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DFG-500
 Digital Function Generator

The digital function generator model DFG-500 supplies the Mössbauer Driving System with the reference signal, which determines the waveform of the source motion. With SINE and TRIANGLE (CONSTANT ACCELERATION) the most commonly used waveforms are available. They are stored digitally and are converted to a highly precise output signal by means of a Digital-to-Analog Converter. Besides the analog output signal, the unit provides digital control pulses which can be used to synchronise other instruments. The START and the CHANNEL ADVANCE outputs provide synchronisation signals especially for multichannel analysers.


SPECIFICATIONS
Outputs
Analog Output
  
20 Vpp, (600 Ω)
CHA/START
Pulse Shape:
 
or (switchable)

Pulse Height
 
~ 5 V

Pulse Length
 
1 μs

Impedance
 
50 Ω
Controls
Channels
Front panel toggle switch for selecting the number of channels
 
512 or 1024
Mode
Front panel toggle switch to selecting the waveform of the analog output signal:
- SINE
- TRIANGLE (CONSTANT ACCELERATION)
  
Frequency
Front panel 10-turn potentiometer to adjust the frequency within the range
1 ... 100 Hz
  
Physical

Single width NIM module
  
Weight
0.6 kg
  
Power Requirements

+ 6 V 300 mA
+ 12 V 10 mA
± 24 V 50 mA
or (autom. switching)
+ 12 V 300 mA
± 24 V 50 mA
  
 
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