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RF2449 - CDMA/FM LOW NOISE AMPLIFIER/MIXER 900MHZ DOWNCONVERTER

Description

The RF2449 is a receiver front-end designed for the receive section of dual-mode CDMA/FM cellular applications.

It is designed to amplify and downconvert RF signals, while providing 30dB of stepped gain control range.

Features

  • include digital control of LNA gain, mixer gain, LNA IIP3, and power down mode. Another feature of the chip is adjustable IIP3 of the LNA and mixer using an offchip current setting resistor. The LNA IIP3 can be digitally controlled between two levels to reduce current draw in CDMA standby and other conditions where high IIP3 is not required. Noise Figure, IP3, and other specs are designed to be compatible with the IS-98 specification for CDMA cellular communications. The IC is manufactured on an.

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Datasheet Details

Part number RF2449
Manufacturer RF Micro Devices
File Size 288.26 KB
Description CDMA/FM LOW NOISE AMPLIFIER/MIXER 900MHZ DOWNCONVERTER
Datasheet download datasheet RF2449 Datasheet
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Full PDF Text Transcription

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Preliminary 8 Typical Applications • CDMA/FM Cellular Systems • Supports Dual-Mode CDMA/AMPS • Supports Dual-Mode CDMA/TACS RF2449 CDMA/FM LOW NOISE AMPLIFIER/MIXER 900MHZ DOWNCONVERTER • General Purpose Downconverter • Commercial and Consumer Systems • Portable Battery-Powered Equipment Product Description The RF2449 is a receiver front-end designed for the receive section of dual-mode CDMA/FM cellular applications. It is designed to amplify and downconvert RF signals, while providing 30dB of stepped gain control range. Features include digital control of LNA gain, mixer gain, LNA IIP3, and power down mode. Another feature of the chip is adjustable IIP3 of the LNA and mixer using an offchip current setting resistor.
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