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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 ~ 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

POWER SOURCE

AC 240V/220V/110V∮10%, 50/60Hz

STORAGE CONDITION

Temperature

-10? ~ 70?

Humidity

70% (Maximum)

ACCESSORIES

User manual ⊙ 1
Power Cord x 1
GTL-101⊙ 1

DIMENSION & WEIGHT

251(W)⊙91(H)⊙291(D) mm
Approx. 2.1kg