Short Description Hmf2525 / Hmf2550 - Hameg HMF2525 Handbuch

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Fig. 2.2: Rear panel of the HMF2550 / HMF2525

3 Short description HMF2525 / HMF2550

The new HMF series arbitrary function generators with 25 MHz
and 50 MHz respectively at 250 MSample/s provide 14 bit reso-
lution. Featuring a 9 cm QVGA-TFT display and 8 ns rise time
the new instruments from Hameg set the standard in their
class.
Besides standard waveforms like sine, rectangle and triangle
(symmetry 0 ... 100%), the HFM2525 and HFM2550 provide
users with powerful arbitrary signal functionality. On the one
hand users can choose among numerous pre-defi ned signal
shapes like sin(x)/x, cardiac, white or pink noise; on the other
hand they can take advantage of customer specifi c, arbitrary
curve shapes with a bandwidth of more than 50 MHz and a
signal length of up to 256 kPts. Arbitrary waveforms can be
developed using the comfortable built in editor or by using
the included PC software, whose results can be stored in the
internal, generously sized non volatile memory. Moreover,
stored waveforms, derived e.g. from an oscilloscope, can be
loaded via front USB port from an USB memory stick or can
imported via the complimentary HMArb software (available for
download at http://www.hameg.com).
Fig. 3.1: Example for an oscilloscope signal which can be imported
to the HMF
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S h o r t d e s c r i p t i o n H M F 2 5 2 5 / H M F 2 5 5
The operation modes burst, wobble, gating, ext. triggering and
the modulation functions AM, FM, PM, PWM and FSK (int. and
ext.) can be applied on all above mentioned signal shapes.
Particular emphasis has also been put on a powerful and practi-
ce oriented pulse generator. Providing pulses with a recurrence
rate of up to 25 MHz (12,5MHz for the HMF2525), a pulse width
can be chosen in the range of 10ns (20ns for the HMF2525) up
to 10000s with a resolution of 5ns. Rise time can be selected
in the range from 8 ns to 500 ns – a very useful feature when
characterising input hysteresis of semiconductor devices.
All parameters, including the current waveform are shown
concurrently on the high-contrast TFT display. Interactive, illu-
minated soft keys and the direct access of all relevant functions
ensure the typical Hameg easy operability. The HMF series is
equipped with an USB/RS-232 dual interface. Optionally, an
Ethernet/USB or GPIB (IEEE-488) interface is available.
Fig. 3.2: Display of the HMF 2550 /2525
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Subject to change without notice