STEVAL-FKI433V1 STMicroelectronics

S T E VA L - F K I 4 3 3 V 1 Sub-1 GHz transceiver development kit based on S2-LP Data brief RoHS compliant Description The STEVAL-FKI433V1 evaluation board is based on the S2-LP sub-1 GHz ultra-low power, low data-rate transceiver suitable for ISM bands and Wireless M-Bus. The motherboard is the NUCLEO-L152RE board with STM32L low power microcontroller to control the S2-LP device and integrated ST-LINK/V2-1 debugger and programmer for firmware updating. Features S2-LP narrow band ultra-low power sub-1 GHz transceiver in a standalone RF Module tuned for 430 - 470 MHz frequency bands STM32 Nucleo 64 development board with STM32L152RE 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 +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 November 2016 DocID030013 Rev 1 1/4 www.st.com For further information contact your local STMicroelectronics sales office Schematic diagram STEVAL-FKI433V1 1 Schematic diagram Figure 1: STEVAL-FKI433V1 circuit schematic GSPG1111161130 2/4 DocID030013 Rev 1 VDD VDD VDD VDD VVDDDDSSMMPPSS VDDVCOTX VDDANASYNTH VDDRXDIG C1 C 100p 0402 C3 C2 C7 C5 C4 C6 C8 C 150n 0402 C33 C 100p 0402 C 470n 0402 C 100p 0402 C 100p 0402 C 470n 0402 C 470n 0402 3V3 R1 R2 R 100k 0402 R 100k 0402 U1 CN1 1 8 nS nS Vcc 2 7 SDO 10 Q nHOLD 3 6 SCLK C9 9 nW C C 100n 0402 4 5 SDI 8 R19 NM Vss D VSMPS2 7 R6 NM C 470n 0402 C10 6 SCLK M95640 5 R4 0 SDO R3 4 SDI R 100k 0402 3 R5 0 CSN 2 R9 NM 1 nS C11 C 100p 0402 R7 0 CON10 C12 U2 C 150n 0402 C 1u 0603 Vsmps ext C TBD 0402 C13 C32 L2 VDDSMPS 1 18 SCLK L1 CN2 VDDSMPS SCLK 2 17 SDI L3 L TBD 0402 SMPS1 SDI C14 C TBD 0402 R10 0 3 16 SDO L TBD 0402 L 10U 0805 8 SDN SMPS2 SDO R20 NM 4 15VDDRXDIG C16 7 R21 XOUT VDDRXDIG 5 14 C15 Y1 L4 RF IN/OUT 6 XIN RXP 0 ohm SDN 6 13 C TBD 0402 1.4 V to 1.8 V max L TBD 0402 5 SDN RXN R11 0 C TBD 0402 J1 4 SCLK 3 VSMPS2 S2-LP C17 C18 2 C TBD 0402 C TBD 0402 1 C21 C19 L5 C20 L TBD 0402 XTAL VDDANASYNTH C TBD 0402 C 12p 0402 C 12p 0402 CON8 R17 NM C22 C23 L6 R22 VDD C 150n 0402 C 100p 0402 L TBD 0402 CN3 L7 VSMPS2 1 NM C25 2 Jumper2 L TBD 0603 C34 VDD 3 3V3 C 470p 0402 C35 4 1 2 C 150n 0402 C 100p 0402 C TBD 0402 1 2 5 6 7 JP1 8 C24 L9 L10 L8 CON8 L TBD 0402 L TBD 0402 L TBD 0402 C29 C26 C27 C28 C TBD 0402 C TBD 0402 C TBD 0402 C TBD 0402 R18 NM CN4 VSMPS2 VRSYNTH R12 0 1 GPIO0 C30 C31 2 CSN C 100p 0402 R14 0 C 470n 0402 3 GPIO1 R13 0 4 GPIO2 5 R15 0 6 GPIO3 R16 0 CON6 C 4.7U 0603 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