RF2498

www.DataSheet4U.com RF2498 0 Typical Applications CDMA/Cellular/PCS/GPS Handsets JCDMA/GPS Handsets CDMA Modem/Data Cards Product Description -A5.00 SQ. TRI-BAND/QUAD-MODE CDMA/GPS LOW NOISE AMPLIFIER/MIXER Commercial and Consumer Systems Portable Battery-Powered Equipment 0.10 C A 2 PLCS The RF2498 is a high performance CDMA tri-band/quadmode integrated LNA/mixer with GPS capability. The device is designed to meet all IS-98 sensitivity, intermodulation and single-tone requirements. The RF2498 integrates the tri-band LNA/downconverters with 27.5dB of gain control for the cellular band and 29dB for the PCS band. The RF2498 is designed for three state gain control solutions for IS-98 IMD testing. The device offers a dedicated GPS LNA/mixer with 37dB of gain. Additionally, a divide-by-2 prescaler to allow the use of either a single- or dual-band VCO is integrated. There is also a TX LO buffer. The design is flexible, in that the bias currents may be set using off-chip current reference resistors for the mixer and LNA blocks. The device is packaged in a plastic, 5mmx5mm, leadless chip carrier. Optimum Technology Matching® Applied Si BJT Si Bi-CMOS InGaP/HBT GaAs HBT SiGe HBT GaN HEMT GaAs MESFET 0.90 0.85 0.05 0.00 0.05 C 2.50 TYP 0.10 C B 2 PLCS 0.70 0.65 Dimensions in mm. 12° MAX 0.10 C B 2 PLCS -B2.37 TYP 4.75 SQ. 0.10 C A 2 PLCS SEATING PLANE -C0.10 M C A B NOTES: 1. Shaded lead is Pin 1. 2 Dimension applies to plated terminal: to be measured between ...