RDA8206 R DA8206 T RANSCEIVER FOR 2.5G and 3G TD-SCDMA W IRELESS C OMMUNICATIONS Features Single-chip solution: RDA8206 Dual-mode applications: z 2.5G GSM/GPRS z 3G TD-SCDMA Multi-band cellular systems: z Quad-band GSM/GPRS z Dual-band TD-SCDMA HSDPA support for TD-SCDMA Exceeds all RF requirements of 3GPP TS 25.102 Revision #5 7x7 mm 48-pin QFN CMOS process technology Lead-free/RoHS-compliant Option of 3-wire/4-wire serial control interface 2.7 to 3.3 V single supply voltage Highest integration Industry-leading performance Integrated TD-SCDMA transceiver including the following: z Digital zero-IF receiver z Direct up-conversion transmitter z Frequency synthesizer Integrated VCO, loop filters, and varactor Integrated GSM/GPRS transceiver including the following: z Digital low-IF receiver z Direct modulation transmitter z Frequency synthesizer Integrated VCO, loop filters, and varactor Reference clocking: 26MHz TCXO Baseband interface options: z Universal analog BB I/Q for GSM/GPRS and TD-SCDMA z 10-bit parallel digital BB I/Q for TD-SCDMA z DigRF v1.12 digital BB I/Q for GSM/GPRS -110dBm sensitivity in GSM operation and -111 dBm in TD-SCDMA operation Option of 1.8V/3.0V for interface voltage TD-SCDMA TX EVM: 2.5% (Pout = +2dBm) TD-SCDMA RX EVM: 5.0% (RFin = -60dBm) Applications UMTS(TDD)/TD-SCDMA cellular handsets GSM/GPRS cellular handsets for 850MHz900MHz1800MHz and 1900MHz bands Wireless data modems and terminals Description The RDA8206B RF transceiver is a fully integrated single-chip CMOS RF transceiver, fabricated in proven CMOS technology, for the Third Generation Partnership Project (3GPP) specification for the Universal Mobile Telecommunication System (UMTS) and GSM applications for 850MHz, 900MHz, 1800MHz and 1900MHz bands. The chip is specifically designed for UMTS Time Division Duplex (TDD) mode or TD-SCDMA standard that operates in the dual-band range of 1880 to 1920 MHz and 2010 to 2025 MHz (1.28 Mcps option) and for GSM mode that operates in the quad-band range of 850MHz, 900MHz, 1800MHz and 1900MHz. The chipset consists of the RDA8206 transceiver and RDA8252 power amplifier for TD-SCDMA, RDA6212 power amplifier for GSM and RDA ES04 TX.RX switch. This RF chipset provides a complete solution connecting antenna to baseband for these two modes, eliminating the expensive IF SAW filter. All bulky components, such as RF VCO, loop filters, and tuning inductors, are completely integrated on chip. In TD-SCDMA mode, the receiver is a zero-IF architecture which includes an RF front-end (LNA, Mixer), an analog channel filter and a sigma-delta A/D converter which is followed by a digital signal processing unit (DSP) that performs digital filtering, digital PGA, and The information contained herein is the exclusive property of RDA and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of RDA. RDA8206 DC-offset cancellation. In GSM mode, the receiver is a low-IF architecture which includes an RF front-end (LNA, Mixer), an analog channel filter and also a sigma-delta A/D converter which is followed by a DSP that performs the second mixing, digital filtering, digital PGA, and DC-offset cancellation. In TD-SCDMA mode, the transmitter is a direct up --- conversion architecture which includes a low-pass baseband filter, a highly linear I/Q modulator and a large dynamic range RF VGA and a driver for external power amplifier (PA). In GSM mode, the transmitter is an direct PLL modulation architecture which includes a fractional-N PLL, an transmit PLL and a driver for external power amplifier (PA). The transceiver supports the universal analog baseband I/Q interface for GSM/GPRS and TD-SCDMA. Also RDA8206 supports the 10-bit parallel digital baseband I/Q interface for TD-SCDMA. To be compatible with DigRF standard, RDA8206 can support the DigRF v1.12 digital baseband I/Q interface for GSM/GPRS DIGITAL FILTER DC OFFSET CANCELLATION DIGITAL FILTER ANTENNA/SWITCH DC OFFSET CANCELLATION RDA8206 Functional Block Diagram The information contained herein is the exclusive property of RDA and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of RDA.