RF2890

RF2890 0 Typical Applications CDMA Cellular/GPS Applications JCDMA/GPS Applications AMPS/GPS Applications Product Description -A4.00 SQ 2.00 TYP DUAL-BAND CDMA CELLULAR/GPS LOW NOISE AMPLIFIER/MIXER CDMA Modem/Data Cards Commercial and Consumer Systems Portable Battery-Powered Equipment 0.15 C A 2 PLCS 0.15 C B 2 PLCS The RF2890 is a high performance dual band CDMA Cellular and GPS LNA/mixer. An integrated optional LO prescaler allows VCO flexibility. The device is designed to exceed all sensitivity, intermodulation and single-tone requirements. The RF2890 is designed for three state gain control solutions (17.5dB of gain control) for cellular band IMD testing. The device offers a dedicated low current (15.5mA) GPS LNA/mixer with 32.5dB gain. An integrated TX LO buffer is also included. The design is flexible, in that the bias currents may be set using off-chip current reference resistors for the mixer and LNA blocks. Noise figure, IIP3, and other specifications are designed to be compatible with the TIA/EIA 98D standard for CDMA cellular communications. The device is packaged in a plastic, 4mmx4mm QFN. Optimum Technology Matching® Applied Si BJT Si Bi-CMOS InGaP/HBT ENABLE 3 2 PLCS 0.15 C B 1.87 TYP 0.15 C A 2 PLCS 0.90 0.85 0.70 0.65 0.05 C 3.75 SQ Top View -B- 0.10 M C A B 0.05 0.00 0.60 0.24 TYP 0.30 2 0.18 PIN 1 ID 0.20 R Dimensions in mm 2.49 SQ. 2.19 12° MAX 0.50 0.30 TYP -CNOTES: 1 Shaded lead is pin 1. 2 3 SEATING PLANE 0.50 Bottom View ...