參數(shù)資料
型號： ADV7178
廠商： Analog Devices, Inc.
英文描述： Integrated Digital CCIR-601 to PAL/NTSC Video Encoder
中文描述： 綜合數(shù)字無線電咨詢委員會，601到PAL / NTSC制式視頻編碼器
文件頁數(shù)： 16/38頁
文件大?。?/td> 280K
代理商： ADV7178
ADV7177/ADV7178
–16–
REV. 0
ANALOG
VIDEO
H
F
V
Figure 17. 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 ADV7177/ADV7178 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 dis-
abled, the ADV7177/ADV7178 automatically blanks all normally blank lines. Mode 1 is illustrated in Figure 18 (NTSC) and
Figure 19 (PAL).
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
283
284
285
ODD FIELD
EVEN FIELD
DISPLAY
DISPLAY
VERTICAL BLANK
HSYNC
BLANK
FIELD
522
523
524
525
1
2
3
4
5
6
7
8
9
10
11
20
21
22
DISPLAY
DISPLAY
VERTICAL BLANK
ODD FIELD
EVEN FIELD
HSYNC
BLANK
FIELD
Figure 18. Timing Mode 1 (NTSC)
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