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DS340 Function & Waveform Generator

Frequency output from 1µHz to 15 MHz

Sine, square, ramp and noise output

16,300 point arbitrary waveforms

Linear and log frequency sweeps

1µHz frequency resolution

FSK, modulation

Optional RS-232, GPIB interfaces

Optional 2 ppm TCXO timebase

Specifications

The DS340 is a general-purpose 15 MHz function generator based on Direct Digital Synthesis (DDS). The DS340 also has the ability to output arbitrary waveforms up to 16,300 points long. A combination of features, performance, and low cost make the DS340 ideal for a variety of test and measurement applications.

A Function Generator and a Sweep Generator

You can generate sine and square waves up to 15.1 MHz, and ramps and triangles up to 100 kHz. Frequency resolution is 1µHz for all functions. The DS340 also includes a 10 MHz gaussian white-noise generator.

All functions can be swept logarithmically or linearly in a phase-continuous fashion over the entire frequency range of the instrument. A rear-panel SWEEP output provides a trigger output at the start 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.

Arbitrary Waveforms

Up to 16,300 12-bit arbitrary waveform points can be downloaded to the DS340's waveform memory via the optional GPIB or RS-232 interfaces. PC software for composing, editing, and downloading arbitrary waveforms is provided when the GPIB and RS-232 interfaces are ordered. The waveform memory can be played back at sample rates up to 40 Msamples/s.

FSK Modulation

Both internal and external FSK modes allow the output frequency to be rapidly toggled between two preset values. FSK toggling can be done at a fixed rate of up to 50 kHz, or externally. The external FSK input is sampled every 25 ns.