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Part: SA9502DH
Category:
Communication
-> Wireless
-> TDMA/CDMA/WCDMA
Description: SA9502; Dual-band, Cdma/amps Downconverter ic
Company: Philips Semiconductors
Datasheet: Download SA9502DH datasheet File size : 70 kB
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Datasheet text preview:
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 ľA. The circuit has been designed in our advanced QUBiC2 BiCMOS process with 20GHz fT.
ˇ Switchable wideband LO output buffer ˇ Low voltage operation down to 2.7V ˇ Low current consumption in "idle"/receive modes:
PCS : CDMA: FM: 14.3mA @ 2.7V 17.6mA @ 2.7V 6.8mA @ 2.7V
ˇ Low standby current in sleep mode, typically 12 ľA ˇ TSSOP20 package
APPLICATIONS
FEATURES
PCS: CDMA: FM:
ˇ 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
ˇ Separate, selectable IF outputs to suit FM and CDMA bandwiths ˇ PCS mixer LO: direct or via internal frequency doubler
ORDERING INFORMATION
EXTENDED TYPE NUMBER SA9502DH
ˇ 800MHz analog FM and CDMA digital receivers ˇ 1900MHz PCS band CDMA digital recievers ˇ Supports dual-mode and triple-mode operation ˇ Digital mobile communications equipment ˇ Portable, low power radio equipment
PACKAGE PINS 20 PIN POSITION TSSOP MATERIAL Plastic thin shrink small outline package; body 6.5 x 4.4 x 1.1 mm CODE SOT360-1
1999 Mar 19
2
8532135 21064
Philips Semiconductors
Product specification
Dual-band, CDMA/AMPS downconverter IC
SA9502
BLOCK DIAGRAM
RX BPF Fo = 1960 MHz BW = 60 MHz PCS_in 2 2 CELL RX BPF Fo = 881.5MHz BW = 45 MHz Cell_in 1 1 1 PCS LO PCS CELL 2 FM IF BPF Fo = 85.38MHz BW = 30kHz ×2 2 2 2 FM_Out 2 2 PCS 2 CDMA IF BPF Fo = 85.38MHz BW = 1.23MHz CDMA_Out
SA9502
1 MODE SELECT LOGIC
BIAS CTRL 1
CDMA/FM
PCS/CELL
LO OUT
LO BUFFER ENABLE
CEL LO IN
VCC
PWR ON/OFF
SR01718
Figure 1. Block Diagram
Table 1.
Mode Selection Summary
PCS/CEL (Pin 6) low low high high CDMA/FM/LO doubler (Pin 17) low high low high Cellular FM Cellular CDMA CDMA PCS, direct LO in CDMA PCS, LO via frequency doubler MODE
1999 Mar 19
3
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