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HMC704LP4E

8 GHz 16-Bit Fractional-N PLL

Product Details

Data Sheet
Package Layout
Tape & Reel
ECCN: 3A001.a.11.b

Quality & Reliability

Environmental Data Sheet
Qualification Test Reports

Press & Media

Product Press Release

Product Support

User's Manual
Eval. PCB Schematic
Software Download
Freq. (GHz) Function Max. PFD Freq. (MHz) Figure of Merit (Fract/Int) (dBc/Hz) Freq. Res. (Hz) Bias Supply Package
DC - 8 Fractional-N 100 -230 / -233 3 +5V @ 6mA
+3.3V @ 52mA		 LP4

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 Frac. Mode
   -233 dBc/Hz Int. Mode 100 MHz PFD
• High PFD rate: 100 MHz
• 24 Lead 4x4mm SMT
   Package: 16mm²

Typical Applications

• 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 Function Diagram

General Description

The HMC704LP4E has been designed for the best phase noise and lowest spurious content possible in an integrated synthesizer. Fabricated in a SiGe BiCMOS process, this Fractional-N frequency synthesizer 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.