The RF210A and RF210B devices are available as a dual-band front end for Global System for Mobile Communications (GSM) handset applications. Both of these highly integrated, monolithic devices are optimized for dual-band use in GSM900/DCS1800 or GSM 900/PCS1900 applications. The devices include two Low Noise Amplifiers (LNAs), two image-reject mixers, and two Local Oscillator (LO) buffer amplifiers.

Features

• LNA/image-reject mixer for RF to IF conversion

• 10 dB (RF210A) or 20 dB (RF210B) switchable

gain for GSM

• 8 dB (RF210A) or 16 dB (RF210B) switchable gain

for DCS/PCS

• 30 dB of image rejection. No post-LNA filtering

required

• High isolation LO input buffer

• Differential IF output

• High dynamic range

• Three-cell battery operation (2.7 to 5 V)

• 20-pin Thin Shrink Small Outline Package

(TSSOP)

Applications

• Dual-band digital cellular mobile telephony

(GSM900/DCS 1800 or GSM900/PCS1900)