Frequency; Delay And Response - HP 3320A Operating And Service Manual

Model 3320A/B
Section I1J
Example amplitude program:
3-20. Frequency.
3-21. The 13 signal inputs prefaced F control the three
most significant frequency digits plus the overrange digit.
The inputs representing each digit are as follows:
Each digit is programmed by applying an 8-4-2-1 BCD code
representing the digit desired. All frequency digits
Can
be
selected from 0 to 9. The overrange digit can be either a 0
or
a I. NOTE:Although the maximum frequency of the
3320A/B is specified as
12. 99
MHz. it is possible to
program a higher frequency. However, the response is not
specified and will deteriorate.
Overrange
FIOOO ; L
3 rd MSD
FIOO H
F200 L
F400 H
F800 H
3-25. The three signal inputs prefaced R control the
position of the range switch. Each position is designated by
a number. There are five range positions available (seven in
the 3320A/B Option 006). Programming is accomplished
by applying a 4-2-1 BCD code representing the number for
the range position desired. The following list identifies the
range position by number and respective range:
3-27. The signal input labeled Leveling controls the leveling
mode of operation (leveling HIGH; ON
(>
10Hz), leveling
LOW
=
OFF). The programmed frequency (or group of
frequencies) must be considered when selecting the leveling
mode. If a frequency of 10 Hz or Jess is programmed, the
leveling should be programmed OFF. This will eliminate
any distortion of the 3320B output caused by the leveling
loop (see Paragraph 3-12). If a frequency greater than
10Hz is programmed, the leveling should be programmed
ON (> 10 Hz).
3-23. The signal input prefaced V and the four signal
inputs prefaced VF control the vernier in/out and the
vernier frequency. Programming conditions for vernier
in/out are HIGH; out and LOW; in. Only the first
vernier
digit
can be remotely programmed. Programming is
accomplished by applying an 8-4-2-1 BCD code repre-
senting the digit desired.
3-22.
Vernier.
3-26. leveling.
*
MHz RANGE programmed (See Paragraph 3-24).
3-24. Range.
0;
10
HZ}
I; 100 Hz Option 006
2; 1000 Hz
3; 10kHz
4; 100 kHz
5;
1000 kHz
6; 10 MHz
3-28. Delay and Response.
most significant digit of frequency
least significant digit of frequency
overrange digit
second significant digit of frequency
FI
}
F2
F4
F8
FlO
}
F20
F40
F80
FIOO
}
F200
F400
F800
FIOOO
desired amplitude - 12.34 dBm
LSD
2 nd SD
Al
H AIO
L
A2
H
A20 L
A4
L A40
H
A8 H
A80
H
3
rdSD
MSD and Sign
AIOO - H
AIOOO
L
A200 L
A2000 H
MOO
H
MOOO
H
A800 H A sign
L
Example frequency Program:
desired frequency
LSD
FI ; H
F2; H
F4
L
F8
H
12.34 MHz
*
2
nd
SD
FlO; L
F20
L
F40 H
F80 H
3-29. The two signal inputs prefaced D and the signal
input/outputs labeled Delay Flag, L Delay Initiate, H Delay
Initiate,
+
Ref. and
+
Ref. Delay Flag control the delay and
response time of the 3320A/B.
3-30. The delay is simply an internal clock which counts
for the time interval programmed by the Oland D2 inputs.
During the count sequence, the clock outputs a flag to the
3-3