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SA9502

Dual-band, CDMA/AMPS downconverter IC

Philips Electronics 

Philips Semiconductors

Dual-band, CDMA/AMPS downconverter IC

Product specification

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.

FEATURES

• PCS and cellular downconverter mixers typical performance:

– PCS: Gain=11.1dB, NF=8.4dB, IIP3= +1.8dBm

– CDMA: Gain=11.3dB, NF=9.4dB, IIP3= +5.7dBm

– FM:

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

• Switchable wideband LO output buffer

• Low voltage operation down to 2.7V

• Low current consumption in “idle”/receive modes:

– PCS : 14.3mA @ 2.7V

– CDMA: 17.6mA @ 2.7V

– FM:

6.8mA @ 2.7V

• Low standby current in sleep mode, typically 12 µA

• TSSOP20 package

APPLICATIONS

• 800MHz analog FM and CDMA digital receivers

• 1900MHz PCS band CDMA digital recievers

• Supports dual-mode and triple-mode operation

• Digital mobile communications equipment

• Portable, low power radio equipment

ORDERING INFORMATION

EXTENDED

TYPE NUMBER

SA9502DH

PINS

20

PIN POSITION

TSSOP

PACKAGE

MATERIAL

Plastic thin shrink small outline package; body 6.5 x 4.4 x 1.1 mm

CODE

SOT360-1

1999 Mar 19

2

853–2135 21064

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