1 of 2 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 tradem arks 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 customerservice@rfmd.com . bifet hbt ldmos ? RF3237 quad-band gsm/gprs tx module with umts transmit/receive ports the RF3237 is a quad-band (gsm850/egsm900/dcs1800/pcs1900) gsm/gprs class 12-compliant transmit m odule with four transmit/receive ports for umts use that also serve as gsm rx ports. this transmit module builds upon rfmd's leading powerstar? integrated po wer 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/eg sm900/dcs1800/pcs1900/umts handset and eliminates the need for a pa-to-antenn a switch module matching network. the device provides 50 ? matched input and output ports requiring no external match- ing components. the RF3237 features rfmd's latest integrated power-flattening circuit, which signif- icantly reduces current and power variatio n into load mismatch. additionally, a v batt tracking feature is incorporated to maintain switching performance as supply voltage decreases. the RF3237 also integrates an esd filter to provide excellent esd protection at the antenna port. features ? high efficiency at rated p out v batt = 3.5v 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 ? four high linearity trx ports ? high trx to trx isolation ? 0dbm to 6dbm drive level, >50db of dynamic range applications ? single and dual band umts handsets and connected devices including tdscdma and cdma ? gsm850/egsm900/dcs1800/ pcs1900 products ? 3v multimode mobile applications ? gprs class 12 compliant ds120104 ? package: module, 30-pin, 6mm x 6mm x 1mm RF3237quad- band gsm/gprs tx module with umts trans- mit/receive ports
2 of 2 RF3237 ds120104 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . please contact rfmd technical support at (336) 678-5570 for more information.
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