SA9502

INTEGRATED CIRCUITS SA9502 Dual-band, CDMA/AMPS downconverter IC Product specification Supersedes data of 1998 Dec 10 IC17 Data Handbook 1999 Mar 19 Philips Semiconductors Philips Semiconductors Product specification Dual-band, CDMA/AMPS downconverter IC SA9502 DESCRIPTION The SA9502 integrates all the front end receive mixers necessary for use in dual-band, triple-mode CDMA/AMPS cellular phone handsets. There are three individual mixer blocks, each optimised for high linearity with low power consumption for operation in one of the following modes: High-band 1900MHz PCS CDMA, low-band 800MHz cellular CDMA or analog FM AMPS/TACS modes. Additionally, the entire circuit can be powered down and put into sleep mode, reducing the supply current to typically 12 µA. The circuit has been designed in our advanced QUBiC2 BiCMOS process with 20GHz fT. Switchable wideband LO output buffer Low voltage operation down to 2.7V Low current consumption in “idle”/receive modes: – PCS : – CDMA: – FM: 14.3mA @ 2.7V 17.6mA @ 2.7V 6.8mA @ 2.7V Low standby current in sleep mode, typically 12 µA TSSOP20 package APPLICATIONS FEATURES – PCS: – CDMA: – FM: PCS and cellular downconverter mixers typical performance: Gain=11.1dB, NF=8.4dB, IIP3= +1.8dBm Gain=11.3dB, NF=9.4dB, IIP3= +5.7dBm Gain= 7.5dB, NF=10.5dB, IIP3= +6.2dBm Separate, selectable IF outputs to suit FM and CDMA bandwiths PCS mixer LO: direct or via internal frequency doubler ORDERING INFORMATION EXTENDED TYPE NUM...