Stanford DS335 Function Generator
3 MHz (Distributed only in Germany.)
A Versatile Function Generator
Basic functions include sine, square (up to 3.1 MHz) and ramps and triangles (up to 10 kHz). You can set the frequency of any function with 1 mHz resolution. Frequency accuracy is 5 ppm with the standard timebase and 2 ppm with the optional TCXO timebase. A 3.5 MHz gaussian white-noise generator is also provided.
All functions can be swept logarithmically or linearly in a phase-continuous fashion over the entire frequency range. A rear-panel SWEEP output marks the beginning of a sweep to allow synchronization of external devices. Both uni-directional and bi-directional sweeps can be selected, as well as single-shot and repetitive sweeps.
FSK Modulation
Both internal and external FSK modes allow the output frequency to be rapidly toggled between two preset values. Toggling is done either at a fixed, internal rate of up to 50 kHz, or externally via a rear-panel input.
Distortion Outputs
Outputs have the low phase noise inherent to DDS. Wideband amplifiers maintain good pulse response and provide low distortion. The result is an output capable of driving 10 Vpp into a 50 W load with only a 15 ns risetime, or 20 Vpp into a high-impedance load.
GPIB and RS-232
Both GPIB and RS-232 interfaces are available to provide complete control via an external computer. All instrument functions can be set and read via the computer interfaces.
