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  • 參數(shù)資料
    型號: XRT75L06IB-F
    廠商: Exar Corporation
    文件頁數(shù): 35/63頁
    文件大?。?/td> 0K
    描述: IC LIU E3/DS3/STS-1 6CH 217BGA
    標(biāo)準(zhǔn)包裝: 60
    類型: 線路接口裝置(LIU)
    驅(qū)動器/接收器數(shù): 6/6
    規(guī)程: DS3,E3,STS-1
    電源電壓: 3.135 V ~ 3.465 V
    安裝類型: 表面貼裝
    封裝/外殼: 217-BBGA
    供應(yīng)商設(shè)備封裝: 217-BGA(23x23)
    包裝: 托盤
    XRT75L06
    REV. 1.0.3
    SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
    37
    The jitter attenuator within the XRT75L06 meets the latest jitter attenuation specifications and/or jitter transfer
    characteristics as shown in the Figure 28.
    4.3.1
    JITTER GENERATION
    Jitter Generation is defined as the process whereby jitter appears at the output port of the digital equipment in
    the absence of applied input jitter. Jitter Generation is measured by sending jitter free data to the clock and
    data recovery circuit and measuring the amount of jitter on the output clock or the re-timed data. Since this is
    essentially a noise measurement, it requires a definition of bandwidth to be meaningful. The bandwidth is set
    according to the data rate. In general, the jitter is measured over a band of frequencies.
    TABLE 10: JITTER TRANSFER PASS MASKS
    RATE
    (KBITS)
    MASK
    F1
    (HZ)
    F2
    (HZ)
    F3
    (HZ)
    F4
    (KHZ)
    A1(dB)
    A2(dB)
    34368
    G.823
    ETSI-TBR-24
    100
    300
    3K
    800K
    0.5
    -19.5
    44736
    GR-499, Cat I
    GR-499, Cat II
    GR-253 CORE
    10
    10k
    56.6k
    40
    -
    15k
    300k
    15k
    0.1
    -
    51840
    GR-253 CORE
    10
    40k
    -
    400k
    0.1
    -
    FIGURE 28. JITTER TRANSFER REQUIREMENTS AND JITTER ATTENUATOR PERFORMANCE
    F1
    A1
    F2
    J
    IT
    T
    E
    R
    AMPL
    IT
    UDE
    J IT T E R F R E QUE N C Y (k H z )
    A2
    F3
    F4
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