AK8857VQ Datasheet, PDF (32/105 Pages) Asahi Kasei Microsystems – Dual Channel Digital Video Decoder

[AK8857VQ]
Input : 525-line, Horizontal line : 480-line, Output : Progressive (30frm/sec) (EVEN field output)
Input
523 524 525 1
2
3
4
5
6
7
8
9
10 11 12
Video Signal
HD
HACT
DVALID
VD
VACT
FIELD
13 14 15 16 17 18 19 20 21 22 23 24 25
260
Input
Video Signal
HD
HACT
DVALID
VD
VACT
FIELD
Input
261 262 263 264 265 266 267 268 269 270 271 272 273 274 275
Video Signal
HD
HACT
DVALID
VD
VACT
FIELD
276 277 278 279 280 281 282 283 284 285 286 287 288
522
Input
Video Signal
HD
HACT
DVALID
VD
VACT
AB CD
FIELD
Because of line repeating process during progressive signal conversion, as shown in the figure above
A line and B line / C line and D line is output as the same signal. The FIELD signal is being toggle.
MS1189-E-01
-32-
2010/12