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      參數(shù)資料
      型號: HC55140IB
      廠商: INTERSIL CORP
      元件分類: 模擬傳輸電路
      英文描述: Low Power Universal SLIC Family
      中文描述: TELECOM-SLIC, PDSO28
      封裝: PLASTIC, MS-013-AE, SOIC-28
      文件頁數(shù): 31/35頁
      文件大?。?/td> 382K
      代理商: HC55140IB
      4-31
      Basic Application Circuit
      Voice Only 28 Lead PLCC Package
      TIP
      RING
      FIGURE 27. UniSLIC14 VOICE ONLY BASIC APPLICATION CIRCUIT
      V
      TX
      V
      RX
      ZT
      RSYNC_REV
      ILIM
      ROH
      RD
      SHD
      GKD_LVM
      C1
      C2
      C3
      V
      CC
      RRLY
      CH
      BGND
      VBH
      VBL
      RDC_RAC
      CDC
      DR
      DT
      CRT_REV_LVM
      C
      1
      +5V
      +5V OR
      +12V
      RELAY
      C
      2
      -24V
      C
      5
      -48V
      R
      1
      C
      3
      R
      P
      RING
      TIP
      R
      P
      R
      2
      R
      3
      VBAT
      RING
      GENERATOR
      CONTROL LOGIC
      R
      4
      R
      6
      R
      7
      R
      8
      R
      5
      R
      9
      R
      10
      R
      11
      CODEC/FILTER
      C
      4
      R
      12
      U1
      U2
      1
      27
      2
      3
      4
      5
      6
      7
      8
      9
      10
      11
      12
      13
      14
      15
      16
      17
      18
      19
      20
      21
      22
      23
      24
      26
      28
      PTG
      C7
      +5V
      C
      6
      AGND
      25
      C
      8
      C
      9
      SPM
      D
      1
      OPTIONAL
      PERFORM TRANSHYBRID BALANCE
      WHEN USING A NON-DSP CODEC.
      NOT REQUIRED FOR DSP CODEC.
      NOT REQUIRED FOR
      NON-DSP CODEC’s.
      REQUIRED FOR DSP CODEC’s
      C10
      C11
      TABLE 2. BASIC APPLICATION CIRCUIT COMPONENT LIST
      COMPONENT
      VALUE
      TOLERANCE
      RATING
      U1 - SLIC
      UniSLIC14 Family
      N/A
      N/A
      U2 - Dual Asymmetrical Transient Voltage Suppressor
      TISP1072F3
      30
      21k
      2M
      41.2k
      38.3k
      33.2k
      34.8k
      107k
      20k
      400
      0.1
      μ
      F
      0.1
      μ
      F
      0.1
      μ
      F
      0.47
      μ
      F
      4.7
      μ
      F
      2200pF
      N/A
      N/A
      RP (Line Feed Resistors)
      Matched 1%
      2.0W
      R1 (RDC_RAC Resistor)
      1%
      1/16W
      R2, R3
      1%
      1/16W
      R4 (RD Resistor)
      1%
      1/16W
      R5 (ROH Resistor)
      1%
      1/16W
      R6 (RILIM Resistor)
      1%
      1/16W
      R7 (RSYNC_REV Resistor)
      1%
      1/16W
      R8 (RZT Resistor)
      1%
      1/16W
      R9, R10, R11
      1%
      1/16W
      R12
      5%
      2W
      C1 (Supply Decoupling), C2
      20%
      10V
      C5 (Supply Decoupling)
      20%
      50V
      C6 (Supply Decoupling)
      20%
      100V
      C4, C7, C10, C11
      20%
      10V
      C3
      20%
      50V
      C8, C9
      20%
      100V
      D1, Recommended if the VBL supply is not derived from the VBH Supply
      1N4004
      -
      -
      Design Parameters
      : Maximum on hook voltage = 0.775V
      RMS
      , Maximum Off hook Voice = 3.2V
      PEAK
      , Switch Hook Threshold = 12mA, Loop
      Current Limit = 31mA, Synthesize Device Impedance = 540
      (600 - 60), with 30
      protection resistors, impedance across Tip and Ring terminals =
      600
      . Where applicable, these component values apply to the Basic Application Circuits for the HC55120, HC55121, HC55130/1, HC55140/1,
      HC55142/3 and HC55150/1. Pins not shown in the Basic Application Circuit are no connect (NC) pins.
      HC55120, HC55121, HC55130, HC55131, HC55140, HC55141, HC55142, HC55143, HC55150, HC55151
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