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Mentor XL
17.5
G
ENLOCK
V
IDEO
I
NPUT
P
ERFORMANCE
The lock mode is assumed set to manual subcarrier phasing, correct Sc.H or follow-external
subcarrier phase, unless otherwise stated.
Video input type
2 BNC high impedance loop through
Return loss @ subcarrier
< -40dB
Video D.C. range
<
±
12V
Video signal amplitude (to keep unit within
specification)
300mV sync/burst
±
6 dB
(285mV 525 operation)
Sync attenuation below which signal will be
indicated as missing.
-8dB (with respect to 300mV/625 or 285mV/525)
Burst attenuation below which signal will be
indicated as monochrome.
-8dB (with respect to 300mV/625 or 285mV/525))
Sync frequency lock range
15.625kHz
±
1.5Hz (
±
100 ppm) - 625
15.734kHz ± 1.5Hz (±100 ppm) - 525
Subcarrier lock range
4.43361875MHz (625)
3.579545MHz (525)
±
200Hz (
±
50 ppm) (see note 1)
Genlock video lock up time
< 7 seconds
Output sync jitter with respect to ‘clean’ genlock
video input
<
±
3ns
Output subcarrier jitter with respect to ‘clean’
genlock video input, lock mode = EXT1/2/3
<
±
0.25
°
Output subcarrier jitter with respect to ‘clean’
genlock video input, lock mode = EXT 4
<
±
2
°
Input video ScH. phase over which ScH. error is
indicated.
+90
±
15
°
, -90
±
15
°
(approx.)
Genlock video sync to output sync timing
accuracy, over full operating temperature range
< 5ns
Genlock video subcarrier to output subcarrier
phase accuracy over full operating temperature
range
< 5
°
Vertical lock up rate, genlock video to output,
when unit set to line drop mode
1 line / 5 field
Note1: Assumes 15625Hz (15734.268Hz NTSC) line frequency and subcarrier varied about nominal
subcarrier frequency.
17.6
G
ENLOCK
O
PERATIONAL
C
ONTROL
Horizontal offset adjustment range
±
32
µ
S
Horizontal offset resolution
1ns
Horizontal offset accuracy
±
5ns over full range
Subcarrier phase adjustment range
0 to 359.9
°
Subcarrier phase resolution
0.1
°
Line offset adjustment range
1 line steps over entire 525/625 range
Page 79 of 84
Trilogy Communications
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