STEVAL-FKI433V2

STEVAL-FKI433V2 Data brief Sub-1GHz (430-470 MHz) transceiver development kit based on S2-LP Features S2-LP narrow band ultra-low power sub-1GHz transceiver in a standalone RF module tuned for 430-470 MHz frequency bands STM32 Nucleo-64 development board with STM32L0 MCU Suitable for wireless M-Bus systems Associated S2-LP development kit including, documentation, firmware for STM32L and GUI Programmable RF output power up to +16 dBm Modulation schemes: 2-FSK, 2-GFSK, 4-FSK, 4-GFSK, OOK, and ASK Air data rate from 0.3 to 500 kbps Ultra-low power consumption: 6.7 mA RX 10 mA TX at +10 dBm Excellent performance of receiver sensitivity (up to -130 dBm) Low duty cycle RX/TX operation mode Automatic acknowledgement, retransmission and timeout protocol engine SPI interface for microcontroller USB interface RoHS compliant Description Product summary The STEVAL-FKI433V2 evaluation board is based on the S2-LP sub-1GHz ultra-low power low data-rate transceiver suitable for ISM bands and wireless M-Bus. Sub-1GHz (430-470 STEVAL-FKI433V2 MHz) transceiver The NUCLEO-L053R8 motherboard is equipped with an STM32L0 low power development kit microcontroller to control the S2-LP. based on S2-LP The board integrates a ST-LINK/V2-1 debugger/programmer for firmware updating. STM32 Nucleo-64 NUCLEO-L053R8 development board with STM32L053R8 MCU Ultra-low power, S2-LP high performance, sub-1GHz transceiver STM32L0 series of STM32L0 ultra-low-power MCUs ST-LINK/V2 in- ST-LINK/V2 circuit debugger/ programmer for STM8 and STM32 DB3551 - Rev 3 - April 2018 www.st.com For further information contact your local STMicroelectronics sales office.VDD VDD VDD VDD VVDDDDSSMMPPSS VDDVCOTX VDDRXDIG VDDANASYNTH C1 C33 C3 C4 C5 C6 C7 C8 3V3 C2 100pF 100pF 150nF 150nF 100pF 4.7F 150nF 150nF 100pF R1 R2 100K 100K U1 1 8 nS nS Vcc CN1 SDO 2 7 Q nHOLD 3 6 SCLK C9 nW C 4 5 100nF SDI Vss D 10 9 M95640 R19 8 VSMPS2 150nF 7 R3 R6 NM SCLK C10 NM 100K 6 R4 0R SDO 5 R5 SDI 4 R9 0R CSN 3 R27 NM D9 2 C11 R7 0R nS 1 100pF 0R Header 10X1 Female U2 1.4 V to 1.8 V max C32 Vsmps ext C12 1F 150nF VDDSMPS 1 18 SCLK CN2 R20 L1 L2 10uH C13 VDDSMPS SCLK 2 17 SDI 4.7pF SMPS1 SDI C14 27nH 0R 0R 3 16 SDO R10 SDN NM SMPS2 SDO 8 XOUT 4 15VDDRXDIG XOUT VDDRXDIG C16 J1 L3 R21 7 0R XIN 5 14 100pF 56nH XIN RXP C15 6 6 13 L4 SDN RXN C17 1.2pF 5 0R 100pF R11 SCLK SMA RF Connectors 4 VSMPS2 3 27nH 100pF C18 C38 2 S2-LP 4.7pF NM 1 L5 VDDANASYNTH C21 VDD R17 Header 8X1 Female 100pF C22 NM C23 150nF VDD VRSYNTH 100pF R22 CN3 Y1 C36 R29 NM L7 4 3 VSMPS2 1 C19 Jumper 0R C25 27nH 0 Ohm 2 VDD 12 pF C37 1 2 470pF C35 3V3 C34 3 100pF NM 1 2 150nF 4 1 2 XTAL 50 MHz 5 C24 1.8 pF 6 JP1 7 8 2.7nH 30nH 22nH Header 8X1 Female L8 L9 L10 XIN C20 C27 C28 C29 12 pF C26 TCXO EN 3.3pF 6.8 pF 8.2 pF NM L6 0R CN4 R30 R18 VSMPS2 VRSYNTH 0R R12 GPIO0 NM 10R 1 CN5 VDD R13 C30 C31 CSN 2 150nF 100pF R14 0R GPIO1 1 3 0R TCXO EN R15 GPIO2 2 4 D9 3 0R 5 R16 GPIO3 6 Enable TCXO 0R Header 6X1 Female STEVAL-FKI433V2 Schematic diagram 1 Schematic diagram Figure 1. STEVAL-FKI433V2 circuit schematic R24 R26 NM NM R23 R25 0R 0R R28 NM XIN XOUT SDN 7 24 VDDANASYNTH VRDIG VRSYNTH 8 23 GPIO3 VRSYNTH GPIO3 9 22 GPIO2 VREFVCO GPIO2 VDDVCOTX 10 21 GPIO1 VDDVCOTX GPIO1 11 20 GPIO0 TX GPIO0 12 19 CSN VRRF CSN 25 GND DB3551 - Rev 3 page 2/4