTSC FIELD Toggle Delay on Even Field,

Address 0xE7[6]

When NFTOGDELE is 0, there is no delay.

Setting NFTOGDELE to 1 (default) delays the FIELD toggle/

transition by one line relative to NFTOG (even field).

NFTOGSIGN, NTSC FIELD Toggle Sign, Address 0xE7[5]

Setting NFTOGSIGN to 0 delays the FIELD toggle/transition;

sets to low when manual programming.

Setting NFTOGSIGN to 1 (default) advances the FIELD

toggle/transition; however, it is not not suitable for user

programming.

NFTOG[4:0], NTSC FIELD Toggle, Address 0xE7[4:0]

The default value of NFTOG is 00011, indicating the NTSC

field toggle position.

For all NTSC/PAL field timing controls, both the F bit in the

AV code and the field signal are modified.

FIELD 1

622

623 624

625

1

2

3

4

5

6

7

8

9 10

OUTPUT

VIDEO

H

22

23 24

V

F

OUTPUT

VIDEO

H

PVBEG[4:0] = 0x05

PFTOG[4:0] = 0x03

310 311 312

FIELD 2

313 314 315 316

317 318 319

320

321 322

PVEND[4:0] = 0x04

335

336 337

V

PVBEG[4:0] = 0x05

PVEND[4:0] = 0x04

F

PFTOG[4:0] = 0x03

Figure 37. PAL Default, ITU-R BT.656 (Polarity of H, V, and F Embedded in Data)

Rev. A | Page 45 of 96

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