參數(shù)資料
型號: ADV7180
廠商: Analog Devices, Inc.
英文描述: 10-Bit, 4 x Oversampling SDTV Video Decoder
中文描述: 10位,4個采樣標清視頻解碼器
文件頁數(shù): 47/112頁
文件大小: 1320K
代理商: ADV7180
ADV7180
NVEND[4:0], NTSC Vsync End, Address 0xE6 [4:0]
The default value of NVEND is 00100, indicating the NTSC
vsync end position.
For all NTSC/PAL vsync timing controls, both the V bit in the
AV code and the vsync on the VS pin are modified.
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 on
an odd field by a line relative to NFTOG.
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 on an even field by a line relative to NFTOG.
NFTOGSIGN, NTSC Field Toggle Sign, Address 0xE7 [5]
Setting NFTOGSIGN to 0 delays the field transition. Set for
user manual programming.
Setting NFTOGSIGN to 1 (default) advances the field
transition. Not recommended for user programming.
Rev. A | Page 47 of 112
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 on the FIELD/DE pin are modified.
ADVANCE TOGGLE OF
FIELD BY NFTOG[4:0]
DELAY TOGGLE OF
FIELD BY NFTOG[4:0]
NFTOGSIGN
ODD FIELD
0
1
NO
YES
NFTOGDELE
ADDITIONAL
DELAY BY
1 LINE
1
0
NFTOGDELO
ADDITIONAL
DELAY BY
1 LINE
1
0
FIELD
TOGGLE
NOT VALID FOR USER
PROGRAMMING
0
Figure 37. NTSC FIELD Toggle
FIELD 1
OUTPUT
VIDEO
H
V
F
622
623
624
625
1
2
3
4
5
6
7
8
9
10
22
23
24
PVBEG[4:0] = 0x5
PVEND[4:0] = 0x4
PFTOG[4:0] = 0x3
FIELD 2
314
OUTPUT
VIDEO
H
V
F
PVBEG[4:0] = 0x5
PVEND[4:0] = 0x4
PFTOG[4:0] = 0x3
310
311
312
313
315
316
317
318
319
320
321
322
335
336
337
0
Figure 38. PAL Default, ITU-R BT.656 (the Polarity of H, V, and F is Embedded in the Data)
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