AK1590 Datasheet | Asahi Kasei Microdevices

[AK1590] 1GHz Delta-Sigma Fractional-N Frequency Synthesizer 1. Overview AK1590 is a Delta-Sigma Fractional-N PLL (Phase Locked Loop) frequency synthesizer with a frequency switching function, covering a wide range of frequencies from 60 to 1000MHz. This product consists of an 18-bit Delta-Sigma modulator, a low-noise phase frequency parator, a highly accurate charge pump, a reference divider, dual-module prescaler (P/P+1) and frequency offset adjustable circuits. 2. Features   Operating frequency: Programmable charge pump current: 60 to 1000MHz In a normal operating scheme, the charge pump current can be set in 8 steps, in the range from 20 to 168μA. In a Fast Lockup scheme,...