4mhz Dds Function Generator

4MHz DDS Function Generator
Based on the Direct Digital Synthesized (DDS) technology and unique
FPGA design, the SFG-2004 is a 4MHz Function Generator designed for
performance and value. Stable output frequency, low distortion, and
fine frequency resolution are the most remarkable characteristics of
this product. With a 20ppm stability level and high output accuracy the
SFG-2004 is suitable for a wide range of applications such as reference
signals for Phase locked loops and calibration procedures.FEATURES



DDS Technology and FPGA Chip DesignFrequency Range: 0.1Hz~4MHzHigh Frequency Accuracy: 20ppmHigh Frequency Stability: 20ppmFrequency Resolution: 100mHzLow Distortion Sine Wave: -55dBc,0.1Hz~200kHzFront Panel Setting Save/Recall with 10 Groups of Setting Memories









SPECIFICATIONS








MAIN




Frequency Range(For Sine, Square)


0.1Hz~4MHz




Frequency Range(For Triangle)


0.1Hz~1MHz




Frequency Resolution


0.1Hz





Frequency Stability


20 ppm




Frequency Accuracy


20 ppm





Frequency Aging



5 ppm / year




Output Function


Sine, Square, Triangle




Amplitude Range


2mV~10Vpp(into 50 load)




Impedance


5010%





Attenuator


-20dB1dBx2





DC Offset


< -5V~ >+5V(into 50 load)





Duty Control Range



20% to 80%, 2Hz~1MHz (Square wave only)





Duty Control Resolution



1%





Display


9 digits LED display





SINE WAVE




Harmonics Distortion


-55dBc, 0.1Hz~200kHz-40dBc, 0.2MHz~4MHz-30dBc,
4MHz~10MHz(Specification applied from MAX. to 1/10 level)




Flatness (Relative to 1kHz)


<0.3dB, 0.1Hz~1MHz<0.5dB,
1MHz~4MHz<2dB, 4MHz~10MHz




TRIANGLE WAVE




Linearity


98%, 0.1Hz~100kHz95%, 100kHz~1MHz





SQUARE WAVE




Symmetry


1% of period +4ns, 0.1Hz~100kHz




Rise or Fall Time


25ns at maximum output (into 50 load)




CMOS OUTPUT




Level


4Vpp1Vpp ~ 14.5Vpp0.5Vpp adjustableRise or
Fall Time 120ns




TTL OUTPUT




Level


3Vpp




Fan Out


20 TTL load




Rise/Fall Time


25ns




STORE/RECALL FUNCTION






10 groups of panel settings






POWER SOURCE









AC115V10%, 230V+10%/-15%, 50/60Hz





ACCESSORIES







User manual x 1Power cord x 1Test lead GTL-101 x 1





DIMENSION & WEIGHT









266(W)x266(H)x293(D) m/mApprox. 3.1kg