EVALUATION KIT AVAILABLE Click here for production status of specific part numbers. SC1905 698MHz to 3800MHz RF Power Amplifier Linearizer (RFPAL) General Description Benefits and Features The SC1905 is a pin-compatible upgrade of the popular RFin/RFout PA Linearizer SoC in Standard CMOS SC1894 RF PA linearizer (RFPAL) supporting signal Fully Adaptive Correction bandwidths up to 100MHz. The SC1905 is a fully adaptive, External Reference Clock Support: RFin/RFout predistortion linearization solution optimized 10MHz, 13MHz, 15.36MHz, 19.2MHz, 20MHz, for a wide range of amplifiers, power levels, and communi- 26MHz, and 30.72MHz cation protocols. The SC1905 uses the PA output and in- Low Power Consumption: 1280mW put signals to adaptively generate an optimized correction Frequency Range: 698MHz to 3800MHz function in order to minimize the PAs self-generated dis- Input Signal Bandwidth: 5MHz to 100MHz tortion and impairments. Using RF-domain analog signal Packaged in 9mm x 9mm QFN Package processing enables the SC1905 to operate over wide-sig- Operating Case Temperature: -40C to +105C nal bandwidths and consume very low power. Fully RoHS Compliant, Green Materials Design support features are accessed through the Ease of Use SC1905s serial peripheral interface (SPI) bus. Integrated RFin/RFout Solution Reduced SW Development Applications Reduces System Power Consumption and OPEX 4G and 5G Cellular Infrastructure Reduces BOM Costs, Area, and Total Volume Single/Multicarrier, Multistandard: WCDMA, LTE, Smaller Power Supply, Heat Sink, and Enclosure and TD-LTE 2 Small Implementation Size (< 6.5cm ) BTS Amplifiers, RRH, Booster Amplifiers, Repeaters, Small Cells, Microcells, Picocells, DAS, Ordering Information appears at end of data sheet. AAS, and MIMO Systems Wide Range of PAs and Output Power Amplifier: Class A/AB and Doherty PA Process: LDMOS, GaN, GaAs, and InGaP Any Application Requiring PA Linearization 19-100404 Rev 2 11/19SC1905 698MHz to 3800MHz RF Power Amplifier Linearizer (RFPAL) Typical Application Circuit V DD ANTENNA NO DELAY TO FEEDBACK CORRECTION INPUT COUPLER 6NS COUPLER COUPLER CIRCULATOR/ DELAY FILTER/ RFIN PA DUPLEXER CPL CPL IN OUT RFOUT SC1905 RECEIVER RFPAL RFINPRFINP RFOUTPRFOUTP BALUN BALUN RFINNRFINN RFOUTNRFOUTN EXT. CLOCK XTALIXTALI XTALOXTALO RFFBPRFFBP RFFB BALUN ATTENUATOR OPTIONAL CRYSTAL RFFBNRFFBN 1.8V1.8V 3.3V3.3V DI/ODI/O SPISPI REGULATOR SERIAL OPTIONAL INTERFACE DIGITAL I/OS SUPPLY 19-100404 www.maximintegrated.com Maxim Integrated 2