TTI tg1010a DATASHEETS
THURLBY THANDAR INSTRUMENTS
TG1010A
10MHz programmable DDS function generator
Arbitrary Waveform Capability, Extensive Modulation Modes
Direct Digital Synthesis
All the versatility of a function generator
with the precision of Direct Digital Synthesis
A DDS generator at a
non-DDS price
The TG1010A breaks new ground by of
fering a DDS functiongenerator at asimi
lar price to that of a conventional
generator of comparable functionality.
It can generate a wide variety of wave
formsbetween0.1mHzand10MHzwith a
resolutionof 7digits andan accuracy bet
ter than 10ppm.
Direct digital synthesis for
accuracy & stability
Direct digital synthesis (DDS) is a tech
nique for generating waveforms digitally
using a phase accumulator, alook-up ta
ble and a DAC. The accuracy and stabil
ity of the resulting waveforms is related to
that of the crystal master clock.
TheDDSgenerator offers notonlyexceptional accuracy and stability but also high
spectral purity, low phase noise and excellent frequency agility.
A wide range of
waveforms
The TG1010A generates high quality
sine, square and pulse waveforms over
the full frequency range of 0.1mHz to
10MHz.
Triangle waveforms, ramp waveforms and
multi-levelsquarewavescanalsobegener
atedsubjectto some limitationsinthe maxi
mum useable frequencies.
Variablesymmetry/duty-cycleisavailable
for all waveforms.
Powerful modulation modes
Sweep
Allwaveformscan besweptover theirfull
frequency range at a rate variable be
tween 10 milliseconds and 15 minutes.
The sweep is fully phase continuous.
Sweep can be linear or logarithmic, sin
gle or continuous. Singlesweeps can be
triggered from the front panel, the trigger
input, or the digital interfaces.
Two sweep markers are provided which
are adjustable whilst sweep is running.
The markers can provide a visual indica
tion of frequency points on a ‘scope or
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chart recorder.
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AM
Amplitude Modulation is available for all
waveforms and is variable in 1% steps up
to 100%. An internal AM source is incor
porated. Alternatively modulation can be
controlled from an external generator.
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FSK
Frequency Shift Keying provides phase
coherent switching between two selected
frequencies at a rate defined by the
switching signal source.
Theratecan be setfromdcto 50kHz inter
nally, or dc to 1MHz externally.
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Fully bus programmable
Addressable RS-232
standard, GPIB optional
The TG1010A has an RS-232 interface
asstandardwhich can beusedforremote
controlof all of the instrumentfunctions or
for the down-loading of arbitrary wave
forms.
As well as operating as a conventional
RS-232 interface, it can also be used in
addressable mode whereby up to 32 in
struments can be linked to one PC serial
port as part of a TTi “ARC” system.
Alternatively, a GPIB interface conform
ing to IEEE-488.2 is available as an op
tion.
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0.1mHz to 10MHz frequency range, 7 digit resolution.
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Eight standard waveforms, plus multiple “complex”
waveforms, true arbitrary waveforms and noise.
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Powerful modulation modes including Sweep, AM,
Gating, Trigger/Burst, FSK and Hop.
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Variable symmetry, variable start/stop phase.
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20V pk-pk output from 50Ωor 600Ω(switchable).
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Storage for five Arbitrary waveforms (1024 x 10-bits).
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Fully programmable via RS-232 or GPIB interfaces.
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