4014B BK | Alldatasheet
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DDS Sweep Function Generators Models 4014B and 4040B Data Sheet www.bkprecision.comTechnical data subject to change © B&K Precision Corp. 2018 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 I Sine and square waveforms up to
12 MHz (4014B) or 20 MHz (4040B)
I Triangle/ramp waveforms up to
1 MHz (4014B) or 2 MHz (4040B)
I Bright color display with waveform preview I Linear and logarithmic sweep I AM/FM modulation I Independent output and DC offset amplifiers allow for small amplitude output signals with large DC offsets I Low-jitter square wave generation I Adjustable duty cycle I Output ON/OFF button I Internal/external triggering I Gate and burst mode (4040B only) I Built-in counter I USB interface I SCPI-compliant command set I 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
w w w .bkprecision.com D D S Function G enerators M odels 4014B and 4040B O utput O n/O ff button M ain output U SB interface M odulation input connector Trigger/counter input connector Rotary control knob C olor LC D display N um eric keypad D edicated waveform keys Lin/Log sweep key M odulation key U tility key Sync output Easily change all waveform param eters using the intuitive m enu-driven front panel keypad, rotary control knob, and large color LC D display that shows a preview of the output waveform . C onvenient waveform and range selection buttons let users m ake quick and precise adjustm ents to the output signal. Front panel Rear panel M enu function keys Intuitive user interface Versatile tools Easy PC connectivity The function generators can be program m ed rem otely via the U SB (virtual C O M ) interface using SC PI com m ands. B &K Precision also offers application software (available for download at www.bkprecision.com ) that provides virtual front panel em ulation, allowing users to rem otely control their instrum ent without the need for program m ing. B oth m odels provide A M and FM m odulation along with linear/logarithm ic sweep and built-in counter capabilities. Internal and external sources can be used for triggering and m odulating the signal.
www.bkprecision.com DDS Function Generators Models 4014B and 4040B * For square wave, resolution is up to 4 digits when frequency is > 20 kHz. Note: All specifications apply to the unit after a temperature stabilization time of 15 minutes over an ambient temperature range of 23 ºC ± 5 ºC. Specifications are subject to change without notice. v082218 Specifications 4014B 4040B Frequency Characteristics Sine 0.01 Hz to 12 MHz 0.01 Hz to 20 MHz Square 0.01 Hz to 12 MHz 0.01 Hz to 20 MHz Triangle 0.01 Hz to 1 MHz 0.01 Hz to 2 MHz Resolution 6 digits* or 10 mHz Accuracy 0.01% ± 0.006 Hz Output Characteristics Amplitude Range 10 mVpp to 10 Vpp (into 50 Ω); 20 mVpp to 20 Vpp (open circuit) Amplitude Resolution 3 digits (1,000 counts) Amplitude Accuracy ± 2% ± 20 mV of programmed output from 1.01 V – 10 V Flatness ± 0.5 dB to 1 MHz ± 1 dB to 12 MHz ± 0.5 dB to 1 MHz ± 1 dB to 20 MHz DC Offset Range -4.99 V to 4.99 V (into 50 Ω) DC Offset Resolution 10 mV , 3 digits DC Offset Accuracy ± 2% ± 10 mV (into 50 Ω) Output Impedance 50 Ω ± 2% Output Protection Protected against short circuit or accidental voltage applied to the main output connector Waveform Characteristics Harmonic Distortion (for sine wave at
5 Vp-p into 50 Ω)
0 – 1 MHz, < -60 dBc
1 MHz – 5 MHz, <-50 dBc
5 MHz – 12 MHz, <-45 dBc
0 – 1 MHz, < -60 dBc
12 MHz – 20 MHz, <-50 dBc
Square Rise/Fall Time ≤ 20 ns (10% to 90% at full amplitude into 50 Ω) Duty Cycle Square: 20% - 80% to 2 MHz Triangle: 1% - 99% in 1% steps, up to 200 kHz Symmetry Accuracy at 50% ± 1% Jitter (square) < 100 ps rms (cycle-to-cycle, typical) Operating Modes Continuous Output continuous at programmed parameters Triggered Output quiescent until triggered by an internal or external trigger, at which time one waveform cycle is generated to programmed parameters. Frequency of waveform cycle is limited to 1 MHz. Gate - Same as triggered mode, except waveform is executed for the duration of the gate signal. The last cycle started is completed. Burst - 2-65535 cycles Trigger Source Trigger source may be internal, external, or manual. Internal trigger rate 0.1 Hz – 1 MHz (1 us – 10 s) Modulation Characteristics Amplitude Modulation Internal 0.1 Hz – 20 kHz sine only0.1 Hz – 20 kHz sine, square, or triangle waveform External 5 Vp-p for 100% modulation, 10 kΩ input impedance Frequency Modulation Internal 0.1 Hz – 20 kHz sine only0.1 Hz – 20 kHz sine, square, or triangle waveform External 5 Vp-p for 100% modulation, 10 kΩ input impedance Sweep Characteristics Sweep Shape Linear or Logarithmic, up or down Sweep Time 10 ms to 100 s Input and Output Trigger IN TTL compatible Maximum rate 1 MHz Input impedance 1 kΩ Minimum width > 50 ns Sync OUT TTL pulse at programmed frequency; 50 Ω source impedance Modulation IN
5 Vp-p for 100% modulation
10 kΩinput impedance DC to > 20 kHz minimum bandwidth Counter Characteristics Range 50 Hz to 25 MHz Resolution Auto ranging, up to 8 digits Accuracy ± 0.02% ± 2 digits Sensitivity 100 mVrms typical General Memory Storage 10 instrument settings 20 instrument settings Power Requirements 100 V – 240 V AC ± 10% Operating T emperature 32 °F to 122 °F (0 °C to 50 °C) Storage T emperature 14 °F to 158 °F (-10 °C to 70 °C) Humidity 95% R.H. 0 °C to 30 °C Dimensions (W x H x D) 8.39” x 3.46” x 8.27” (213 x 88 x 210 mm) Weight 5.5 lbs (2.5 kg) Electromagnetic Compatibility Meets EMC Directive 2004/108/EC, EN55011, EN55082 Safety Meets Low Voltage Directive 2006/95/EC, EN61010 Three-Year Warranty Included Accessories Power cord, USB (type A to B) interface cable, certificate of calibration