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sfg-2107數(shù)字函數(shù)信號發(fā)生器的技術(shù)參數(shù)：直接數(shù)位合成技術(shù)及fpga晶片設(shè)計 頻率范圍:0.1hz~7mhz 頻率解析度:100mhz 頻率準確度及飄移度:+/-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
main | |
| frequency range (for sine, square) | 0.1hz~7mhz |
| 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 50load) |
| 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 50load) |
| 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 50load) |
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 100modulation |
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⊙1 power cord x 1 gtl-101⊙2 | |
| dimension & weight | 107(w)⊙266(h)⊙293(d) m/m approx. 3.2kg |
