Fluke DDS Function Generator 271, User Manual

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Introduction and Specifications
Introduction
1
1-3
The rate can be set from dc to 50 kHz internally, or dc to 1 MHz externally.
Triggered burst and gated modes
All waveforms are available as a triggered burst whereby each positive edge of the trigger
signal will produce one burst of the carrier, starting and stopping at the phase angle
specified by the start-stop phase setting.
The number of cycles in the burst can be set between 0.5 and 1023. The gated mode turns
the output signal on when the gating signal is high and off when it is low.
Both triggered and gated modes can be operated from the internal trigger generator
(0.005 Hz to 50 kHz) or from an external source (dc to 1 MHz).
Waveform hop and noise
The generator can be set up to hop between a number of different waveform settings,
either at a predetermined rate or in response to a manual trigger.
Up to 16 different hop waveforms can be defined in terms of frequency, amplitude,
function, offset and duration. Duration is variable in 1 ms steps up to 60 s. The generator
can also be set to simulate random noise within the bandwidth 0
.
03 Hz to 700 kHz with
adjustable amplitude and offset.
Multiple phase-locked generators
The signals from the reap panel
CLOCK IN/OUT
socket and
SYNC OUT
sockets can
be used to phase lock two or more generators.
Phase locked generators can be used to generate multi-phase waveforms or locked
waveforms of different frequencies.
Easy and convenient to use
All of the main generator parameters are clearly displayed together on a backlit liquid
crystal display (LCD) with 4 rows of 20 characters. Sub-menus are used for the
modulation modes and other complex functions.
All parameters can be entered directly from the numeric keypad. Alternatively most
parameters can be incremented or decremented using the rotary encoder.
This system combines quick and easy numeric data entry with quasi-analogue adjustment
when required.
Fully programmable via addressable RS232 and GPIB interfaces
The generator has RS-232 and GPIB (IEEE-488) interfaces which can be used for remote
control of all of the instrument functions and for downloading arbitrary waveforms.
As well as operating in conventional RS-232 mode the serial interface can be used in
addressable mode whereby up to 32 instruments can be linked to a single PC serial port.
1.888.475.5235 info@Fluke-Direct.com
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