B&K Precision 4014B - Datasheet - Manual

DDS Sweep Function Generators
Models 4014B and 4040B
Data Sheet
www.bkprecision.com Technical data subject to change
© B&K Precision Corp. 2013
Models 4014B and 4040B are 12 MHz and
20 MHz DDS (direct digital synthesis) function
generators that generate stable and precise sine,
square, and triangle waveforms. Both models
provide variable output voltages from 0 to
10 Vpp into 50 Ω (up to 20 Vpp into open
circuit), linear and logarithmic sweep, AM/FM
modulation, built-in counter, and a continuously
variable DC offset that allows the output to be
injected directly into circuits at the correct bias
level. Separate output amplitude and DC offset
amplifiers let you set a large DC offset (e.g.
± 4.99 V ) with a small amplitude output signal
(e.g. 10 mV), a feature typically found in more
expensive generators.
The 4014B and 4040B are both designed
with a dual technology architecture, combining
traditional DDS technology with a low-jitter
square wave generator. The instruments
generate a 2-point waveform to simulate the
amplitude and use a high accuracy PLL
(phase-locked loop) circuit for timing. Compared
to signals generated by typical low-cost DDS
function and arbitrary waveform generators, this
implementation significantly minimizes jitter and
improves edge stability of square waves. The
improved signal integrity allows these generators
to be used for simulating reliable clock signals,
generating triggers, or validating serial data
buses.
These models are suitable for education and
other applications that require digital function
generators with sweep and modulation
capabilities.
Features & Benefits
■ Sine and square waveforms up to
12 MHz (4014B) or 20 MHz (4040B)
■ Triangle/ramp waveforms up to
1 MHz (4014B) or 2 MHz (4040B)
■ Bright color display with waveform preview
■ Linear and logarithmic sweep
■ AM/FM modulation
■ Independent output and DC offset amplifiers
allow for small amplitude output signals with
large DC offsets
■ Low-jitter square wave generation
■ Adjustable duty cycle
■ Output ON/OFF button
■ Internal/external triggering
■ Gate and burst mode (4040B only)
■ Built-in counter
■ USB interface
■ SCPI-compliant command set
■ Short circuit and overvoltage protection on all
inputs and outputs
Model 4014B 4040B
Sine and square frequency range 0.01 Hz - 12 MHz 0.01 Hz - 20 MHz
Triangle/ramp frequency range 0.01 Hz - 1 MHz 0.01 Hz - 2 MHz