STEVAL-FKIV Sub-GHz transceiver development kit based on S-LP Data brief Features S-LP narrow band ultra-low power Sub- GHz transceiver in a standalone RF Module tuned for 0-0 MHz frequency bands with external power amplifier STM Nucleo- development board with STMLRE MCU Suitable for Wireless M-Bus systems Suitable for SigFox applications Associated S-LP development kit including, documentation, firmware for STML and GUI Programmable RF output power up to + dbm Modulation schemes: -FSK, -GFSK, - FSK, -GFSK, OOK, and ASK Air data rate from 0. to 00 kbps Excellent performance of receiver sensitivity (up to -0 dbm) Low duty cycle RX/TX operation mode Automatic acknowledgement, retransmission, and timeout protocol engine SPI interface for microcontroller USB interface RoHS compliant Description The STEVAL-FKIV evaluation board is based on the S-LP sub-ghz ultra-low power low data-rate transceiver suitable for ISM bands and Wireless M-Bus. The NUCLEO-LRE main board with an STML low power MCU controls the S-LP and integrates the ST-LINK/V- debugger and programmer for firmware updating. The STEVAL-FKIV includes an external power amplifier from SkyWorks, which allows the application to reach + dbm (00 mw) output power. January 0 DocID00 Rev / For further information contact your local STMicroelectronics sales office www.st.com
VIN V V RESET IOREF D D D D D D D D0 D D AREF D D D D0 D D A A A A A A0 J J J Header X_Female Header X_Female J 0 Header 0 X_Female Header X_Female VDD A STM_NRST Arduino Connector JP Closed (-V) SYSDCIN V V C R R 0R R 0R R R 0R R 0R R 0R R 0R R 0R R 0R V uf CSN 0 C 0nF VDD SMPS SMPS SMPS SDN CSN SCLK SDI SDO GPIO GPIO GPIO GPIO0 SCLK SDI SDO C 00pF TX RF_P RF_N XIN XOU T IC VCC /HO LD C /W D Q /S IC RF IC M0 -RMC X 0MHz L 0R L nh L nh L nh C FLT R 0R R k R R PAIN TXFLT TR CSD CPS CTX AN TSEL SEL C 00pF L L nh U AN T AN T PAOU T TXIN LNAIN RXFLT 0 R 0R FLT L nh L nh L nh L nh AN T AN T J J L nh L nh AN T AN T Schematic diagram STEVAL-FKIV Schematic diagram Figure : STEVAL-FKIV circuit schematic nh C nh C0 VSMPS C uf C 0nF L 0R V C 0nF L0 0uH C 00pF C 0nF C 0nF C 0nF C 00pF C 00pF C 00pF C 00pF C 0pF C 00pF C0 0nF C0 0nF C pf L nh C pf VSMPS L nh L nh C 00pF C 00pF C C pf pf C 00pF C0 00pF R MN C pf L C pf 00pF nf C uf C pf C pf C pf C C C pf V C pf VDD ASYN TH VRSYNTH VDDVCOTX VDDRXDIG 0 VRDIG VREFVCO VRRF VCC0 0 VCC VCC R0 0R R 0R P Header ns R 00k GPIO0 GPIO V R 00k GPIO V R 00k C 00pF C V C 00nF C 0nF C pf R 0k C pf C pf L nh R k R R0 k k C pf CSD CPS CTX P Ext_Pwr V EXT_V P PA_PWR GSPG0SG / DocID00 Rev
STEVAL-FKIV Revision history Table : Document revision history Date Version Changes -Dec-0 Initial release. -Jan-0 Updated board photo on the cover page. Revision history DocID00 Rev /
STEVAL-FKIV IMPORTANT NOTICE PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries ( ST ) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. 0 STMicroelectronics All rights reserved / DocID00 Rev
Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: STMicroelectronics: STEVAL-FKIV