XE1202AI027TRLF Semtech

XE1202A TrueRF IAIAmmpp QAQAmmpp SCANSCAN II LiLimmiitterer AMAMPP BPFBPF AMPAMP DCDCLKLK RFRFAA FSFSKK BiBitt LNLNAA DemDemood.d. SySync.nc. RFRFBB DATAOUDATAOUTT LiLimmiitterer QQ AMAMPP BPFBPF AMPAMP PatPattterernn PATPATTERNTERN RecRecogniognittiionon LOLO PhasPhasee RSSIRSSI FEFEII BufBufff.. ShiShifftteerr MODEMODE 0 0 MODEMODE 1 1 PrProg.og. MODEMODE 2 2 ConConttrrooll didivividerder LogiLogicc SISI SOSO mmodulodulaattoror PFPFDD SCSCKK //n Syn Syntnthesihesizzerer RFRFOOUTUT PAPA VCVCOO ENEN PORPOR /n/n I RI Reeff OOssccillaillattoorr ClClocockk Out Out DATAIDATAINN XE1202A TrueRF 433 MHz / 868 MHz / 915 MHz Low-Power, Integrated UHF Transceiver GENERAL DESCRIPTION KEY PRODUCT FEATURES The XE1202A TrueRF is a single chip transceiver Programmable RF output power: up to +15 dBm operating in the 433, 868 and 915 MHz license free High reception sensitivity: down to 116 dBm ISM (Industry Scientific and Medical) frequency Low power consumption: RX = 14 mA bands. Its highly integrated architecture allows for TX = 62mA 15 dBm output power minimum external components while maintaining Supply voltage down to 2.4 V design flexibility. All major RF communication Data rates from 4.8 kbits/s to 76.8 kbits/s, NRZ parameters are programmable and most of them can coding be dynamically set. The XE1202A TrueRF offers a Channel filter bandwidths from 20 kHz to 400 kHz wide range of channel bandwidths, without the need On-chip frequency synthesizer with minimum to modify the number or parameters of the external frequency resolution of 500 Hz components. The XE1202A TrueRF is optimized for Continuous phase 2-level FSK modulation low power consumption whilst offering high RF output Incoming data pattern recognition power and channelized operation suitable for both the Built-in Bit-Synchronizer for incoming data and clock European (ETSI-300-220) and the North American synchronization and recovery (FCC part 15) regulatory standards. RSSI (Received Signal Strength Indicator) and FEI (Frequency Error Indicator) ORDERING INFORMATION APPLICATIONS Part number Temperature range Package Security systems XE1202AI027TRLF -40 C to +85 C LQFP44 Voice and data over an RF link Process and building control Access control Home automation Home appliances interconnection Rev 1 January 2006 www.semtech.com VSSDVSSD VDDVDDDD VSSFVSSF VSSFVSSF VDVDDFDF VSSPVSSP VDDVDDPP VSSPVSSP TKATKA TKBTKB LFLFBB XTXTAA XTXTBB CLCLKKOOUTUT IAIAMMPP TVCOTVCO TSTSUUPPPP QAQAMPMP VSSAVSSA VDVDDD VSSAVSSA VVDDADDA VSSVSSXE1202A TrueRF TABLE OF CONTENTS 1 Functional Block Diagram....................................................................................................................... 4 2 Pin description......................................................................................................................................... 5 3 Electrical Characteristics ........................................................................................................................ 6 3.1 Absolute Maximum Operating Ranges.................................................................................................. 6 3.2 Specifications........................................................................................................................................ 6 3.2.1 Operating Range ....................................................................................................................................... 6 3.2.2 Electrical Specifications ............................................................................................................................. 6 4 Description............................................................................................................................................... 9 4.1 Detailed description .................................................................................................................................. 9 4.1.1 Receiver .................................................................................................................................................... 9 4.1.2 Receiver LNA modes .............................................................................................................................. 10 4.1.3 RSSI ........................................................................................................................................................ 11 4.1.4 Frequency Error Indicator - FEI................................................................................................................ 11 4.1.5 Transmitter............................................................................................................................................... 14 4.1.6 Pattern recognition................................................................................................................................... 15 4.1.7 Frequency synthesizer............................................................................................................................. 15 5 Serial Interface Definition, Principles of Operation............................................................................. 16 5.1 Serial Control Interface ............................................................................................................................ 16 5.1.1 General description.................................................................................................................................. 16 5.1.2 Write sequence........................................................................................................................................ 16 5.1.3 Read sequence........................................................................................................................................ 16 5.2 Configuration and Status registers ........................................................................................................... 17 5.2.1 RTParam configuration register ............................................................................................................... 17 5.2.2 FSParam configuration register ............................................................................................................... 19 5.2.3 DataOut register ...................................................................................................................................... 20 5.2.4 ADParam configuration register............................................................................................................... 20 5.2.5 Pattern register ........................................................................................................................................ 21 5.3 Operating Modes ................................................................................................................................ 23 5.4 Transmitted Data Interface ................................................................................................................. 25 5.5 Received Data Interface ..................................................................................................................... 25 5.6 Pattern Recognition Interface.............................................................................................................. 26 5.7 Clock Output Interface ........................................................................................................................ 26 5.8 Default settings at power-up ............................................................................................................... 26 6 Application Information......................................................................................................................... 27 6.1 Receiver matching network................................................................................................................. 27 6.2 Transmitter matching network ............................................................................................................ 27 6.3 VCO tank ............................................................................................................................................ 29 6.4 Loop filter of the frequency synthesizer............................................................................................... 30 6.5 Reference crystal for the frequency synthesizer .................................................................................30 7 Packaging information .......................................................................................................................... 32 Semtech 2006 www.semtech.com 3