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  • 參數(shù)資料
    型號: ADF4360-2BCPZRL7
    廠商: Analog Devices Inc
    文件頁數(shù): 10/24頁
    文件大?。?/td> 0K
    描述: IC SYNTHESIZER VCO 24LFCSP
    標準包裝: 1,500
    類型: 扇出配送,整數(shù)-N,合成器(RF)
    PLL:
    輸入: CMOS,TTL
    輸出: 時鐘
    電路數(shù): 1
    比率 - 輸入:輸出: 1:2
    差分 - 輸入:輸出: 無/無
    頻率 - 最大: 2.17GHz
    除法器/乘法器: 是/無
    電源電壓: 3 V ~ 3.6 V
    工作溫度: -40°C ~ 85°C
    安裝類型: 表面貼裝
    封裝/外殼: 24-VFQFN 裸露焊盤,CSP
    供應商設備封裝: 24-LFCSP-VQ(4x4)
    包裝: 帶卷 (TR)
    配用: EVAL-ADF4360-2EBZ1-ND - BOARD EVALUATION FOR ADF4360-2
    ADF4360-2
    Data Sheet
    Rev. C | Page 18 of 24
    CONTROL LATCH
    With (C2, C1) = (0, 0), the control latch is programmed. Table 7
    shows the input data format for programming the control latch.
    Prescaler Value
    In the ADF4360 family, P2 and P1 in the control latch set the
    prescaler values.
    Power-Down
    DB21 (PD2) and DB20 (PD1) provide programmable power-
    down modes.
    In the programmed asynchronous power-down, the device
    powers down immediately after latching a 1 into Bit PD1, with
    the condition that PD2 is loaded with a 0. In the programmed
    synchronous power-down, the device power-down is gated by
    the charge pump to prevent unwanted frequency jumps. Once
    the power-down is enabled by writing a 1 into Bit PD1 (on the
    condition that a 1 is also loaded to PD2), the device goes into
    power-down on the second rising edge of the R counter output,
    after LE goes high. When the CE pin is low, the device is
    immediately disabled regardless of the state of PD1 or PD2.
    When a power-down is activated (either synchronous or
    asynchronous mode), the following events occur:
    All active dc current paths are removed.
    The R, N, and timeout counters are forced to their load
    state conditions.
    The charge pump is forced into three-state mode.
    The digital lock detect circuitry is reset.
    The RF outputs are debiased to a high impedance state.
    The reference input buffer circuitry is disabled.
    The input register remains active and capable of loading and
    latching data.
    Charge Pump Currents
    CPI3, CPI2, and CPI1 in the ADF4360 family determine
    Current Setting 1.
    CPI6, CPI5, and CPI4 determine Current Setting 2. See the
    truth table in Table 7.
    Output Power Level
    Bit PL1 and Bit PL2 set the output power level of the VCO. See
    the truth table in Table 7.
    Mute-Till-Lock Detect (LD)
    DB11 of the control latch in the ADF4360 family is the mute-
    till-lock detect bit. This function, when enabled, ensures that
    the RF outputs are not switched on until the PLL is locked.
    CP Gain
    DB10 of the control latch in the ADF4360 family is the charge
    pump gain bit. When it is programmed to 1, Current Setting 2
    is used. When it is programmed to 0, Current Setting 1 is used.
    Charge Pump (CP) Three-State
    This bit puts the charge pump into three-state mode when
    programmed to a 1. It should be set to 0 for normal operation.
    Phase Detector Polarity
    The PDP bit in the ADF4360 family sets the phase detector
    polarity. The positive setting enabled by programming a 1 is
    used when using the on-chip VCO with a passive loop filter or
    with an active noninverting filter. It can also be set to 0, which is
    required if an active inverting loop filter is used.
    MUXOUT Control
    The on-chip multiplexer is controlled by M3, M2, and M1.
    See the truth table in Table 7.
    Counter Reset
    DB4 is the counter reset bit for the ADF4360 family. When this
    is 1, the R counter and the A, B counters are reset. For normal
    operation, this bit should be 0.
    Core Power Level
    PC1 and PC2 set the power level in the VCO core. The
    recommended setting is 15 mA for frequencies above 2 GHz
    and 20 mA for frequencies below 2 GHz. No other settings are
    valid. See the truth table in Table 7.
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