Versatile Frequency Generator VFG 150 Versatile Freq Generator VFG 150
The VFG-150 has 4 digital outputs with a resolution of 5 ns and a minimal pulse width of 10 ns. It can be used as a pulse or a pattern generator. Streaming mode sequence transfer provides modulated waveforms at any wavelength. By programming the frequency, phase and amplitude of the VFG-150’s sine waveform and the state of its outputs at any instant of time, a sequence can be defined.
The VFG-150 provides phase-coherent and phase-continuous switching. Phase-continuous mode means that phase information is not preserved when switching between different frequencies. In phase-coherent switching mode, phase information for many frequencies is preserved. In principle, an Arbitrary Waveform Generator (AWG) can provide these two modes as well. However, the available memory usually limits the application of an AWG for many applications. The VFG-150 places no memory restrictions on pulses and pulse sequences. The way it handles data and generates a desired waveform allows the user to create a pulse sequence of arbitrary length where each pulse has a desired frequency up to 150 MHz, amplitude, and phase.
Factfile
| Frequency range | 1 – 150 MHz | |
| Frequency resolution | 32 bit, better than 50 mHz resolution | |
| Frequency stability | Internal reference | Better than 10-4 |
| External reference input | Accepts 10, 20 , and 25 MHz | |
| Frequency switching modes | Phase continuous and phase coherent switching | |
| Frequency switching speed | Internal trigger | 5 ns |
| External trigger | Fixed latency of <100 ns from trigger pulse | |
| Maximum sequence length | Unlimited | |
| Phase resolution | 16 bit, better than 0.1 mrad | |
| Maximum amplitude | -4 dBm | |
| Amplitude resolution | 16 bit, usable dynamic range is limited to ~8 bit | |
| Amplitdue stability | 100 ppm/K | |
| Noise level | Better than -70 dB within 1 kHz band of carrier | |
| Dynamic range | Better than 50 dB | |
| Inputs | Trigger | 5V CMOS, digital coupler isolated |
| Reference frequency | -16 to +7 dBm at 50Ω, transformer isolated | |
| Computer control | USB 2.0 | |
| Power | 100 to 240 VAC, 1A max., 20W max. | |
| Outputs | Synthesized waveform | Up to -4 dBm at 50Ω |
| Transformer isolated | ||
| Auxiliary digital outputs | 4x 5 V TTL into 50Ω | |
| Each separate digital coupler isolated | ||
| Minimum pulse width 10 ns. | ||
| Size | 23 cm x 18 cm x 9.5 cm | |
| Weight | 1.9 kg |
Deliveries
2- 3 weeks