标准立体声解码器 MSDC2 (STANDARD STERO DECODER)_中国教育装备采购网

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 标准立体声解码器 MSDC2 (STANDARD STERO DECODER)
  • 标准立体声解码器 MSDC2 (STANDARD STERO DECODER)
  • 标准立体声解码器 MSDC2 (STANDARD STERO DECODER)

    参考价格: ¥0.00
    产品型号:MSDC2
    所在地区:北京
    上架时间:2018年08月20日
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    详细说明

    标准立体声解码器 MSDC2 (STANDARD STERO DECODER)

    厂家: 德国罗德与施瓦茨   ROHDE&SCHWARZ

    stereo multiplex input(balanced or unbalanced,selected with shorting link)

    Frequency range: 30Hz-75KHz

    input impedance(balanced): ≥40KΩ

    Common-mode suppression:
     at f<150Hz:≥58dB
     at 150Hz<f<15KHz:≥46dB
     at 15KHz<f<100KHz:≥36dB

    input impedance(unbalanced):≥20KΩ

    nominal input level(settable in 6-dB steps):-12 to +12dBm(0dBm=0.775v into 600Ω)

    continuous input-level adjustment:±3dB

    overdrive limit:≥6.5dB

    AF OUTPUTS

    R,L,M outputs(floating,balanced)

    nominal output level:+6dBm

    output impedance:≤20Ω

    Load impedance:≥200Ω

    Level difference between L and R channels:≤0.1dB

    S output(not floating,unbalanced)

    nominal output level:+6dBm

    output impedance:≤500Ω

    Linear distortions

    frequency response variations of L,R,M or S output

    signal over the frequency range 30Hz to 15KHz

    relative to 500Hz:≤±0.15dB

    Switchable deemphasis:
     50μs±2%
     alternatively(slide switch on printed circuit board):75μs±2%

    Linear crosstalk

    crosstalk between M and S channels:≥46dB(typ.50dB)

    crosstalk between L and R channels:
     at 100Hz to 5KHz:≥60dB(typ.64dB)
     at 30Hz to 15KHz:≥58dB(typ.60dB)

    Nonlinear distortions(L,R,M and S outputs)

    Harmonic distortion at 6 and 12.5dBm:≤±0.1%

    Difference-frequency intermodulation distortion according to DIN 45 403 at 12.5dBm:
     d2:≤±0.05%
     d3:≤±0.1%

    weighted and unweighted noise(with 50-μs deemphasis)

    unweighted signal-to-noise ratio relative to +6dBm

    at 1000Hz,frequency range 30Hz to 100KHz,rms measurement:≥80dB

    weighted signal-to-noise ratio relative to +6dBm,

    peak-value measurement according to CCIR Recommendation 468-1:≥78dB

    peak-value measurement according to DIN 45 405:≥80dB

    Pilot-tone suppression relative to +6dBm:≥90dB

    SCA suppression relative to +6dBm in frequency range 56 to 96KHz(SCA level-16dB relative tomultiplex signal):≥76dB

    Indication on front-panel instrument

    indication of L,R,M,S or pilot-tone level via selector switch

    indicating error:≤0.2dB plus 1.5% of full scale value

    pilot-tone indication:-7.5 to -17dB

    AF indication(6 ranges in 10dB steps):+18 to -66dBm