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    參數(shù)資料
    型號(hào): EP20K200QC240-1ES
    英文描述: FPGA
    中文描述: FPGA的
    文件頁數(shù): 61/114頁
    文件大小: 1623K
    代理商: EP20K200QC240-1ES
    50
    Altera Corporation
    APEX 20K Programmable Logic Device Family Data Sheet
    Figure 30. Specifications for the Incoming & Generated Clocks
    The tI parameter refers to the nominal input clock period; the tO parameter refers to the
    nominal output clock period.
    Table 15 summarizes the APEX 20K ClockLock and ClockBoost
    parameters for -1 speed-grade devices.
    Table 15. APEX 20K ClockLock & ClockBoost Parameters for -1 Speed-Grade
    Devices (Part 1 of 2)
    Symbol
    Parameter
    Min
    Max
    Unit
    fOUT
    Output frequency
    25
    180
    MHz
    fCLK1 (1)
    Input clock frequency (ClockBoost
    clock multiplication factor equals 1)
    25
    180
    MHz
    fCLK2
    Input clock frequency (ClockBoost
    clock multiplication factor equals 2)
    16
    90
    MHz
    fCLK4
    Input clock frequency (ClockBoost
    clock multiplication factor equals 4)
    10
    48
    MHz
    tOUTDUTY
    Duty cycle for
    ClockLock/ClockBoost-generated
    clock
    40
    60
    %
    fCLKDEV
    Input deviation from user
    specification in the Quartus II
    software (ClockBoost clock
    multiplication factor equals 1) (2)
    25,000
    PPM
    tR
    Input rise time
    5
    ns
    tF
    Input fall time
    5
    ns
    Input
    Clock
    ClockLock
    Generated
    Clock
    f CLK1 f CLK2
    f CLK4
    t INDUTY
    t I + t CLKDEV
    t R
    t F
    t O
    t I + t INCLKSTB
    t O
    tO
    t JITTER
    tO + t JITTER
    t OUTDUTY
    ,,
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