| 
 Specifications  | 
 Model 4040DDS  | 
| 
 Frequency Characteristics (Standard Waveforms)  | 
| 
 Sine  | 
 0.1 Hz to 20 MHz  | 
| 
 Square  | 
 0.1 Hz to 20 MHz  | 
| 
 Triangle, Ramp  | 
 0.1 Hz to 2 MHz  | 
| 
 Accuracy  | 
 0.01% (100 ppm)  | 
| 
 Resolution  | 
 4 digits or 10 mHz  | 
| 
 Output Characteristics  | 
| 
 Amplitude Range  | 
 10 mV to 10 Vp-p into 50 Ω  | 
| 
 Resolution  | 
 3 digits (1000 counts)  | 
| 
 Amplitude Accuracy  | 
 ±2% ± 20 mV of the programmed output from 1.01 V - 10 V  | 
| 
 Flatness  | 
 0.5 dB at 1 MHz 1 dB to 20 MHz  | 
| 
 Offset Range  | 
 ±4.5 V into 50 Ω, depending on the Amplitude setting  | 
| 
 Offset Resolution  | 
 10 mV with 3 digits resolution  | 
| 
 Offset Accuracy  | 
 ±2% ± 10 mV into 50 Ω  | 
| 
 Output Impedance  | 
 50 Ω  | 
| 
 Output Protection  | 
 The instrument output is protected against short circuit or accidental voltage practically available in electronic laboratories, applied to the main output connector  | 
| 
 Waveform Characteristics  | 
| 
 Harmonic Distortion  | 
 0 - 20 kHz, -50 dBc 20 kHz - 100 kHz, -45 dBc 100 kHz - 1 MHz, -40 dBc 1 MHz - 20 MHz, -30 dBc  | 
| 
 Spurious  | 
 DC - 1 MHz, < -55 dBc  | 
| 
 Square Rise/Fall Time  | 
 < 20 ns (10% to 90%) at full amplitude into 50 Ω  | 
| 
 Variable Duty Cycle  | 
 20% to 80% to 2 MHz for Square and 10% - 90% for Triangle  | 
| 
 Symmetry at 50%  | 
 < 1%  | 
| 
 Operating Modes  | 
| 
 Continuous  | 
 Output continuous at programmed parameters.  | 
| 
 Triggered  | 
 Output quiescent until triggered by an internal or external trigger, then one waveform cycle is generated to programmed parameters, up to 2 MHz  | 
| 
 Gate  | 
 Same as triggered mode, except waveform is executed for the duration of the gate signal. The last cycle started is completed.  | 
| 
 Trigger Source  | 
 Trigger source may be internal, external or manual. Internal trigger rate 10 µs to 10 s.  | 
| 
 Modulation Characteristics  | 
| 
 Amplitude Modulation  | 
| 
    | 
 Internal  | 
 Sine signal of 1000 Hz Variable modulation from 0% to 100% in 1% steps  | 
| 
 External  | 
 5 Vp-p for 100% modulation, 10 kΩ input impedance, DC to 20 kHz bandwidth.  | 
| 
 Frequency Modulation  | 
| 
    | 
 Internal  | 
 Sine signal of 1000 Hz  | 
| 
 External  | 
 5 Vp-p for 100% deviation, 10 kΩ input impedance, DC to 20 kHz bandwidth.  | 
| 
 Sweep Characteristics  | 
| 
 Sweep Shape  | 
 Linear and Logarithmic, up or down  | 
| 
 Sweep Time  | 
 10 ms to 50 s.  | 
| 
 Inputs and Outputs  | 
| 
 Trigger In  | 
 TTL compatible. Max. rate 2 MHz. Minimum width 50 ns.  | 
| 
 Sync Out  | 
 TTL pulse at programmed frequency, 50 Ω source impedance.  | 
| 
 Modulation In  | 
 5 Vp-p for 100% modulation. 10 kW input impedance. DC to > 20 kHz minimum bandwidth.  | 
| 
 General  | 
| 
 Dimensions  | 
 8.4'' (213 mm) wide 3.5'' (88 mm) high 8.3'' (210 mm) deep  | 
| 
 Weight  | 
 Approx 2.5 kg.  | 
| 
 Power  | 
 90 V - 264 V, 30 VA max  | 
| 
 Temperature  | 
| 
    | 
 Operating  | 
 0°C to +50°C  | 
| 
 Non-operating  | 
 -10°C to +70°C  | 
| 
 EMC  | 
 According to EN55011 for radiated and conducted emissions.  | 
| 
 Electrical Discharge Immunity  | 
 According to EN55082  | 
| 
 Safety Specifications  | 
 According to EN61010  | 
| 
 Note: Specifications are verified according to the performance check procedures in the technical manual.  
Specifications not verified in the manual are either explanatory notes or general performance characteristics only  |