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SA8028 Datasheet 2.5 Ghz Sigma Delta Fractional-n / 760 Mhz If Integer Frequency Synthesizers

Manufacturer: Philips Semiconductors (now NXP Semiconductors)

Overview: INTEGRATED CIRCUITS SA8028 2.5 GHz sigma delta fractional-N / 760 MHz IF integer frequency synthesizers Product data Supersedes data of 2002 Jan 09 File under Integrated Circuits — IC17 2002 Feb 22 Philips Semiconductors Philips Semiconductors Product data 2.

General Description

The SA8028 BICMOS device integrates programmable dividers, charge pumps and phase comparators to implement phase–locked loops.

The device is designed to operate from 3 NiCd cells, in pocket phones, with low current and nominal 3 V supplies.

The synthesizer operates at VCO input frequencies up to 2.5 GHz.

Key Features

  • Extremely low phase noise:.
  • L(f) =.
  • 101 dBc/Hz at 5 kHz offset at 800 MHz Low power Programmable Normal & Integral charge pump outputs: Maximum output = 10.4 mA Digital fractional spurious compensation Hardware and software power-down IDDsleep < 0.1 µA (typ) at VDD = 3.0 V Seperate supply for VDD and VDDCP Programmable loop filter bandwidth GND GNDPre RFin+ RFin.
  • GNDCP TOP VIEW 16 15 14 8 PHI 9 GN.

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