固緯SFG-1003數(shù)字合成信號源的特點：
DDS Technology and FPGA Chip Design
Frequency Range:0.1Hz~3MHz
High Frequency Accuracy : ∮ 20ppm
High Frequency Stability : ∮ 20ppm
Max. Frequency Resolution :100mHz
Low Distortion Sine Wave:-55dBc,0.1Hz~200kHz
固緯SFG-1003數(shù)字合成信號源的技術(shù)參數(shù)：
| SFG-1000 Series, an economic function generator with high accuracy and high stability output, is designed based on the DDS （Direct Digital Synthesized） technology embedded in a large scale FPGA. The frequency range of 3MHz and the output waveform selection of Sine, Square, Triangle and TTL of SFG-1000 Series adequay provide the fundamental features to ensure high confidence for the test results. The DDS technology at an affordable price gives a high value solution to the users who need a signal source for accurate but unsophisticated measurement applications. | |
| MAIN | |
| Output Function | Sine, Square, Triangle |
| Frequency Range | 0.1Hz~3MHz |
| Frequency Range | 0.1Hz~1MHz |
| Frequency Resolution | 0.1Hz Maximum |
| Frequency Stability | ∮ 20 ppm |
| Frequency Accuracy | ∮ 20 ppm |
| Frequency Aging | ∮ 5 ppm / year |
| Amplitude Range | 10Vp-p （into 50load） |
| Impedance | 50∮10 |
| Attenuator | -40dB∮1dB⊙1 |
| DC Offset | ?-5V°?+5V（into 50load） |
| Duty Control Range | 25% to 75% below 1MHz （Square wave only） |
| Display | 6-digit LED display |
| Output Control | ON/OFF selector |
| SINE WAVE | |
| Harmonics Distortion | From Amplitude control at maximum position without any attenuation to |
| Flatness | ?∮0.3dB, 0.1Hz ~ 1MHz |
| TRIANGLE WAVE | |
| Linear | ≠98,0.1Hz°100kHz;≠95,100kHz°1MHz |
| SQUARE WAVE | |
| Symmetry | 5% of period +4ns to 0.1Hz°100kHz |
| Rise or Fall Time | ?100ns at maximum output. （into 50load） |
| TTL OUTPUT | |
| Level | ≠3Vpp |
| Fan Out | 20 TTL load |
| Rise or Fall Time | ?25ns |
| General | |
| Operation Environment | Indoor use, altitude up ~ |
| POWER SOURCE | ? |
| ? | AC 240V/220V/110V∮10%, 50/60Hz |
| STORAGE CONDITION | |
| Temperature | -10 ~ 70 |
| Humidity | 70% （Maximum） |
| ACCESSORIES | |
| ? | User manual ⊙ 1 |
| DIMENSION & WEIGHT | 251（W）⊙91（H）⊙291（D） mm |
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