Product Description

The RF2494 is a monolithic integrated UHF receiver front end suitable for 2.4GHz ISM band applications. The IC contains all of the required components to implement the RF functions of the receiver except for the passive filtering and LO generation. It contains an LNA (low-noise amplifier), a second RF amplifier and a doubly balanced mixer. The output of the LNA is made available as an output to permit the insertion of a bandpass filter between the LNA and the RF/Mixer section. The mixer outputs can be selectively disabled to allow for the IF filter to be used in the transmit mode.

Features

• Single 2.7V to 3.6V Power Supply

• 2400MHz to 2500MHz Operation

• Two Gain Settings: 28dB or 12dB

• 4.5dB Cascaded NF, High Gain Mode

• 20mA DC Current Consumption

• Input IP3: -23dBm or -8dBm

Typical Applications

• Part of 2.4GHz IEEE802.11b WLANs

• Digital Communication Systems

• Spread-Spectrum Communication Systems

• WLAN or Wireless Local Loop

• Portable Battery-Powered Equipment

• UHF Digital and Analog Receivers