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 页数：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 页数：20 Pages

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8 GHz整数N分频PLL

ADF4108频率合成器在无线接收机和发射机的上变频和下变频部分中，可用来实现本振。它由低噪声数字鉴频鉴相器(PFD)、精密电荷泵、可编程参考分频器、可编程A和B计数器以及双模预分频器(P/P+1)组成。A（6位）、B（13位）计数器与双模预分频器(P/P+1)配合，可实现N分频器(N = BP + A)。此外，14位参考分频器（R计数器）允许PFD输入端的REFIN 频率为可选值。如果频率合成器与外部环路滤波器和电压控制振荡器(VCO)一起使用，则可以实现完整的锁相环(PLL)。其带宽极高(8GHz)，因此许多高频系统可以省去倍频器或预分频器，从而简化系统架构并降低成本。 • 带宽：8.0 GHz\n\n• 3.2 V至3.6 V电源供电\n\n• 独立的电荷泵电源(VP) 可在3.3 V系统中提供扩展的调谐电压\n\n• 可编程双模预分频器：8/9、16/17、32/33或64/65\n\n• 可编程电荷泵电流;

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亚德诺

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 页数：20 Pages

AD

亚德诺

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 页数：20 Pages

AD

亚德诺

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 页数：20 Pages

AD

亚德诺

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 页数：20 Pages

AD

亚德诺

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 页数：20 Pages

AD

亚德诺

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 页数：20 Pages

AD

亚德诺

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 页数：20 Pages

AD

亚德诺