Instruction Manual
11 
6  Specifications 
4005DDS 
Frequency Characteristics 
Waveforms 
Sine, Square, Triangle 
Range 
1 Hz to 5 MHz 
Resolution 
4 digits or 1 Hz 
Accuracy 
0.02% (200 ppm)* 
Frequency Stability 
Output will change less than 1 ppm within a 15 minute 
interval and less than 2 ppm within a 24 hour interval. 
Output Characteristics 
Impedance 
50 Ω ± 2% 
Amplitude Range 
Variable control from 20 mVpp to 20 Vpp (open circuit); 
10 mVpp to 10 Vpp (into 50 Ω) 
Attenuation 
-20 dB ± 2%, -40 dB ± 2% 
DC Offset 
Variable ±10 V (open circuit); ±5 V (into 50 Ω) 
Duty Cycle 
Adjustable 20% - 80% to 3 MHz for square 
Sine Wave 
Harmonic Distortion 
-50 dBc, DC to 20 kHz 
-30 dBc, 20 kHz to 5 MHz 
Flatness 
± 0.3 dB to 1 MHz, ± 1 dB to 5 MHz 
Square Wave 
Symmetry 
± 2% to 100 kHz, ± 5% to 5 MHz 
Rise Time 
≤ 35 ns 
Triangle Wave 
Linearity 
≥ 98% to 100 kHz, ≥ 95% to 5MHz 










