GENERAL DESCRIPTION

The ADF4154 is a fractional-N frequency synthesizer that implements local oscillators in the up conversion and down conversion sections of wireless receivers and transmitters. It consists of a low noise digital phase frequency detector (PFD), a precision charge pump, and a programmable reference divider. There is a Σ-Δ based fractional interpolator to allow programmable fractional-N division. The INT, FRAC, and MOD registers define an overall N-divider (N = (INT + (FRAC/MOD))). In addition, the 4-bit reference counter (R-counter) allows selectable REFIN frequencies at the PFD input. A complete phase-locked loop (PLL) can be implemented if the synthesizer is used with an external loop filter and a voltage-controlled oscillator (VCO).

FEATURES

RF bandwidth to 4 GHz

2.7 V to 3.3 V power supply

Separate VP allows extended tuning voltage

Programmable dual-modulus prescaler 4/5, 8/9

Programmable charge pump currents

3-wire serial interface

Digital lock detect

Power-down mode

Pin compatible with the ADF4110/ADF4111/ADF4112/ADF4113, ADF4106, ADF4153

Programmable modulus on fractional-N synthesizer

Trade-off noise vs. spurious performance

Fast-lock mode with built-in timer

Loop filter design possible with ADIsimPLL™

ADF4154BCPZ-RL属于集成电路（IC） > 时钟发生器，PLL，频率合成器。亚德诺半导体技术有限公司制造生产的ADF4154BCPZ-RL时钟发生器，PLL，频率合成器时钟发生器、PLL 和频率合成器集成电路 (IC) 可为逻辑器件提供参考信号的稳定定时脉冲，这些器件包括计算机、微控制器、数据通信系统和图形/视频发生器。这些集成电路可能包括缓冲器、驱动器、分频器、倍频器、多路复用器、合成器、扇出分配器和预分频器。