TTi get FPGAs to function
28 May 2010
TTi has combined its 40 years’ experience in developing function generators with the latest advances in FPGAs to produce a combined function/arbitrary/pulse generator with a frequency range covering 1 uHz to 50 MHz.
Previous reliance on custom silicon had prevented TTi from developing an instrument at the right price point (around £900), but the use of an Altera FPGA enabled the new generator, the TG5011, to be introduced in the right price bracket.
The TG5011 offers high purity sine waves with low harmonic distortion and low phase noise over the full frequency range. Square waves have a rise time below 8 ns and low overshoot giving good wave shape right up to 50 MHz.
The instrument includes a pulse generator mode that provides a wide range pulse width and delay independent of period. Pulse period can be set between 2000 seconds and 80 ns (0.5 mHz to 12.5 MHz) and the duty cycle can be as low as one in two billion. Arbitrary waveforms of up to 128k words can be generated at 14 bits vertical resolution and a sampling speed of
125 MS/s.
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