19
(6-3) Programmable partial [Option]
By designating the high-speed transfer portion with external PARTIAL signal input, the
camera read out only the portion of CCD area necessary for your application. This is
available under external sync.
(Conditions)
l
The starting point of external partial signal is [
※
1] from the falling edge of ex-VD.
l
The external partial signal is controlled at each ex-HD falling edge. Set the start /
finish of the external partial signal in 1H increments.
l
The number of 1H high-speed transfer line is 10 lines. The actual lines are
determined by the external partial signal “hi” length. (Minimum: 2H = 20 lines)
l
After high-speed transfer, 2H is allocated to blank transfer period. Normal transfer
starts at the next line.
l
VIDEO OUT vertical blanking is;
V blanking = [
※
1](H) + n(H) + BLK transfer [2(H)] – 1H
Example follows below.
(High-speed minimum 2H = 20 lines, Normal-speed 70 lines + BLK 2H)
Note: Items shown as “option” in this document is not included in your purchase as
standard components. Contact our dealer / distributor for details.
EXT.VD
EXT.HD
PARTIAL PULSE
VIDEO OUT
H-speed n(H)
1
(H)
1
0 Line
a(H)
［※1］
n(H) Total line = n(H) x
1
0
line
Start
Finis
h
BLK trans. 2(H)
N-speed
2(H)
1
/
1
20s Interlace
1
st field
2nd field
1
2.0
11
.5
1
/60s non-interlace
1
2.0
[
※1
]
a(H)
