SiGe DUAL LNA INCREASES SENSITIVITY PERFORMANCE FOR GSM DUAL-BAND PHONES
Note to Editor: The MAX2652 is the most feature-rich LNA product for GSM dual-band handset applications. It provides the lowest noise figure performance (1.3dB vs. IBM's 1.5dB on the latest IBM43RF1113 GSM Dual LNA) and comes in the smallest package in comparison to the competition (10-pin µMAX, 4.9mm x 3.0mm, vs. IBM's 16-pin TSSOP, 6.4mm x 5.1mm, which is 120% larger).
SUNNYVALE, CA-November 3, 1999-Maxim Integrated Products introduces the MAX2652 SiGe low-noise amplifier (LNA) capable of operation at the GSM900, DCS1800, and PCS1900 bands. By taking advantage of Maxim's advanced SiGe bipolar process, this LNA provides very low noise figure, high gain, and high linearity. The device includes a 20dB attenuation step control to further improve receiver sensitivity and dynamic range performance in today's GSM dual-band and triple-band cellular phones.
The MAX2652 consists of two LNAs. One LNA is optimized for the GSM900 band and provides a low 1.3dB noise figure and a high 18dB gain; the other LNA is optimized for the DCS1800 band and provides 1.8dB noise figure and also an 18dB gain. A band-select pin allows either of the two LNAs to be active at one time, helping to reduce supply current. The device also features a 1µA low-power shutdown mode, making it the most feature-rich LNA product for GSM dual-band handset applications. The MAX2652 operates on a single +2.7V to +3.3V supply and draws only 7mA in the high-gain mode and 2.3mA in the low-gain mode. Combined with the MAX2653 PCS1900 LNA, the two devices form an ideal low-cost high-performance front-end solution for GSM/DCS/PCS triple-band cellular phones.
The MAX2652 comes in a miniature 10-pin µMAX package measuring only 4.9mm x 3.0mm (including leads). Prices start from $1.27 (1000-up, FOB USA). A fully assembled evaluation kit (MAX2652EVKIT) is available to help reduce design time.
|
