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音頻系統(tǒng)分析儀 las-5500

audio system analyzer 

廠家:日本利達(dá)
簡(jiǎn)介:

specifications
audio oscillator
frequency range:10hz-1mhz in 5 decade ranges
calibration accuracy:±5% below 100hz
                     ±3% above 100hz
output waveform:since wave
output voltage:>3v rms into 600ω
distortion:<0.05%:500hz-20khz
           <0.1%:100hz-100khz
           <0.5:50hz-500khz
           <1%:10hz-1mhz
output leveling:within±0.3db（600ω load）
output impedance:600ω
output control:direct,or through attenuator

attenuator

input/output impedance:600ω;unbalanced
attenuation range:0-101db in 0.1db steps
accuracy:±2%
frequency response:±2% to -70db:dc-200khz
                   ±2% to -101db:dc-100khz
maximum input:0.5w maximum（17vrms or +27dbm）
output load resistor:600ω（switchable,in or out）

ac millivoltmeter

voltage range:30μv-100vrms in 12 ranges
              0.3,1,3,10,30,100mvrms
              0.3,1,3,10,30,100vrms
decibel ranges:-90 to +42db（0db=0.775v）
               -90 to +40db（0db=1v）
accuracy:±3% of full scale,ref"d to 1khz
frequency response:±10%:5hz-500khz
                   ±5%:10hz-200khz
                   ±3%:20hz-100khz
input impedance:10mω/<65pf,at each range.
weighted filter:according to jis"a"curve（same as nab）;switchable,in or out
input connections:uhf-type and pin jacks for left and right,switch se-lectable
measuring modes:direct,attenuator output,and w & f （wow flutter）

oscilloscope

display area:8×10div（1div=6mm）
vertical amplifier
sensitivity:10mv/div
input control:4 steps:×1,×10,×100,×1000;continuous fine adjuster,10mv-100v/div

bandwidth,-3db  dc,or 2hz,to 5mhz

rise time:70ns

input impedance:1mω/40pf

input connector:uhf type（so-239）

maximum input voltage:600v（dc+ac peak）

horizontal amplifier

sensitivity:approx.200mv/div

input control:200mv to 10v/div coverage

bandwidth,-3db:dc to 250khz

input impedance:100kω

maximum input voltage:100v（dc+ac peak）

time base

sweep frequency:10hz-100khz in 4 ranges,continuous fine adjuster

synchronization:internal;+polarity only

wow flutter meter

measuring frequencies:jis,ccir:3khz±10%

                      din:3.15khz±10%

input voltage range:15mv-10vrms（automatic leveling）

input impedance:>300kω

drift measurements

measuring range:±5%

accuracy:within±5% of full scale

wow flutter measurements

test ranges:5 ranges:0.03%,0.1%,0.3%,1%,3%,at full scale;accuracy,±5% of full scale

frequency response（within-3db±1db）

jis:0.5-200hz

ccir:0.3-200hz

din:0.3-300hz

weighted characteristic:applicable to jis,ccir and din standards

indication

jis:effective vallue;95% of input（ref"d to ）within 3.5±1sec

ccir/din:peak value in accordance with relevant standards

indicating method:use of% scales of ac millivoltmeter

test frequency source:3khz±0.03%;output 0.3vrms

                      output impedance,approx.5kω

                      distortion,<2%

to scope terminal

output voltage:1vrms±5%（jis）

               0.7vrms ±5%（din,ccir）

output impedance:2kω±20%