HMC704LP4E

v04.0215 Typical Applications The HMC704LP4E is ideal for: Microwave Point-to-Point Radios Base Stations for Mobile Radio (GSM, PCS, DCS, CDMA, WCDMA) Wireless LANs, WiMAX Communications Test Equipment CATV Equipment Automotive Functional Diagram HMC704LP4E 8 GHZ FRACTIONAL-N PLL Features Wide band: DC - 8 GHz RF Input, 4 GHz 19-bit Prescaler Industry Leading Phase Noise & Spurious: -112 dBc/Hz @ 8 GHz Fractional, 50 kHz Offset Figure of Merit -230 dBc/Hz Fractional Mode -233 dBc/Hz Integer Mode 100 MHz PFD High PFD rate: 100 MHz 24 Lead 4x4 mm SMT Package: 16 mm2 General Description The HMC704LP4E has been designed for the best phase noise and lowest spurious content possible in an integrated PLL. Fabricated in a SiGe BiCMOS process, this Fractional-N PLL con­sists of a very low noise digital phase detector, VCO divider, reference divider and a precision controlled charge pump. Ultra low in-close phase noise and low spurious allows wide loop bandwidths for faster fre­quency hopping and low micro-phonics. Exact frequency mode with 24-bit fractional mod­ulator provides the ability to generate fractional frequencies with zero frequency error, an important feature for Digital Pre-Distortion systems. The serial interface offers read back capability and is compatible with a wide variety of protocols. PLLs - SMT 5-1 IrrlTiniecgrfaseohpdntrseomsemnoaFsfatiisibtroohkingislrirrtdayafupnnpirsdtnaerairdristescihegsbeseuiysdmtt,heimebardedtyp9dmlebiAc7tyarlanayi...