STEVAL-IKR002V4B STMicroelectronics

STEVAL-IKR002V4B SPIRIT1 - low data rate transceiver - 868 MHz - daughterboard integrated balun Data brief Description The STEVAL-IKR002V4B evaluation daughterboard is based on the SPIRIT1, a sub- GHz low power, low data rate transceiver suitable for ISM bands and wireless M-BUS. The board is equipped with external balun, matching and filter in a single BALF-SPI-01D3 device which optimizes size, RF performances and number of external RF components (from 16 SMD passive components to just 1). Features SPIRIT1 low power, sub-GHz transceiver in a standalone RF module tuned for the 868/915 MHz bands External balun + matching + filter in a single component: BALF-SPI-01D3 Suitable for wireless M-BUS systems Associated SPIRIT1 development kit includes documentation, firmware for STM32L and GUI Modulation schemes: 2-FSK, GFSK, MSK, GMSK, OOK, and ASK Air data rate from 1 to 500 kbps Very low power consumption (9 mA RX and 21 mA TX at +11 dBm) Excellent performance of receiver sensitivity (up to -120 dBm) Low duty cycle RX/TX operation mode Automatic acknowledgment, retransmission, and timeout protocol engine AES 128-bit encryption co-processor SPI interface for microcontroller RoHS compliant April 2014 DocID025769 Rev 2 1/4 For further information contact your local STMicroelectronics sales office. www.st.comSchematic diagram STEVAL-IKR002V4B 1 Schematic diagram Figure 1. STEVAL-IKR002V4B circuit schematic GSPG0310DI1110 2/4 DocID025769 Rev 2 3V3 VCC RF nS 3V3 1 2 1 2 CC2200 CC2211 UU22 JJuummppeerr CC 11UU 00660033 XX77RR CC 110000pp 00440022 CC00GG RR1133 RR1144 RR 110000kk 00440022 JJ66 RR 110000kk 00440022 HHEEAADDEERR 55XX22 UU33 nS 1 8 nS Vcc SDO 2 7 Q nHOLD SCLK CC2233 3 6 nW C SDI CC 110000nn 00440022 XX77RR 4 5 SDn Vss D MM9955664400 RR1122 CC2222 RR 110000kk 00440022 CC00 SPIRIT DUMMY3 CC 333300pp 00440022 CC00GG CC 110000nn 00440022 XX77RR SPIRIT DUMMY1 GPIO3 GPIO2 GPIO1 UU11 GPIO0 1 15 GPIO 0 SDn LL88 LL77 2 14 SDO SMPS1 LL 1100UU 00880055 LL TTBBDD 00440022 JJ77 3 13 CC1111 CC1122 SDI SMPS2 CC1133 HHEEAADDEERR 55XX22 CC 11UU 00660033 XX77RR CC 110000nn 00440022 XX77RR CC TTBBDD 00440022 XX77RR 4 12 SCLK TX 5 11 CSn REXT 2 1 VCC RF 3 SDO SDI DD00 CC1166 21 SCLK SSPPIIRRIITT11 CC 110000nn 00440022 XX77RR CCxx CSn CC 222200pp 00440022 CC00GG NX3225GA-xxMHz (XTAL) YY11 XXTTAALL CC99 VCC RF CC 1122PP 00440022 CC00GG CC1100 CC 1100PP 00440022 CC00GG BBAALLFF--SSPPII--0011DD33 BBAALL CC1199 CC TTBBDD 00440022 CC00GG RR66 RR99 B0=169MHz B3=868/915MHz RR 00RR00 00440022 RR 00RR00 00440022 RR77 B1=315MHz Mount resistor RRFF IINN//OOUUTT relative to RR 00RR00 00440022 used band JJ11 RR88 B2=433MHz RR 00RR00 00440022 1 2 3 4 1 2 5 6 3 4 7 8 5 6 9 10 7 8 9 10 6 20 XOUT GPIO 1 7 19 XIN GPIO 2 8 18 VBAT2 GPIO 3 9 17 RXP VREG 10 16 RXN VBAT1 GND A1 A2 GND2 RX P B1 B2 ANT RX N C1 C2 GND1 TX