B&K Precision 4084-4087 - Datasheet - Manual

B&K Precision ® models 4084, 4085, 4086 and
4087 are high performance laboratory grade
synthesized function generators with a wide
frequency range of up to 120 MHz. Direct
digital synthesis (DDS) techniques are used to
create stable, accurate output signals for all 27
built-in standard and complex (arbitrary) wave-
forms. The generators produce high purity, low
distortion sine waves, square waves up to 40
MHz and provide a stable output of very small
Versatile modulation and trigger
capabilities
The generators provide extensive modulation
capabilities including AM, FM, FSK, PSK, pulse
modulation and linear/logarithmic sweep.
Internal and external modulation sources, as well
as internal, external and gated trigger sources are
supported. Modulation parameters can be set
precisely and are adjustable over a wide range.
For instance burst count is programmable in 1
burst increments up to 10000 bursts and burst
phase is adjustable in 0.1º increments.
Convenient user interface and
operation
You can adjust parameters via knob or numeric
keypad. Enter amplitude values directly in Vpp,
mVpp, Vrms, mVrms or dBm and display the
correct voltage by entering the actual output
configuration used (terminated with 50 Ohm or
open circuit). You can enter frequency in terms
of frequency or seconds using time values s, ms,
Hz, kHz or MHz. Submenus are used for
modulation modes and other complex functions.
The generators are fully programmable via the
standard RS232 interface, using SCPI com-
mands. The instrument also provides 10 memo-
ries to store and recall instrument settings.
Additionally the current state is saved at power
off and can be restored at power up.
Programmable DDS Function Generator Series
Models 4084, 4085, 4086 & 4087
Data Sheet
w w w.bk prec ision.c om Technical data subject to change
© B&K Precision Corp. 2012
signals down to the 1mV - 10mV range. The
instrument also provides a built-in 100 MHz
universal counter with frequency measurement
and totalize function.
The versatility and capabilities of this series make
it an ideal tool for many general-purpose test
and bench applications or for use in training and
education.
Fig.1 Single cycle burst, start phase=0º