| 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 adequately 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(For Sine, Square)
 | 0.1Hz~3MHz | 
 
 | Frequency 
 Range(For Triangle)
 | 0.1Hz~1MHz | 
 
 |   | 0.1Hz 
 Maximum | 
 
 | Frequency 
 Stability | ∮ 20 ppm | 
 
 | Frequency 
 Accuracy | ∮ 20 ppm 
  | 
 
 | Frequency 
 Aging  | ∮ 5 ppm / 
 year | 
 
 | Amplitude 
 Range | 10Vp-p 
 (into 50?load) | 
 
 |   | ∮20% at 
 maximum position | 
 
 | Impedance | 50?∮10? | 
 
 | Attenuator | -40dB∮1dB⊙1 | 
 
 | DC 
 Offset | ≌-5V°≈+5V(into 
 50?load)  | 
 
 | 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 its 
 1/10 of any combination setting, TTL OFF
 -55dBc, 0.1Hz ~ 
 200kHz
 -40dBc, 0.2MHz ~ 2MHz
 -35dBc, 2MHz ~ 3MHz
 | 
 
 | Flatness 
 (at maximum amplitude relative to 1kHz)
 | ≌∮0.3dB, 
 0.1Hz ~ 1MHz≌∮0.5dB, 
 1MHz ~ 2MHz
 ≌∮ 1dB, 
 2MHz ~ 3MHz
 | 
 
 | TRIANGLE 
 WAVE | 
 
 | Linear | ≠98?,0.1Hz°100kHz;≠95?,100kHz°1MHz 
  | 
 
 | PSQUARE 
 WAVE | 
 
 | Symmetry | 5% of 
 period +4ns to 0.1Hz°100kHz  | 
 
 | Rise or 
 Fall Time | ∝100ns at 
 maximum output. (into 50?load) | 
 
 | TTL 
 OUTPUT | 
 
 | Level | ≠3Vpp | 
 
 | Fan 
 Out | 20 TTL 
 load | 
 
 | Rise or 
 Fall Time | ∝25ns | 
 
 | General | 
 
 | Operation 
 Environment | Indoor 
 use, altitude up ~ 2000mAmbient Temperature 0? ~ 40?
 Relative 
 Humidity: Up to 80% at 0~ 40?
 Up to 70% at 35? ~ 40?
 Installation 
 category II
 Pollution Degree 2
 | 
 
 | POWER 
 SOURCE | 
 
 |   | AC 
 240V/220V/110V∮10%, 
 50/60Hz  | 
 
 | STORAGE 
 CONDITION | 
 
 | Temperature 
  | -10? ~ 
 70? | 
 
 | Humidity | 70% 
 (Maximum) | 
 
 | ACCESSORIES 
  | 
 
 |   | User 
 manual ⊙ 
 1Power Cord x 1
 GTL-101⊙ 
 1
 | 
 
 | DIMENSION 
 & WEIGHT | 251(W)⊙91(H)⊙291(D) 
 mmApprox. 2.1kg
 |