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      參數(shù)資料
      型號: 4565B2
      元件分類: 數(shù)字傳輸電路
      英文描述: ATM/SONET/SDH SUPPORT CIRCUIT, PBGA909
      封裝: PLASTIC, BGA-909
      文件頁數(shù): 44/61頁
      文件大?。?/td> 1691K
      代理商: 4565B2
      Hardware Design Guide, Revision 2
      4565B Ultramapper Full Transport Retiming Device
      December 17, 2003
      622/155 Mbits/s SONET/SDH x DS3/E3/DS2/DS1/E1
      Agere Systems Inc.
      49
      Table 6-5. M13/E13 Input Clocks Specifications
      Clock Name
      Period
      (ns)
      Frequency
      Accuracy
      (ppm)
      Jitter
      Rise
      (ns)
      Fall
      (ns)
      Min/Max
      Duty Cycle
      DS2AISCLK
      158.42
      6.312 MHz
      30
      5
      Max
      50% ± 5%
      E2AISCLK
      118.37
      8.448 MHz
      30
      5
      Max
      50% ± 5%
      Table 6-6. DS3/E3 DJA Input Clocks Specifications
      Clock Name
      Period
      (ns)
      Frequency
      Accuracy
      (ppm)
      Jitter
      Rise
      (ns)
      Fall
      (ns)
      Min/Max
      Duty Cycle
      DS3XCLK
      22.35
      44.736 MHz
      20
      0.01 UIp-p or 0.22 nsp-p
      (10 kHz—400 kHz)
      3.5
      Max
      50% ± 5%
      E3XCLK
      29.09
      34.368 MHz
      20
      0.01 UIp-p or 0.29 nsp-p
      (100 kHz—800 kHz)
      3.5
      Max
      50% ± 5%
      Table 6-7. LOPOH Input Clock Specifications
      Clock Name
      Period
      (ns)
      Frequency
      Accuracy
      (ppm)
      Jitter
      Rise
      (ns)
      Fall
      (ns)
      Min/Max
      Duty Cycle
      LOPOHCLKIN
      51.44
      19.44 MHz
      8
      Max
      50% ± 5%
      Table 6-8. Microprocessor Interface Input Clocks Specifications
      Clock Name
      Period
      (ns)
      Frequency
      Accuracy
      (ppm)
      Jitter
      Rise
      (ns)
      Fall
      (ns)
      Min/Max
      Duty Cycle
      MPCLK (min)*
      62.5
      16 MHz
      4
      Min
      50% ± 10%
      MPCLK (max)
      15.15
      66 MHz
      4
      Max
      50% ± 10%
      * If DTN is used, then the maximum frequency for MPCLK is determined by the processor’s setup specification for DTN. MPU maximum bus oper-
      ating frequency = 1/(MPU DTN setup time + tDTNVPD). For example, an 8 ns setup time would limit MPCLK to 50 MHz for reliable DTN detec-
      tion.
      Table 6-9. Framer PLL Input Clocks Specifications
      Clock Name
      Period
      (ns)
      Frequency
      Accuracy
      (ppm)
      Jitter
      Rise
      (ns)
      Fall
      (ns)
      Min/Max
      Duty Cycle
      CLKIN_PLL
      19.2
      51.84 MHz
      20
      GR-499 and
      G.823
      50% ± 10%
      CHIRXGTCLK (DS1 mode) 647.66
      1.544 MHz
      32
      GR-499
      10
      Max
      50% ± 10%
      CHIRXGTCLK (E1 mode)
      488.28
      2.048 MHz
      50
      G.823
      10
      Max
      50% ± 10%
      Table 6-10. CHI Input Clocks Specifications
      Clock Name
      Period
      (ns)
      Frequency
      Accuracy
      (ppm)
      Jitter
      Rise
      (ns)
      Fall
      (ns)
      Min/Max
      Duty Cycle
      CHIRXGCLK (CHI mode)
      488.28
      2.048 MHz
      50
      10
      Max
      50% ± 10%
      CHIRXGCLK (CHI mode)
      244.14
      4.096 MHz
      50
      10
      Max
      50% ± 10%
      CHIRXGCLK (CHI mode)
      122.07
      8.192 MHz
      50
      10
      Max
      50% ± 10%
      CHIRXGCLK (CHI mode)
      61.035
      16.384 MHz
      50
      10
      Max
      50% ± 10%
      CHITXGCLK (CHI mode)
      488.28
      2.048 MHz
      50
      10
      Max
      50% ± 10%
      CHITXGCLK (CHI mode)
      244.14
      4.096 MHz
      50
      10
      Max
      50% ± 10%
      CHITXGCLK (CHI mode)
      122.07
      8.192 MHz
      50
      10
      Max
      50% ± 10%
      CHITXGCLK (CHI mode)
      61.035
      16.384 MHz
      50
      10
      Max
      50% ± 10%
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