The SFG-1000 Series, an economic function generator with high accuracy and high stability output, are designed based on the DDS (Direct Digital Synthesized) technology embedded in a large scale FPGA. The 3MHz frequency range and the output waveform selection of Sine, Square, Triangle and TTL available in the SFG-1000 Series adequately provide the fundamental functions to ensure high confidence in 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 simple measurement applications.
Specifications
MAIN
Output Function Frequency Range(For Sine, Square) Frequency Range(For Triangle) Frequency Resolution Frequency Stability Frequency Accuracy Aging Amplitude Range Amplitude Accuracy Impedance Attenuator DC Offset Duty Control Range Display Output Control
Sine, Square, Triangle, TTL 0.1Hz ~ 3MHz
0.1Hz ~ 1MHz 0.1Hz maximum ±20ppm ±20ppm ±5ppm/year 10Vp-p (into 50Ω load) ±20% at maximum position (only SFG-1013) 50Ω±10% -40dB±1dB×1 <-5V ~ >5V (into 50Ω load) 25% ~ 75% below 1MHz (for square wave only) 6-digit LED display ON/OFF selector
SINE WAVE
Harmonics Distortion
Flatness (at maximum amplitude relative to 1kHz)
Maximum Amplitude attenuation to 1/10 of any panel settings, TTL OFF ≧-55dBc, 0.1Hz ~ 200kHz ≧-40dBc, 0.2MHz ~ 2MHz ≧-35dBc, 2MHz ~ 3MHz <±0.3dB, 0.1Hz ~ 1MHz <±0.5dB, 1MHz ~ 2MHz <±1dB, 2MHz ~ 3MHz
TRIANGLE WAVE
Linear
≧98%, 0.1Hz ~ 100kHz ; ≧95%, 100kHz ~ 1MHz
SQUARE WAVE
Symmetry Rise or Fall Time
5% of period+4ns, 0.1Hz ~ 100kHz ≦100ns at maximum output (into 50Ωload)
TTL OUTPUT
Level Fan Out Rise or Fall Time
≧3Vp-p 20 TTL load ≦25ns
GENERAL
Operation Environment
Indoor use, altitude <2000m Ambient Temperature : 0°C ~ 40°C Relative Humidity: <80% at 0°C ~ 40°C Up to 70% at 35°C ~ 40°C Installation category II Pollution Degree 2
POWER SOURCE
AC 100V/120V/220V/240V±10%, 50/60Hz
STORAGE CONDITION
Temperature Humidity
-10°C ~ 70°C 70% (Maximum).
DIMENSION & WEIGHT
251(W) x 91(H) x 291(D) mm, Approx. 2.1kg
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