PS2500 - Philsar

PS2500 Low-Power Direct Digital Modulation Frequency Synthesizer

The PS2500 Direct Digital Modulation Fractional-N frequency synthesizer provides ultra-fine frequency resolution, fast switching speed, and low phase-noise performance. This synthesizer is a key building block in designing high-performance narrowband and multi-band radio systems that require low power and fine step size. The ultra-fine step size of less than.

Features

• 2.2 GHz maximum operating frequency
• 500 MHz maximum auxiliary synthesizer
• Ultra-small step size 100 Hz or less
• High-reference frequency enables larger loop bandwidth PLL
• Fast switching speed
• Phase-noise to -92 dBc/Hz inside the loop filter bandwidth
• Spurious -70 dBc/Hz inside the loop filter bandwidth
• Software programmable power-down modes
• High-speed serial interface
• 3-wire programming
• Programmable division ratios on reference frequency
• Phase detectors with programmable gain provide a programmable loop bandwidth
• Frequency Power SteeringTM speeds up acquisition 5x with.