Auxilliary Inputs
External
REF
IN
1/10
MHz
(Typical)
For phase locking the
HP
E1440A
to an external frequency reference.
Signal from 0 dBm to 20 dBm into 50R
Reference signal must be
a
sub-harmonic of
10
MHz
from
1
MHz
to
10 MHz.
Connector: BNC or VXI-system clock
AM:
Input Impedance: 10 kR
Connector: BNC
Max.
external voltage:
f
15
V
PM:
Input Impedance: >40 kR
Connector: BNC
Max.
external voltage:
f
15 V
VXlbus Interface
Message based servant:
Capabilities
A16/A24 Dl6 Master
A16 Dl6 Slave
Option
001
Frequency range:
High-Voltage Output
1
pHz
to
1
MHz
Amplifier
Amplitude:
4
mV to 40 V(p-p) in
8
ranges, 4-12-40 sequence into 5000,
<
500 pF load. Ranges are four times the standard instrument
ranges, without DC offset.
Accuracy:
f
2% of full output for each range at 2 kHz.
Flatness:
f
10% relative to programmed amplitude.
Sinewave Harmonic Distortion:
Harmonically related signals will be less than the following levels
(relative to the fundamental full output into 5000, 500 pF load):
Frequency Range
Squarewave =se/Fall Time (typical):
5125 ns, 10% to 90% of peak-to-peak output voltage with 5000,
500
pF
load.
7
Harmonic
Level
10
HZ
-
199
kHz
200
kHz
-
1
MHz
A-8
Specifications
-60
dBc
-40
dBc
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