DS335 Function Generator0 pages

Synthesized Function Generators
DS335 — 3 MHz function generator
DS335 Function Generator
· 1 µHz to 3.1 MHz frequency range
· 1 µHz frequency resolution
· Sine, square, ramp, triangle & noise
· Phase-continuous frequency sweeps
· FSK modulation
· 10 Vpp into 50 Ω
· RS-232 and GPIB interfaces (opt.)
The DS335 is a simple, low-cost, 3 MHz function generator
designed for general benchtop or ATE applications. Based
on a Direct Digital Synthesis (DDS) architecture, the DS335
includes features not normally found in function generators in
this price range.
Basic functions include sine waves and square waves (up
to 3.1 MHz), and ramps and triangles (up to 10 kHz). 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 unidirectional
and bidirectional sweeps can be selected.
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.
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 Ω load, or 20 Vpp into a high-impedance load.
· DS335 ... $1095 (U.S. list)
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.
Stanford Research Systemstt ttt
phone: (408)744-9040
www.thinkSRS.com