ASAHI KASEI
(1) NTSC-J
[AK8817/18]
SYNC Signal waveform, Burst Waveform generator
S yn c ris e tim e
5 0 %
B u rs t H e ig h t
9 0 %
B u rs t
5 0 %
5 0 %
H o riz o n ta l
S yn c L e v e l
re fe re n c e p o in t
1 0 %
S yn c
H . re f. to B u rs t S ta rt
measurement
point
Consumer Quality
tolerance
units
value
Total line period(derived)
Sync Level
63.556
40
usec
IRE
+/- 3
Sync rise time
Horizontal Sync width
10% - 90%
50%
140
4.7
Max 250
+/- 0.1
nsec
usec
Horizontal reference point to
burst start
Burst *
50%
50%
19
defined by SC/H
cycles
9
40
+/- 1
+/- 3
cycles
IRE
Burst Height **
* there is a case where tolerance of Sync rise time is added to Sync width tolerance.
* Measurement of Burst time length is made between the Burst start point which is defined as the zero-cross point,
preceding the first half-cycle of the sub-carrier where Burst amplitude becomes higher than 50 % level and the Burst end
point, defined in the same manner.
9 cycles +/- 1cycle
19 cycles +/-10°
50%
NTSC Signal
Rev.001E
35
2009 / 12
AKM [ ASAHI KASEI MICROSYSTEMS ]
