B&K Precision 4014B Datasheet

Data Sheet

DDS Sweep Function Generators

Models 4014B and 4040B

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

Technical data subject to change
© B&K Precision Corp. 2013

www.bkprecision.com

DDS Function Generators

odels 4014B and 4040B

M

Front panel

Color LCD display Numeric keypad

Menu function keys

Rear panel

Dedicated

waveform keys

Lin/Log sweep key Modulation

key

Utility

key

Sync output

Rotary
control knob

Output
On/Off button

Main output

Intuitive user interface

Easily change all waveform parameters using the
intuitive menu-driven front panel keypad, rotary
control knob, and large color LCD display that
shows a preview of the output waveform.
Convenient waveform and range selection buttons
let users make quick and precise adjustments to
the output signal.

Versatile tools

Both models provide AM and FM modulation
along with linear/logarithmic sweep and built-in
counter capabilities. Internal and external sources
can be used for triggering and modulating the
signal.

Trigger/counter input connector

Modulation input connector

2

USB interface

Easy PC connectivity

The function generators can be programmed
remotely via the USB (virtual COM) interface
using SCPI commands. B&K Precision also offers
application software (available for download at
www.bkprecision.com) that provides virtual front
panel emulation, allowing users to remotely
control their instrument without the need for
programming.

www.bkprecision.com