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.
FEATUREs
◾ TD-SCDMA Compliant
B34/39
◾ TD-HSDPA and TD-HSPA+
Compliant
◾ +25 dBm Output Power TDSCDMA
◾ Low Gain Mode for reduced
ICQ
◾ High Efficiency at Rated POUT
• VBATT=3.5V
• GSM850/EGSM900=41/40%
• DCS1800/PCS1900=38/36%
◾ 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