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    參數(shù)資料
    型號: 935272703551
    廠商: NXP SEMICONDUCTORS
    元件分類: ADC
    英文描述: 3-CH 8-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP144
    封裝: 20 X 20 MM, 1.40 MM HEIGHT, PLASTIC, SOT-486-1, LQFP-144
    文件頁數(shù): 24/61頁
    文件大?。?/td> 326K
    代理商: 935272703551
    2004 May 18
    30
    Philips Semiconductors
    Product specication
    Triple 8-bit video ADC up to 270 Msps
    TDA8754
    Table 28 Phase registers bits
    Table 29 VCO gain control
    9.9
    PLL divider registers
    Table 30 DIVMSB (0Ch) bit allocation
    Table 31 DIVMSB (0Ch) bit description
    PA4
    PA3
    PA2
    PA1
    PA0
    PHASE SHIFT (deg)
    00000
    0
    00001
    11.25
    :::::
    :
    11110
    337.50
    11111
    348.75
    VCO2
    VCO1
    VCO0
    VCO GAIN
    (MHz/V)
    PIXEL CLOCK FREQUENCY
    (MHz)
    0
    13
    12 to 22
    0
    1
    30
    22 to 45
    0
    1
    0
    60
    45 to 62
    0
    1
    60
    62 to 85
    1
    0
    105
    85 to 120
    1
    0
    1
    105
    120 to 176
    1
    0
    135
    176 to 270
    1
    no oscillation
    BIT
    76543210
    Symbol
    CKEXT
    SCH
    CKREFO
    EPSI1
    EPSI0
    DI11
    DI10
    DI9
    DI8
    Default
    00000110
    BIT
    SYMBOL
    DESCRIPTION
    7
    CKEXT
    external clock selection
    0 = internal PLL
    1 = external clock
    6
    SCH
    CKREFO
    shift of pixel counter reference (Ckref) with one clock pixel period
    0 = not active
    1 = active
    5 to 4
    EPSI[1:0]
    enables the resynchronization edge of CKREFO to be selected; they are test bits
    00 = default value for proper operation
    3 to 0
    DI[11:8]
    PLL divider ratio. These are the 4 MSBs of the 12-bit value. See Table 34.
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