Odetics
Telecom
GPStar
plus
Model 365
365-8006
Specifications 2 - 24
2.7.8.2
Low Frequency Synthesizer Output (Other Option -2)
This option provides a reference frequency output that is slaved to the internal
disciplined oscillator. The output frequency can be selected in range of 1 kHz to 150
kHz by means of the instrument's front panel keypad as well as commands through the
RS-232 control interface port.
Two (2) single ended TTL level output ports, and four (4) differential output ports are
provided. The user can enable or disable the differential output port by means of the
front panel keypad as well as through the RS-232 control interface. The single ended
output ports can not be disabled.
2.7.8.2.1 Single Ended Output
Connector Identification......................................... TTL 1 OUT, TTL 2 OUT
Number of Outputs..................................................................................... 2
Connector Type ........................................................................ BNC female
Wave Shape ........................................................................... Square wave
Frequency......................................................................... 1kHz to 150 kHz,
user selected in 1 Hz steps
Jitter ........................................................................ < 5 ns RMS at > 1 MHz
< 10 ns RMS at < 1 MHz
Rise/Fall Time (10% to 90% points) ................................................ < 10 ns
Output Drive
High Level ..................................................... > + 2.0 V into a 50
Ω
load
(> + 3.0 V open circuit)
Low Level ...................................................... < + 0.5 V into a 50
Ω
load
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