AK1543 Datasheet - AKM

AK1543 1300MHz Delta-Sigma Fractional-N Frequency Synthesizer

________________________________ ____________________________ 4 Absolute Maximum Ratings ________________________________ ___________________________ 6 Recommended Operating Range ________________________________ _______________________ 6 Electrical Characteristics ________________________________ _.

[AK1543] AK1543 1300MHz Delta-Sigma Fractional-N Frequency Synthesizer 1. Overview The AK1543 is a Delta-Sigma Fractional-N PLL (Phase Locked Loop) frequency synthesizer with a frequency switching function, covering a wide range of frequencies from 400 to 1300MHz. This product consists of an 18-bit Delta-Sigma modulator, a low-noise phase frequency comparator, a highly accurate charge pump, a reference divider and a dual-module prescaler (P/P+1). An excellent PLL can be achieved by combining th.

AK1543 Features

*     Delta-Sigma Fractional-N frequency synthesizer providing shorter lockup time, lower phase noise and low spurious performance Operating frequency: On-chip charge pump for fast lockup Programmable charge pump current: In a normal operating scheme, the charge pump current can be set in 16 steps

AK1543-AKM.pdf