Description
DDS Sweep Function Generators from B&K Precision.
The BK4007B and BK4013B are versatile DDS (direct digital synthesis) sweep function generators with high signal precision and stability. These instruments generate sine and square waveforms up to 7 MHz or 12 MHz, including triangle waveforms up to 1 MHz. Both models provide variable output voltages from 0 to 10 Vpp into 50 ohms or up to 20 Vpp into open circuit. A continuously variable DC offset allows the output to be injected directly into circuits at the correct bias level.
Easily change all waveform parameters using the intuitive menu-driven front panel keypad, control knob, and easy-to-read LCD. Convenient waveform and range selection buttons let users make quick and precise adjustments.

Product Features
- Sine and square waveforms up to 12 MHz
- Bright easy-to-read display
- Linear and logarithmic sweep
- Variable DC offset
- Adjustable duty cycle (square)
- Store and recall up to 9 instrument settings
- Output On/Off button
- Overvoltage, overcurrent, and short circuit protection on main output
| |
BK4007B
|
BK4013B
|
Frequency Characteristics
|
| Sine |
0.1 Hz to 7 MHz |
0.1 Hz to 12 MHz |
| Square |
0.1 Hz to 7 MHz |
0.1 Hz to 12 MHz |
| Triangle |
0.1 Hz to 1 MHz |
| Resolution |
5 digits or 100 mHz |
| Accuracy |
0.01% ± 0.186 Hz |
Output Characteristics
|
| Amplitude Range |
20 mVpp to 20 Vpp (open circuit);
10 mVpp to 10 Vpp (into 50 Ω) |
| Amplitude Resolution |
3 digits (1,000 counts) |
| Amplitude Accuracy |
± 2 % ± 20 mV of programmed output from 1.01 V – 10 V |
| Flatness |
± 1 dB to 7 MHz |
± 1 dB to 12 MHz |
| DC Offset Range |
-4.5 V to 4.5 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 overvoltage practically available in electronic laboratories, applied to the main output connector |
Waveform Characteristics
|
Harmonic Distortion
(at 10 Vp-p into 50 Ω) |
DC - 100 kHz, -55 dBc
100 kHz - 1 MHz, < -45 dBc
1 MHz – 7 MHz, <-30 dBc |
DC - 100 kHz, -55 dBc
100 kHz - 1 MHz, < -45 dBc
1 MHz – 12 MHz, <-30 dBc |
| Square Rise / Fall Time |
≤ 20 ns (10% to 90% at full amplitude into 50 Ω) |
| Duty Cycle |
Adjustable 20% - 80% up to 1 MHz for square |
| Symmetry Accuracy at 50% |
± 1% |
Sweep Characteristics
|
| Sweep Shape |
Linear or Logarithmic, up or down |
| Sweep Time |
20 ms to 100 s |
Input and Output
|
| Sync Out |
TTL pulse at programmed frequency; 50 Ω source impedance |
General
|
| Memory Storage |
9 instrument settings |
| Power Requirements |
100 V – 240 V AC ± 10% |
| Operating Temperature |
0 °C to 50 °C |
| Storage Temperature |
-10 °C to 70 °C |
| Humidity |
95% R.H. 0 °C to 30 °C |
| Dimensions W x H X D |
213 x 88 x 210 mm |
| Weight |
2 Kg |
| Electromagnetic Compatibility |
Meets EMC Directive 2004/108/EC, EN55011, EN55082 |
| Safety |
Meets Low Voltage Directive 2006/95/EC, EN61010 |
| Warranty |
3 years |
| Included Accessories |
Power cord, certificate of calibration |
*Depending on the amplitude setting
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.