SFG-2120数字合成信号源SFG-2120|固纬SFG-2120数字合成信号 SFG-2120数字合成信号源SFG-2120|固纬SFG-2120数...

·  直接?位合成技?及fpga晶片??

·  ?率范?:0.1hz~20mhz

·  ?率解析度:100mhz

·  ?率准确度及?移度:+/-20ppm

·  低失真正弦波:-55dbc,0.1hz~200khz

·  ?出波形:正弦波、方波、三角波

·  具ttl及cmos out

·  前面板可?定十??存及呼叫操作??

·  ?附六位?150mhz高解析度?率?

·  具am/fm??及 lin/log ?描功能

based on direct digital synthesized (dds) technology and unique fpga design, sfg-2000/2100 series function generators are built with exceptionally high performance far exceeding that of any conventional function generators, at a very competitive price. stable output frequency, low distortion, and fine frequency resolution are the most remarkable characteristics of this product series.

main

frequency range
(for sine, square)

1hz~20mhz

frequency range
(for triangle)

1hz~1mhz

frequency resolution

1hz

frequency stability

∮ 20 ppm

frequency accuracy

∮ 20 ppm

frequency aging

∮ 5 ppm / year

output function

sine, square, triangle

amplitude range

2mv~10vpp(into 50load)

impedance

50∮10

attenuator

-20db∮1db⊙2

dc offset

?-5v°?+5v(into 50load)

duty control range

20% to 80%, 2hz~1mhz (square wave only)

range resolution

1%

display

9 digits led display

sine wave

harmonics distortion

-55dbc,0.1hz°200khz; -40dbc,0.2mhz°4mhz; -30dbc,4mhz°10mhz
(specification applied to both ttl/cmos off and from max. to 1/10 level)

flatness (relative to 1khz)

?∮ 0.3db,0.1hz°1mhz; ?∮ 0.5db,1mhz°4mhz; ?∮ 2db, 4mhz°10mhz

triangle wave

linearity

≠98,0.1hz°100khz;≠95,100khz°1mhz

square wave

symmetry

∮ 1% of period +4ns to 0.1hz°100khz

rise or fall time

?25ns at maximum output.(into 50load)

cmos output

level

4vpp∮1vpp°15vpp∮1vpp adjustable; rise or fall time ?120ns

ttl output

level

≠3vpp ; fan out; 20 ttl load ; rise or fall time ?25ns

sweep operation

rate

100:1 ratio max. and adjustable
( in order to get maximum sweep span, the sweep time needs to be tuned on when adjust sweep span. )

time

1sec°30sec adjustable
( when the sweep time is too long, the stop frequency will reach and stay at the maximum frequency of instrument until the end of the sweep cycle. )

mode

lin./log. switch se-lector

amplitude modulation

depth & modulation frequency

0°100 ; 400hz(int), dc°1mhz(ext)

carrier bw

100hz°5mhz(-3db)

ext modulation sensitivity

? 10vpp for 100modulation

frequency modulation

deviation & modulation frequency

0°∮50khz,center at 1mhz, 400hz fixed(int), 1khz fixed(ext)

ext modulation sensitivity

? 10vpp for 10% modulation (center at 1mhz)

frequency counter

range

5hz°150mhz

accuracy

time base accuracy∮1count

time base

∮20ppm(23∮5)after 30 minutes warm up

resolution

the maximum resolution is 100nhz for 1hz and 0.1hz for 100mhz

input impedance

1m/150pf

sensitivity

? 35mvrms (5hz~100mhz)
? 45mvrms (100mhz~150mhz)

store/recall function

10 groups of setting memories

power source

ac115v∮10%, ac 230v+10%/-15%, 50/60hz

accessories

instruction manual⊙1
power cord x 1
gtl-101⊙ 2

dimension & weight

266(w)⊙107(h)⊙293(d) mm
approx. 3.2kg