Dual-band / CDMA/AMPS downconverter IC
INTEGRATED CIRCUITS
SA9502 Dual-band, CDMA/AMPS downconverter IC
Product specification Supersedes data of 1998 Dec 10 I...
Description
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
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