PLL Frequency Synthesizer

GENERAL DESCRIPTION The ADF4108 frequency synthesizer can be used to implement local oscillators in the up-conversion and down-conversion sections of wireless receivers and transmitters. It consists of a low noise digital PFD (phase frequency detector), a precision charge pump, a programmable r

文件：445.4 Kbytes 頁(yè)數(shù)：20 Pages

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PLL Frequency Synthesizer

FEATURES 8.0 GHz bandwidth 3.2 V to 3.6 V power supply Separate charge pump supply (VP) allows extended voltage in 3.3 V systems Programmable, dual-modulus prescaler 8/9, 16/17, 32/33, or 64/65 Programmable charge pump currents Programmable antibacklash pulse width 3-wire serial interface

文件：381.1 Kbytes 頁(yè)數(shù)：20 Pages

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8 GHz整數(shù)N分頻PLL

ADF4108頻率合成器在無(wú)線接收機(jī)和發(fā)射機(jī)的上變頻和下變頻部分中，可用來(lái)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、可編程參考分頻器、可編程A和B計(jì)數(shù)器以及雙模預(yù)分頻器(P/P+1)組成。A（6位）、B（13位）計(jì)數(shù)器與雙模預(yù)分頻器(P/P+1)配合，可實(shí)現(xiàn)N分頻器(N = BP + A)。此外，14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)。其帶寬極高(8GHz)，因此許多高頻系統(tǒng)可以省去倍頻器或預(yù)分頻器，從而簡(jiǎn)化系統(tǒng)架構(gòu)并降低成本。 ? 帶寬：8.0 GHz\n\n? 3.2 V至3.6 V電源供電\n\n? 獨(dú)立的電荷泵電源(VP) 可在3.3 V系統(tǒng)中提供擴(kuò)展的調(diào)諧電壓\n\n? 可編程雙模預(yù)分頻器：8/9、16/17、32/33或64/65\n\n? 可編程電荷泵電流;

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亞德諾

PLL Frequency Synthesizer

FEATURES 8.0 GHz bandwidth 3.2 V to 3.6 V power supply Separate charge pump supply (VP) allows extended voltage in 3.3 V systems Programmable, dual-modulus prescaler 8/9, 16/17, 32/33, or 64/65 Programmable charge pump currents Programmable antibacklash pulse width 3-wire serial interface

文件：381.1 Kbytes 頁(yè)數(shù)：20 Pages

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亞德諾

PLL Frequency Synthesizer

FEATURES 8.0 GHz bandwidth 3.2 V to 3.6 V power supply Separate charge pump supply (VP) allows extended voltage in 3.3 V systems Programmable, dual-modulus prescaler 8/9, 16/17, 32/33, or 64/65 Programmable charge pump currents Programmable antibacklash pulse width 3-wire serial interface

文件：381.1 Kbytes 頁(yè)數(shù)：20 Pages

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亞德諾

PLL Frequency Synthesizer

GENERAL DESCRIPTION The ADF4108 frequency synthesizer can be used to implement local oscillators in the up-conversion and down-conversion sections of wireless receivers and transmitters. It consists of a low noise digital PFD (phase frequency detector), a precision charge pump, a programmable r

文件：445.4 Kbytes 頁(yè)數(shù)：20 Pages

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亞德諾

PLL Frequency Synthesizer

GENERAL DESCRIPTION The ADF4108 frequency synthesizer can be used to implement local oscillators in the up-conversion and down-conversion sections of wireless receivers and transmitters. It consists of a low noise digital PFD (phase frequency detector), a precision charge pump, a programmable r

文件：445.4 Kbytes 頁(yè)數(shù)：20 Pages

AD

亞德諾

PLL Frequency Synthesizer

FEATURES 8.0 GHz bandwidth 3.2 V to 3.6 V power supply Separate charge pump supply (VP) allows extended voltage in 3.3 V systems Programmable, dual-modulus prescaler 8/9, 16/17, 32/33, or 64/65 Programmable charge pump currents Programmable antibacklash pulse width 3-wire serial interface

文件：381.1 Kbytes 頁(yè)數(shù)：20 Pages

AD

亞德諾

PLL Frequency Synthesizer

FEATURES 8.0 GHz bandwidth 3.2 V to 3.6 V power supply Separate charge pump supply (VP) allows extended voltage in 3.3 V systems Programmable, dual-modulus prescaler 8/9, 16/17, 32/33, or 64/65 Programmable charge pump currents Programmable antibacklash pulse width 3-wire serial interface

文件：381.1 Kbytes 頁(yè)數(shù)：20 Pages

AD

亞德諾

PLL Frequency Synthesizer

GENERAL DESCRIPTION The ADF4108 frequency synthesizer can be used to implement local oscillators in the up-conversion and down-conversion sections of wireless receivers and transmitters. It consists of a low noise digital PFD (phase frequency detector), a precision charge pump, a programmable r

文件：445.4 Kbytes 頁(yè)數(shù)：20 Pages

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