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

Frequency Resolution

0.1Hz Maximum

Frequency Stability

∮ 20 ppm

Frequency Accuracy

∮ 20 ppm

Frequency Aging

∮ 5 ppm / year

Amplitude Range

10Vp-p (into 50load)

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)

Disy

6-digit LED disy

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

SQUARE 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 ~ 2000m
Ambient Temperature 0 ~ 40
Relative Humidity: Up to 80% at 0 ~ 40
Up to 70% at 35 ~ 40
Installation category II
Pollution Degree 2