●Product Details
●The HMC701LP6CE is a SiGe BiCMOS fractional-N frequency synthesizer. The synthesizer includes a 8GHz 16-bit RF N-Divider, a 24-bit delta-sigma modulator, a very low noise digital phase frequency detector (PFD), and a precision controlled charge pump. In addition the synthesizer supports an external step tuned VCO.
●The fractional synthesizer features an advanced delta-sigma modulator design that allows ultra-fine frequency step sizes. The synthesizer features the ability to alter both the phase-frequency detector (PFD) gain and the cycle slipping characteristics of the PFD. This feature can reduce the time to arrive at the new frequency by 50% vs. conventional PFDs. Ultra low in-close phase noise also allows wider loop bandwidths for faster frequency hopping.
●The synthesizer contains a built-in linear sweeper function, which allows it to perform frequency chirps with a wide variety of sweep times, polarities and dwells, all with an external or automatic sweep trigger.
●A General Purpose Output (GPO) bus supports the use of multiple VCOs. In addition the synthesizer has a number of auxiliary clock generation modes that can be accessed via the GPO.
●Applications
● Base Stations for Mobile Radio
●(GSM, PCS, DCS, CDMA, WCDMA)
● Wireless LANs, WiMax
● Communications Test Equipment
● CATV Equipment
● FMCW Sensors
● Automotive Radar
● Phased-Array Systems
●### Features and Benefits
● 24-Bit Step Size Resolution, 3 Hz typ
● Ultra Low Phase Noise
● 6 GHz, 50 MHz Ref. -103 / -110 dBc/Hz @ 20 kHz (Frac / Integer)
● Auto & Triggered Sweeper Functions
● Cycle Slip Prevention (CSP) for Fast Settling
● Autotune Support for External Step Tuned VCOs
● Multi-VCO Support
● 40 Lead 6x6mm SMT Package: 36mm²
