[Conexant]

The RF212 device is available as a dual-band (EGSM900/DCS1800) front end or as a tri-band (EGSM900/DCS1800/PCS1900) front end for Global System for Mobile Communications (GSM) mobile telephony applications. Each device integrates all the required front-end components after the frequency pre-select filters. These components include the Low Noise Amplifiers (LNAs), the internal image-reject filters, mixers, and a Local Oscillator (LO) amplifier.

Features

• Supports EGSM

• LNA and mixer for RF to IF conversion

• 12 dB or 20 dB switchable gain step

• Minimum 35 dB of image rejection

• No external post-LNA filters required

• Common Intermediate Frequency (IF) port for all bands

• IF range from 350 MHz to 450 MHz

• High isolation LO input buffer

• Differential IF output

• High dynamic range with low current consumption

• Three-cell battery operation (2.7 to 3.6 V)

• 20-pin Exposed paddle, Thin Shrink Small Outline Package (ETSSOP)

Applications

• Dual/tri-band digital cellular mobile telephony (EGSM900/DCS1800, or EGSM900/DCS1800/PCS1900)