Specification-1910
Operators
Table 1-4 (cant)
Perlormance
Supplemental Perl. Ck.
Characteristics
Requirements
Information
Step.
No.
Frequencies 500 kHz
Digitally derived from
1.25 MHz 14.3 MHz clock.
2.0 MHz
3.0 MHz
3.58 MHz
4.1
MHz
Packet Rise Time The packets are envelope shaped.
500 kHz 140
ns
± 14 ns
The Remaining
400
ns
±40
ns
Hanmonic Content
At least 40
dB
down
Line Timing
See
Fig.
1-2C.
MULTIPULSE 70/1 00
70
70
IRE
± 0.7 IRE white reference bar.
10
IRE
± 0.5 IRE pedestal level.
100
100 IRE
zO.7
IRE white reference bar.
No
pedestal.
70 and 100
Rise Time
250
ns
±25
ns
Pulse-to-Bar Ratio 100% ±
1%
Pulse Half Amplitude
Duration
2T HAD
250
ns
±25
ns
25T HAD
3.14
j.LS
±0.3
j.LS
12.5T HAD
1
.57
j.LS
± 150 ns
Modulated Pulse
Frequencies
MP
70 MP 100
1st Pulse
1.25 MHz 1.0 MHz
The first pulse HAD is 25T,
and the remaining pulse
2nd Pulse 2 MHz 2 MHz HADs are 12.5T.
3rd Pulse 3 MHz 3 MHz
4th Pulse
3.58 MHz 3.58 MHz
All pulses are digitally derived
from 14.3
MHz
clock.
5th Pulse
4.1
MHz
4.2 MHz
Group Delay 10
ns
or less
31
Other Perturbations
0.5
IRE
or
less.
on Baseline
Line Timing
See
Figs. 1-2D and 1-2E.
1-8
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