·  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

·  voltage display

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 se-lection 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)

amplitude accuracy

∮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 se-lector

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

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