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BK Precision’s 4047B 20 MHz Dual Channel Function Arbitrary Generator delivers stable and accurate sine, square, triangle, pulse and arbitrary waveforms. The 4047B’s channel 1 and channel 2 outputs are fully independent, feature individual on/off buttons and can both be varied from 0-10 Vpp into 50 ohms (up to 20 Vpp into open circuit). More still, the 4047B supplies linear and logarithmic sweep abilities, AM/FM/PM/FSK/PWM modulation, and a constant variable DC offset to inject signals directly into circuits at the correct bias level. Separate output amplitude and DC offset amplifiers allow for a large DC offset (e.g. ± 4.99 V) with a small amplitude output signal (e.g. 10 mV).
Channels | 2 |
Frequency Characteristics | |
Sine | 0.01 Hz - 20 MHz |
Square | 0.01 Hz - 20 MHz |
Triangle | 0.01 Hz - 2 MHz |
Pulse | 0.01 Hz - 20 MHz |
Resolution | up to 8 digits |
Accuracy | 0.001% (10 ppm) at < 500 Hz: 0.001% + 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 20 MHz |
Offset Range | -4.99 V to 4.99 V (into 50 Ω) |
Offset Resolution | 10 mV, 3 digits |
Offset Accuracy | ± 2% ± 10 mV (into 50 Ω) |
Output Impedance | 50 Ω ± 2% |
Output Protection | Protected against short circuit or accidental voltage practically available in electronic laboratories, applied to the main output connector |
Waveform Characteristics | |
Harmonic Distortion (3 Vp-p into 50 Ω) | 0 - 1 MHz, < -60 dBc 1 MHz - 5 MHz, <-50 dBc 5 MHz - 12 MHz, <-45 dBc 12 MHz - 20 MHz, < 50 dBc |
Rise/Fall Time (square, pulse) | ≤ 20 ns (10% to 90% at full amplitude into 50 Ω) |
Variable Duty Cycle/Symmetry | Square: 20% - 80% to 2 MHz Triangle: 1% - 99% in 1% steps, up to 200 kHz |
Symmetry Accuracy at 50% | ± 1% |
Pulse Width (period 100 s - 50 ns) | 10 ns to <(Period - 10 ns), 10 ns resolution |
Variable Edge Time | 100 ns to Width/0.625 (50 % duty cycle) 10 ns resolution |
Jitter (square, pulse) | < 50 ps rms (cycle-to-cycle, typical) |
Arbitrary Waveform Characteristics | |
Sampling Rate | 8 ns to 100 s |
Vertical Resolution | 14 bits |
Accuracy | 0.001% |
Resolution | 4 digits |
Waveform Length | 2 to 16,382 points |
Jitter | < 50 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 (AM) | Carrier | Sine, Square, or Triangle | |
Source | Internal, External | ||
Internal Modulation | 0.1 Hz - 20 kHz | ||
Depth | 0% to 100% | ||
Frequency Modulation (FM) | Carrier | Sine, Square, or Triangle | |
Source | Internal, External | ||
Internal Modulation | 0.1 Hz - 20 kHz | ||
Deviation | 1 µHz to max frequency/2 | ||
Frequency Shift Keying (FSK) | Carrier | Sine, Square, or Triangle | |
Source | Internal, External | ||
Rate | ≤ 100 kHz | ||
Phase Modulation (PM) | Carrier | Sine, Square, or Triangle | |
Source | Internal, External | ||
Internal Modulation | 0.01 Hz - 20 kHz | ||
Deviation | 0 - 360 °,0.1 ° resolution | ||
Pulse Width Modulation (PWM) | Source | Internal, External | |
Width | 1% to 99% | ||
Internal Modulation | 0.01 Hz - 100 kHz | ||
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 Minimum width > 50 ns Input impedance 1 kΩ | ||
Sync OUT | TTL pulse at programmed frequency; 50 Ω source impedance | ||
Modulation IN | 5 Vp-p for 100% modulation 10 kΩ input impedance DC to > 20 kHz minimum bandwidth | ||
Counter Characteristics | |||
Range | 50 Hz to 50 MHz | ||
Resolution | Auto ranging, up to 8 digits | ||
Accuracy | ± 0.02% ± 2 digits | ||
Sensitivity | 25 mVrms typical | ||
General | |||
Memory Storage | 20 instrument settings | ||
Arbitrary Memory | 16,382 points in flash memory | ||
Power Requirements | 100 V - 240 V AC ± 10%, 47-63 Hz | ||
Max. Power Consumption | < 30 VA | ||
Operating Temperature | 32 °F to 122 °F (0 °C to 50 °C) | ||
Storage Temperature | 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) | ||
Safety and EMC Standards | EN55011 for radiated and conducted emissions EN55082, EN61010, CE approved | ||
Three-YearWarranty | |||
Included Accessories | Power cord, USB (type A to B) interface cable, certificate of calibration | ||
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.
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