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| www..com SI4209 SI4209 Transceiver for GSM and GPRS Description The SI4209 transceiver is a complete RF front end for dual-band GSM and GPRS wireless communications. The receive section interfaces between the RF band-select SAW filters and the baseband subsystem. The SI4209 receiver leverages a proven digital low-IF architecture and enables a universal baseband interface without the need for complex dc offset compensation. The transmit section of SI4209 provides a complete upconversion path from the baseband subsystem to the power amplifier (PA) using an offset phase-locked loop (OPLL) integrated with Silicon Laboratories' patented synthesizer technology. All sensitive components, such as TX/RF VCOs, loop filters, tuning inductors, and varactors are completely integrated into a single integrated circuit. The SI4209 transceiver includes a digitally-controlled crystal oscillator (DCXO) and completely integrates the reference oscillator and varactor functionality. Features 5x5 mm 25-pin QFN Smallest solution footprint Highest integration Industry-leading performance Integrated GSM/GPRS transceiver including the following: - Digital low-IF receiver - Complete support for 900/1800, 900/1900, 850/1800, 850/1900 band configurations - Region management flexibility - Offset PLL transmitter - Integrated TX VCO, loop filter, and varactor - Frequency synthesizer - Integrated RF VCO, loop filter, and varactor - Digitally-controlled crystal oscillator (DCXO) - Universal analog baseband interface - Quad-band support: - GSM 850 Class 4, small MS - E-GSM 900 Class 4, small MS - DCS 1800 Class 1 - PCS 1900 Class 1 - GPRS class 12 compliant - 3-wire serial control interface - 2.7 to 3.0 V operation .com process technology - CMOS - Lead-free/RoHS-compliant DataShee Applications - Dual-band GSM/GPRS digital cellular handsets - Dual-band GSM/GPRS wireless data modems SI4209 ANTENNA SWITCH 900 1800 1900 850 900 1800 1900 PGA DIGITAL FILTER 850 RFIL LNA I ADC Q ADC LOW-IF DET PGA RFIH LNA 0 / 90 PGA PGA INTERFACE I Q Digital RFOL PA RFOH VCO + FREQUENCY SYNTHESIZER XTAL1 XOUT DCXO XTAL2 .com Aero II Copyright (c) 2005 by Silicon Laboratories 10.5.05 BASEBAND ANALOG www..com SI4209 SI4209 Transceiver for GSM and GPRS Selected Electrical Specifications Parameter Symbol Test Condition Receiver Characteristics GSM 850 band E-GSM 900 band FIN DCS 1800 band PCS 1900 band GSM 850 band E-GSM 900 band NF25 DCS 1800 band PCS 1900 band Transmitter Characteristics GSM 850 band E-GSM 900 band DCS 1800 band PCS 1900 band RFOL Transmit Mode RFOH Transmit Mode 400 kHz offset 400 kHz offset 10 MHz offset 20 MHz offset .com 20 MHz offset Min 869 925 1805 1930 -- -- -- -- 824 880 1710 1850 -- -- -- -- -- -- -- -- Typ -- -- -- -- 2.9 3.1 2.8 2.9 -- -- -- -- 1.5 1.9 5 -66 -65 -160 -165 -160 Max 894 960 1880 1990 TBD TBD TBD TBD 849 915 1785 1910 3.0 3.0 10 -62 -62 -155 -164 -157 Unit MHz MHz MHz MHz dB dB dB dB MHz MHz MHz MHz o o o RMS RMS Input Frequency Noise Figure at 25 C RFOL Output Frequency RFOH Output Frequency Phase Error PEAK t4U.com RFOL Output Modulation Spectrum RFOH Output Modulation Spectrum RFOL Output Phase Noise RFOH Output Phase Noise dBc dBc dBc/Hz dBc/Hz dBc/Hz Pin Assignments XTAL1 XTAL2 SCLK VDD VDD 25 SEN 1 SDIO 2 BQN 3 1 ID Package Information 24 23 22 21 20 VDD 19 18 RFILN 17 RFILP 16 RFIHN 15 RFIHP 14 RFOH XEN 9 RESET BQP 4 BIN 5 BIP 6 XOUT 7 8 PDN 10 VIO GND PAD 11 VDD 12 VDD 13 RFOL Patents pending Symbol A A1 b c D D2 e f E Min 0.80 0.00 0.18 0.20 Millimeters Nom Max 0.85 1.00 0.02 0.05 0.23 0.30 0.25 0.30 5.00 BSC 3.20 3.30 3.40 0.50 BSC 0.28 BSC 5.00 BSC Symbol E2 L L1 aaa bbb ccc ddd eee Min 3.20 0.30 0.03 -- -- -- -- -- Millimeters Nom Max 3.30 3.40 0.40 0.50 0.05 0.08 -- 0.10 -- 0.10 -- 0.08 -- 0.10 -- 0.10 .com Aero II Copyright (c) 2005 by Silicon Laboratories Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc. Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders 10.5.05 |
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