The HMC700LP4(E) is a SiGe BiCMOS fractional-N frequency synthesizer. The synthesizer includes a very low noise digital phase frequency detector (PFD), and a precision controlled charge pump. The fractional synthesizer features an advanced deltasigma modulator design that allows both ultra-fine step sizes and very low spurious products. Spurious outputs are low enough to eliminate the need for costly Direct Digital Synthesis (DDS) references in many applications. The HMC700LP4(E) phase-frequency detector (PFD) features cycle slip prevention (CSP) technology that allows faster frequency hopping times. Ultra low in-close phase noise and low spurious also permit architectures with wider loop bandwidths for faster frequency hopping and low micro-phonics. FSK mode allows the synthesizer to be used as a simple low cost direct FM transmitter source. Applications * Base Stations for Mobile Radio * WiMAX * Test & Measurement * CATV Equipment * Phased Array Applications * Simple FSK Links * DDS Replacement * 8 GHz, 16 bit prescaler * Fractional or Integer Modes * 24 bit step size resolution, 3 Hz typ * Ultra Low Phase Noise * 6 GHz; 50 MHz Ref. -103 / -108 dBc/Hz @ 20 kHz (Frac/INT) * Figure of Merit (FOM) -221/-227 dBc/Hz (Frac/INT) * 225 MHz, 14bit reference path input * Direct FSK Modulation Mode * Cycle Slip Prevention * Read / Write Serial Port, Chip ID * 24 Lead 4x4mm SMT Package: 16mm²