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    參數(shù)資料
    型號(hào): TC7129CKW
    元件分類: ADC
    英文描述: 1-CH DUAL-SLOPE ADC, ACCESS, PQFP44
    封裝: PLASTIC, QFP-44
    文件頁數(shù): 7/17頁
    文件大?。?/td> 185K
    代理商: TC7129CKW
    15
    TC7129
    4-1/2 DIGIT ANALOG-TO-DIGITAL
    CONVERTER WITH ON-CHIP LCD DRIVERS
    Figure 17.
    Display Segment Assignments
    The ANNUNCIATOR DRIVE output (pin 3) is a square-
    wave running at the backplane frequency (100 Hz or 83.3Hz),
    with a peak-to-peak voltage equal to DGND voltage. Con-
    necting an annunciator to pin 3 turns it ON; connecting it to
    its backplane turns it OFF.
    Figure 18.
    Backplane Waveforms
    BP1
    BP2
    BP3
    LOW BATTERY
    CONTINUITY
    F4, E4, DP4
    A4, G4, D4
    B4, C4, BC4
    F3, E3, DP3
    A3, G3, D3
    B3, C3, MINUS
    B1, C1, CONTINUITY
    A1, G1, D1
    F1, E1, DP1
    B2, C2, LOW BATTERY
    A2, G2, D2
    BACKPLANE
    CONNECTIONS
    F2, E2, DP2
    CONTINUITY
    BP1
    BP2
    BP3
    Figure 19.
    Typical Display Output Waveforms
    VDD
    VH
    VL
    VDISP
    VDD
    VH
    VL
    VDISP
    VDD
    VH
    VL
    VDISP
    VDD
    VH
    VL
    VDISP
    b SEGMENT
    LINE
    ALL OFF
    a SEGMENT
    ON
    d, g OFF
    a, g ON
    d OFF
    ALL ON
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    相關(guān)代理商/技術(shù)參數(shù)
    參數(shù)描述
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