RF9812 - RFMD.com

RF9812
RF9812QUADBAND 3.2V
MULTI-MODE
TRANSMIT
MODULE
QUAD-BAND GPRS/LINEAR EDGE +3.2V
TD-SCDMA MULTI-MODE TRANSMIT MODULE
RFIN LB
4
GND
5
GND
6
High Efficiency at Rated POUT




Integrated Power Flattening
Circuit for Lower Power Variation Under Mismatch Conditions
Integrated VBATT Tracking Circuit for improved Switching
Spectrum under low VBATT
Conditions
Symmetrical RX Ports
Robust 8kV ESD Protection at
Antenna Port
Pin Compatible with RF9810
Applications



3.2V Quad-Band
GSM/GPRS/EDGE and DualBand TD-SCDMA Handsets
Mobile GPRS/EDGE/
TD-SCDMA Data Products
GPRS Class 12 Compliant
Products
GND
RX1
RX2
RX3
GND
17
16
15 ANTENNA
Switch
Amplifier
RX4
ESD
Protection
• VBATT=3.5V
• GSM850/EGSM900=41/40%
• DCS1800/PCS1900=38/36%

18
14
TD_EN
13
GPCTRL3
CMOS Controller
7
8
9
10
11
12
GPCTRL2

3
19
VBATT

GND
20
GPCTRL1

2
21
GPCTRL0

TD-SCDMA Compliant
B34/39
TD-HSDPA and TD-HSPA+
Compliant
+25 dBm Output Power TDSCDMA
Low Gain Mode for reduced
ICQ
RFIN HB
22
TX ENABLE

1
VRAMP
Features
GND
GND
Package: 22-pin Module, 6.63mm x 5.24mm x 1.00mm
Functional Block Diagram
Product Description
The RF9812 is a Quad Band EDGE+TD-SCDMA Multi-Mode Transmit Module with the capability
to support both GSM/GPRS/Linear EDGE (GSM850/EGSM900/DCS1800/PCS1900) and
TDSCDMA (1880MHz to 1920MHz and 2010MHz to 2025MHz) B34/39 frequency bands. The
RF9812 continues to build upon RFMD’s leading patented PowerStar® Architecture to include
such features as a Power Flattening Circuit, VRAMP Filtering, VBATT Tracking, EDGE Low Power
Mode. RFMD has integrated TD-SCDMA functionality into the RF9812, so it can be used as the
transmit module in 3.2V, 50 GSM/EDGE/TD-SCDMA dual-mode cellular equipment.
The RF9812 module includes a multi-function CMOS controller, GaAs HBT power amplifier, and
pHEMT front end antenna switch. The amplifier devices are manufactured on RFMD’s Advance
Gallium Arsenide Heterojunction Bipolar Transistor (GaAs HBT) Process, which is designed to
operate either in saturated mode for GMSK or linear mode for EDGE 8PSK and TD-SCDMA signaling. The highly integrated EDGE+TD-SCDMA transmit module simplifies GSM/TD-SCDMA
dual-mode handset and data card design by eliminating the need for complicated control loop
design, output RF spectrum (ORFS) optimization, harmonic filtering, and component matching,
all of which combine to provide best in class RF performance, solution size, and ease of implementation for GSM/EDGE/TD-SCDMA dual-mode cellular phone and data card systems. The RF
ports are 50 matched and the antenna port includes ESD protection circuitry which meets the
stringent 8kV industry standards requiring no additional components. All of these eliminated
factors help to improve the customer’s product time to market.
GaAs HBT
GaAs MESFET
InGaP HBT
Optimum Technology Matching® Applied
SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
Si BJT
GaN HEMT
RF MEMS
LDMOS
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trademark 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. ©2012, RF Micro Devices, Inc.
DS120910
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
1 of 2
RF9812
Please contact
RFMD Technical Support
at (336) 678-5570
for more information.
2 of 2
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
DS120910