AK1545 Datasheet - AKM

AK1545 3.5GHz Low Noise Integer-N Frequency Synthesizer

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

[AK1545] AK1545 3.5GHz Low Noise Integer-N Frequency Synthesizer 1. Overview The AK1545 is an Integer-N PLL (Phase Locked Loop) frequency synthesizer, covering a wide range of frequency from 500MHz to 3.5GHz. Co nsisting of a h ighly accurate charg e pum p, a referenc e di vider, a pro grammable divider and a dual-modulus prescaler (P/P+1), this product provides high performance, very low Phase Noise. An ideal PL L can be ach ieved b y comb ining th e AK154 5 with the exter nal l oop filter a n.

AK1545 Features

* Operating frequency : Programmable charge pump current : Fast lock mode : Supply Voltage : Separate Charge Pump Power Supply : Excellent Phase Noise : On-chip lock detection feature of PLL : Digit 500MHz to 3.5GHz 250μA and 1mA The charge pump current is switched by this function. 2.

AK1545-AKM.pdf