AK1547 Datasheet - AKM

AK1547 4GHz Low Noise Integer-N Frequency Synthesizer

and Assignments _____________________________________________ 4 Absolute Maximum Ratings ____________________________________________________________ 6 Recommended Operating Range ________________________________________________________ 6 Electrical Characteristics __________________________________.

[AK1547] AK1547 4GHz Low Noise Integer-N Frequency Synthesizer 1. Overview The AK1547 is an Integer-N PLL (Phase Locked Loop) frequency synthesizer, covering a wide range of frequency from 500MHz to 4GHz. Consisting of a highly accurate charge pump, a reference divider, a programmable divider and a dual-modulus prescaler (P/P+1), this product provides high performance, very low Phase Noise and small footprints. An ideal PLL can be achieved by combining the AK1547 with the external loop filter a.

AK1547 Features

* Operating frequency : Programmable charge pump current : 500MHz to 4GHz 650μA to 5200μA typical with 8steps The current range can be controlled by an external resistor. Fast lock mode for improved lock time : The programmable timer can switch two charge pump current setting. Sup

AK1547-AKM.pdf