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[AK1590]
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 comparator, 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, the charge pump current can be set in 8 steps, in the range from 0.8 to 2.3mA.
AK1590 Datasheet
