Fractional-N Frequency Synthesizer

GENERAL DESCRIPTION The ADF4153 is a fractional-N frequency synthesizer that implements local oscillators in the upconversion and downconversion sections of wireless receivers and transmitters. It consists of a low noise digital phase frequency detector (PFD), a precision charge pump, and a progr

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Fractional-N Frequency Synthesizer

GENERAL DESCRIPTION The ADF4153 is a fractional-N frequency synthesizer that implements local oscillators in the upconversion and downconversion sections of wireless receivers and transmitters. It consists of a low noise digital phase frequency detector (PFD), a precision charge pump, and a progr

文件：354.49 Kbytes 頁(yè)數(shù)：24 Pages

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

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Fractional-N Frequency Synthesizer

文件：354.49 Kbytes 頁(yè)數(shù)：24 Pages

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小數(shù)N分頻頻率合成器

ADF4153是一款小數(shù)N分頻頻率合成器，用來(lái)在無(wú)線接收機(jī)和發(fā)射機(jī)的上變頻和下變頻部分實(shí)現(xiàn)本振。它由低噪聲數(shù)字鑒頻鑒相器(PFD)、精密電荷泵和可編程參考分頻器組成。該器件內(nèi)置一個(gè)Σ-Δ型小數(shù)插值器，能夠?qū)崿F(xiàn)可編程小數(shù)N分頻。INT、FRAC和MOD寄存器可構(gòu)成一個(gè)總N分頻器(N = (INT + (FRAC/MOD)))。此外，4位參考分頻器（R計(jì)數(shù)器）允許PFD輸入端的REFIN頻率為可選值。如果頻率合成器與外部環(huán)路濾波器和電壓控制振蕩器(VCO)一起使用，則可以實(shí)現(xiàn)完整的鎖相環(huán)(PLL)。\n\n 簡(jiǎn)單的三線式接口控制所有片內(nèi)寄存器。該器件采用2.7 V至3.3 V電源供電，不 ? RF帶寬達(dá)4 GHz\n? 2.7 V至3.3 V電源供電\n? 獨(dú)立的電荷泵電源VP可提供擴(kuò)展的調(diào)諧電壓 \n? Y版本：-40°C至+125°C\n? 可編程小數(shù)模數(shù)\n? 可編程電荷泵電流;

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Fractional-N Frequency Synthesizer

GENERAL DESCRIPTION The ADF4153 is a fractional-N frequency synthesizer that implements local oscillators in the upconversion and downconversion sections of wireless receivers and transmitters. It consists of a low noise digital phase frequency detector (PFD), a precision charge pump, and a progr

文件：354.92 Kbytes 頁(yè)數(shù)：24 Pages

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Fractional-N Frequency Synthesizer

GENERAL DESCRIPTION The ADF4153 is a fractional-N frequency synthesizer that implements local oscillators in the upconversion and downconversion sections of wireless receivers and transmitters. It consists of a low noise digital phase frequency detector (PFD), a precision charge pump, and a progr

文件：354.92 Kbytes 頁(yè)數(shù)：24 Pages

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Fractional-N Frequency Synthesizer

GENERAL DESCRIPTION The ADF4153 is a fractional-N frequency synthesizer that implements local oscillators in the upconversion and downconversion sections of wireless receivers and transmitters. It consists of a low noise digital phase frequency detector (PFD), a precision charge pump, and a progr

文件：354.92 Kbytes 頁(yè)數(shù)：24 Pages

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Fractional-N Frequency Synthesizer

GENERAL DESCRIPTION The ADF4153 is a fractional-N frequency synthesizer that implements local oscillators in the upconversion and downconversion sections of wireless receivers and transmitters. It consists of a low noise digital phase frequency detector (PFD), a precision charge pump, and a progr

文件：354.49 Kbytes 頁(yè)數(shù)：24 Pages

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亞德諾

Fractional-N Frequency Synthesizer

GENERAL DESCRIPTION The ADF4153 is a fractional-N frequency synthesizer that implements local oscillators in the upconversion and downconversion sections of wireless receivers and transmitters. It consists of a low noise digital phase frequency detector (PFD), a precision charge pump, and a progr

文件：354.92 Kbytes 頁(yè)數(shù)：24 Pages

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