MAX2651/MAX2652/MAX2653
19-1506; Rev 2; 8/03
GSM900 and DCS1800/PCS1900 Dual-Band, Low-Noise
Amplifiers
General Description
Features
The MAX2651/MAX2652/MAX2653 silicon germanium (SiGe), low-noise
amplifiers (LNAs) are intended for use in GSM900, DCS1800, and PCS1900 band wireless handsets.
The MAX2651/MAX2652 consist of two LNAs, one optimized for the GSM900 band and the other optimized for the DCS1800/PCS1900 bands.
They feature a band-select pin to switch between the two LNAs, as well as a gain-step input to reduce the gain of each LNA by 20dB and reduce supply current.
The MAX2652 is functionally equivalent to the MAX2651, but features a lowpower shutdown mode.
The MAX2653 consists ...