Wideband Synthesizer with Integrated VCO

The ADF4350 allows implementation of fractional-N or integer-N phase-locked loop (PLL) frequency synthesizers if used with an external loop filter and external reference frequency. The ADF4350 has an integrated voltage controlled oscillator (VCO) with a fundamental output frequency ranging from

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Broadband Low Error Vector Magnitude (EVM) Direct Conversion Transmitter

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Wideband Synthesizer with Integrated VCO

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Wideband LO PLL Synthesizer with Simple Interface to Quadrature Demodulators

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Minimizing Spurious Outputs Using a Synthesizer with an Integrated VCO and an External PLL Circuit

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Powering a Fractional-N Voltage Controlled Oscillator with Low Noise LDO Regulators for Reduced Phase Noise

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Broadband Low Error Vector Magnitude Direct Conversion Transmitter Using LO Divide-by-2 Modulator

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集成VCO的寬帶頻率合成器

ADF4350結(jié)合外部環(huán)路濾波器和外部基準(zhǔn)頻率使用時(shí)，可實(shí)現(xiàn)小數(shù)N分頻或整數(shù)N分頻鎖相環(huán)(PLL)頻率合成器。\n\n ADF4350具有一個(gè)集成電壓控制振蕩器(VCO)，其基波輸出頻率范圍為2200 MHz至4400 MHz。此外，利用1/2/4/8/16分頻電路，用戶可以產(chǎn)生低至137.5 MHz的RF輸出頻率。對(duì)于要求隔離的應(yīng)用，RF輸出級(jí)可以實(shí)現(xiàn)靜音。靜音功能既可以通過(guò)引腳控制，也可以通過(guò)軟件控制。同時(shí)提供輔助RF輸出，且不用時(shí)可以關(guān)斷。\n\n 所有片內(nèi)寄存器均通過(guò)簡(jiǎn)單的三線式接口進(jìn)行控制。該器件采用3.0 V至3.6 V電源供電，不用時(shí)可以關(guān)斷。 ? 輸出頻率范圍：137.5 MHz至4400 MHz\n\n? 小數(shù)N分頻頻率合成器和整數(shù)N分頻頻率合成器\n\n? 具有低相位噪聲的VCO \n\n? 可編程1/2/4/8/16分頻輸出\n\n? 均方根(RMS)抖動(dòng)：小于0.4 ps rms（典型值） \n\n? 電源電壓：3.0 V至3.6 V\n\n? 邏輯兼容性：1.8 V \n\n? 可編程雙模預(yù)分頻器：4/5或8/9 \n\n? 可編程的輸出功率 \n\n? RF輸出靜音功能 \n\n? 三線式串行接口 \n\n? 模擬和數(shù)字鎖定檢測(cè)\n\n? 在寬帶寬內(nèi)快速鎖定模式\n\n? 周跳減少;

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Wideband Synthesizer with Integrated VCO

The ADF4350 allows implementation of fractional-N or integer-N phase-locked loop (PLL) frequency synthesizers if used with an external loop filter and external reference frequency. The ADF4350 has an integrated voltage controlled oscillator (VCO) with a fundamental output frequency ranging from

文件：803.23 Kbytes 頁(yè)數(shù)：28 Pages

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Wideband Synthesizer with Integrated VCO

The ADF4350 allows implementation of fractional-N or integer-N phase-locked loop (PLL) frequency synthesizers if used with an external loop filter and external reference frequency. The ADF4350 has an integrated voltage controlled oscillator (VCO) with a fundamental output frequency ranging from

文件：803.23 Kbytes 頁(yè)數(shù)：28 Pages

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