rf3235 data sheet brief
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2015-03-23
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Optimum Technology Matching® Applied
GaAs HBT
InGaP HBT
GaAs MESFET
SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
Si BJT
GaN HEMT
Functional Block Diagram
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trade-
mark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. ©2011, RF Micro Devices, Inc.
Product Description
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or customerser[email protected].
BiFET HBT
LDMOS
GND
GND
VBATT
BS2
GND
GND
GND
GND
TRX1
TRX2
GND
GND
TRX3
TRX4
GND
GND
RF3235
QUAD-BAND GSM/GPRS Tx MODULE WITH
UMTS TRANSMIT/RECEIVE PORTS
The RF3235 is a quad-band (GSM850/EGSM900/DCS1800/PCS1900)
GSM/GPRS Class 12-compliant transmit module with six transmit/receive ports for
UMTS use that also serve as GSM Rx ports. This transmit module builds upon
RFMD's leading PowerStar
®
integrated power control technology, SOI (silicon-on-
insulator) switch technology, and integrated transmit filtering for best-in-class har-
monic performance. The results are high performance, reduced solution size, and
ease of implementation. The device is designed for use as the final portion of the
transmitter section in a GSM850/EGSM900/DCS1800/PCS1900/UMTS handset
and eliminates the need for a PA-to-antenna switch module matching network. The
device provides 50 matched input and output ports requiring no external match-
ing components.
The RF3235 features RFMD's latest integrated power-flattening circuit, which signif-
icantly reduces current and power variation into load mismatch. Additionally, a
V
BATT
tracking feature is incorporated to maintain switching performance as supply
voltage decreases. The RF3235 also integrates an ESD filter to provide excellent
ESD protection at the antenna port.
Features
High Efficiency at Rated P
OUT
V
BATT
= 3.5
GSM850/EGSM900 = 43%
DCS1800/PCS1900 = 36%
Integrated Power Flattening
Circuit
Integrated V
BATT
Tracking Circuit
8kV Robust ESD Protection at
Antenna Port
No External Routing
No External DC blocking needed
on TRx Ports
Low TRx Insertion Loss for 3G
efficiency and improved Rx
sensitivity
Six high linearity TRx Ports
High TRx to TRx isolation
0dBm to 6dBm Drive Level,
>50dB of Dynamic Range
Applications
Single thru Quad Band UMTS
handsets and connected devices
including TDSCDMA and CDMA
GSM850/EGSM900/DCS1800/
PCS1900 Products
3V Multimode Mobile
Applications
GPRS Class 12 Compliant
Prelim DS120104
Package: Module 30-pin, 6mm x 6mm x 1mm
RF3235QUAD-
BAND
GSM/GPRS Tx
MODULE WITH
UMTS TRANS-
MIT/RECEIVE
PORTS
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