sfg-2104函數(shù)信號發(fā)生器的特點：

直接數(shù)位合成技術(shù)及fpga晶片設(shè)計

頻率范圍:0.1hz~4mhz

頻率解析度:100mhz

頻率準(zhǔn)確度及飄移度:+/-20ppm

低失真正弦波:-55dbc,0.1hz~200khz

輸出波形:正弦波、方波、三角波

具ttl及cmos out

前面板可設(shè)定十組儲存及呼叫操作記憶

內(nèi)附六位數(shù)150mhz高解析度頻率計

具am/fm調(diào)變及 lin/log 掃描功能

sfg-2104函數(shù)信號發(fā)生器的技術(shù)參數(shù)：

main
frequency range (for sine, square)	0.1hz~4mhz
frequency range (for triangle)	0.1hz~1mhz
frequency resolution	0.1hz
frequency stability	∮ 20 ppm
frequency accuracy	∮ 20 ppm
frequency aging	∮ 5 ppm / year
output function	sine, square, triangle
amplitude range	10vpp(into 50load)
flatness(sinewave relative to 1khz)	≌∮ 0.3db,0.1hz°1mhz; ≌∮ 0.5db,1mhz°4mhz; ≌∮ 2db, 4mhz°10mhz
impedance	50∮10
attenuator	-20db∮1db⊙2
dc offset	≌-5v°≈+5v(into 50load)
duty control range	20% to 80% below 1mhz (square wave only)
duty control resolution	1%
display	9 digits led display
sine wave
harmonics distortion	-55dbc,0.1hz°200khz; -40dbc,0.2mhz°4mhz; -30dbc,4mhz°10mhz (specification applied from max. to 1/10 level)
triangle wave
linear	≠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°14.5vpp∮0.5vpp adjustable; rise or fall time; ∝120ns
ttl output
level	≠3vpp ; fan out; 20 ttl load ; rise or fall time ; ∝25ns
sweep operation
sweep/rate	100:1 ratio max. and adjustable
sweep/time	0.5sec°30sec adjustable
sweep/mode	lin. / log. switch se-lector
amplitude modulation
depth & mod. frequency	0°100 ; 400hz(int),dc°1mhz(ext)
carrier bw	100hz°5mhz(-3db)
ext sensitivity	∝10vpp for 100modulation
frequency modulation
deviation & mod. frequency	0°∮5 ; 400hz(int),1khz(ext)
ext sensitivity	∝10vpp for 10 modulation
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, 230v∮15%, 50/60hz
accessories
	instruction manual x 1 power cord x 1 gtl-101 x 2
dimension & weight	107(w)⊙266(h)⊙293(d) m/m approx. 3.2kg