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  • 參數(shù)資料
    型號: U2782B-AFSG3
    英文描述: 1100 MHz Twin PLL
    中文描述: 1100兆赫雙鎖相環(huán)
    文件頁數(shù): 1/10頁
    文件大?。?/td> 159K
    代理商: U2782B-AFSG3
    U2782B
    TELEFUNKEN Semiconductors
    Rev. A4, 17-Oct-97
    1 (10)
    1100 MHz Twin PLL
    Description
    The IC U2782B is a low power twin PLL manufactured
    with TEMIC’s advanced UHF process. The maximum
    operating frequency is 1100 MHz for both PLLs.
    It features a wide supply voltage range from 2.7 to 5.5 V.
    Prescaler 64/65 and power down function for both PLL’s
    is integrated. Applications are CT1, IS54, JDC etc.
    Features
    Electrostatic sensitive device.
    Observe precautions for handling.
    Very low current consumption (typical 3 V/11 mA)
    Supply voltage range 2.7 to 5.5 V
    Maximum input frequency: 1100 for both PLLs
    2 pins for separate power down functions
    Output for PLL lock status
    Prescaler 64/65 for both inputs
    SSO20 package
    ESD protected according to MIL-STD 833
    method 3015 cl.2
    Block Diagram
    Benefits
    Low current consumption leads to extended talk time
    Twin PLL saves costs and space
    One foot print for all TEMIC twin PLL’s saves design-
    in time
    12 bit reference divider 2
    12 bit latch 2
    17 bit latch 2
    17 bit main divider 2
    17 bit
    Shift register
    17 bit latch 1
    17 bit main divider 1
    12 bit reference divider 1
    12 bit latch 1
    16 bit latch
    Control functions
    Oscillator
    on / off
    divide by 2
    64 / 65 Prescaler 1
    64 / 65 Prescaler 2
    3 bit
    Load control
    Phase
    detector 1
    Phase
    detector 2
    Charge
    pump 1
    Charge
    pump 2
    Pump
    bias
    Lock
    select
    Ports
    Power
    down
    Test
    9
    14
    1
    20
    5I/Port 0
    HPD1/Port1
    HPD2/Port4
    Port3
    Lock Port2
    10
    3
    17
    CP1
    V
    Scp
    19
    18
    Iset
    CP2
    7
    8
    4
    2
    6
    15
    V
    S
    analog
    V
    S
    digital
    DGND
    AGND
    OSCi
    OSCo
    5
    RFi1
    11
    12
    13
    16
    Clock
    Data
    Enable
    RFi2
    94 8916
    Figure 1.
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