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'1: Field of application
· -
This st�ndard applies for tne s ·ync signal which is supplied by 'telecines
s·
y
nchr'
o nous operation with m'agnetic
·
sync signal
.
,_2.
The telecine or .VTR interface shall supply a biphase square wave -,signal according to ' f ig. 1
.
fdr int�rlocking purposes.
:
3. Frequency
of
sync·.
·
The f.requency of the sync sign.al is
·2" 5
'.
I y r ain�
s f:sec the sy_ n c signal
·
frame·
rates .
.
In th�··shuttle mode the rnaxirn
'magneti:c ·'film trans��rts
4. Phase.relations
The r
e
la,
t ion between the two "phases of the sync ·signal and the permiss. :i: ble tolerances are
.
1. : shown.
ih: fig. 1.
5, Phase jitter
�Omerltary, .
Variations of
. , ...
6. Level :P
.
L-iii�l {lower level)
i:H-level (upper level)
�
·
1
These value1 s
�,
refer to
7. Sync s
ig_
n al output
The sy11c
sii;nal output of a
. .
;
�
t H-level �P H ) or to take a mi�. 2 mA at L-lev�l. (L H �· •
i,
.
8. Slew rate
Rise time (t , A ) and fall time (t F ) of sync signal should be not less than 100 ps.
GERMAN STANDARDS
SYNC
SIGN.
A
L'
FOR SYNCHRONOUS OPERA'l'ION
OF
MA:GNE'l'r' C FILM TRANSPORTS
·
.
WITH TEEECINE OR VTR INTERFACES
.,
-
Hlm:._
t ransports in accorciance
signal
propoptiona1··:
·
s hall have a freqt,tency of 50 Hz. This ratio applies for other
.
�in .frequency , o'f
·
0
d 600 . Hz :ror
a·
n
·35·
!
· L evel
V.
1eo• ., ••
P hase
RZ
H
.; 1·
.
,
tL�.'
Level
V
Pliase_sz
Forward
phase·.
r
elative·
to the average value shall be less than ±. 5
O V �·P L -�
0:
_ll' V
1
.
2.4VLP H :!£"$
5V
'.
a load current of 1.6
tel-
� cine
VTR interf'�ce
.
TRANSLATI0N
t . o
·
.the frame rate.
'the
·sync
s.ignal.' -
shaH be 1500 Hz
min magnetic ·:tilin
:t."�ans-po·
I
f
t
I
���..!..
1
I
I
I.
I
.
I
I
.
t -
·
Reverse
I
mA,
· :
sba.11
be able 'to supply a min. 0. 3 mA
·
.
July 1982
orn 15 573
Part 2
or VTR °inter . faces
.
·
,
w ith DIN 15 573 'part 1 .
_
For a frame rate of
·
for
16 mm
r ts ..
Time sec
..
.
s� c
Time
.
°
for
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