User manual

34
Signal Generators
25 MHz & 50 MHz Arbitrary Waveform/
Function Generators
The 407x generators combine a full-featured
DDS function generator with an arbitrary
waveform generator (AWG). This gives the
user uncommon flexibility to generate any
waveform that can be described by a sampled
set of data within the generator's capabilities.
AWGs have revolutionized the generation of
stimulus signals by greatly reducing the need
to build special circuitry to generate custom
signals. This reduces costs enormously
because multiple design/build/debug steps
are avoided. Now, a user can write software
to generate the needed waveform shapes or
use the simple tools to graphically construct
special waveforms. With today's accelerated
development schedules, can you afford not to
take advantage of this powerful, enabling
technology?
Common Features & Benefits
■ High performance and cost
effectiveness in a compact package
■ Standard function generator
capabilities (sine, square, triangle
waves) with DDS accuracy and
precision. Also included are noise,
sync, and exponential waveforms
■ Frequencies from 1 µHz (sine and
square), and amplitudes from 10 mVpp
to 10 Vpp into 50 Ω
■ Up to four million points (4076, 4079)
or four-hundred thousand points of
AWG memory -- the largest waveform
memories for instruments in their
class. The memory is not partitioned --
use it all to store one waveform or
many waveforms at different locations
Common Features & Benefits
■ Sweep, gated, burst, and modulation
(AM/FM/FSK) capabilities standard
■ AWG provides built-in pulse, ramp,
triangle, noise, sinc, exponential, and
Gaussian noise waveforms. You can
utilize these waveforms to build your
own arbitrary waveform using the front
panel controls
■ Audio frequency sine waves have a
very low distortion level of -65 dBc
■ Versatile noise generation: In Arb mode
you can conveniently add noise to your
waveform directly from the front panel
and precisely adjust the scale of the
noise amplitude. Unlike other
generators that only produce a noise
waveform, this feature allows you to
choose between generating a noise
waveform or adding noise to an
existing waveform
■ RS232 and GPIB support
■ The units are easily programmable
with popular programming languages
using a SCPI syntax
Model 4078
Specifications 4075 4078 4076 4079
Number of channels 1 2 1 2
Frequency (sine) 1 uHz - 25 MHz 1 uHz - 50 MHz
Flatness ±0.2 db @ 1 MHz, ±1 db @ 25 MHz ±0.1 db @ 10 MHz, ±1 db @ 50 MHz
Sample rate 100 MS/s 125 MS/s
Waveform length (points) 2 to 400,000 2 to 4,000,000
Vertical resolution 14 bit
Computer interface RS232 standard, GPIB optional RS232 and GPIB standard
Weight 6.6 lbs (3 kg) 5.5 lbs (2.5 kg)
Dimensions (W x H x D) 8.4” x 3.5” x 12” (213 x 88 x 300 mm) 8.4” x 3.5” x 11.8” (213 x 88 x 300 mm)
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