R _0R 0_0402 R8 R _0R 0_0402 R7 R _0R 0_0402 R6 2 4 6 8 10 B2=433MHz B1=315MHz B0=169MHz SDO SDI SCLK CSn J7 HEADER 5X2 GPIO0 GPIO3 GPIO2 GPIO1 C 22 5 4 3 2 1 CSn SCLK SDI SDO GPIO_0 R _0R 0_0402 R 11 R _0R 0_0402 R 10 R _0R 0_0402 R9 Y1 XTAL B3=920MHz B3=915MHz B3=868MHz Mount resistor relative to used band C_12P_0402_C0G_J_50 C9 C0 SDn 11 12 13 14 C_TBD_0402_C0G C 19 L7 L_10U _0805 C_10P_0402_C0G_J_50 C 10 REXT TX SMPS2 SMPS1 15 C 21 C _100p_0402_C 0G C_100n_0402_X7R SPIRIT1_2 U1 C _330p_0402_C 0G NX3225GA-xxMHz (XTAL) SPIRIT_DUMMY1 DUMMY3 SDn 20 GPIO_1 XOUT 1 3 5 7 9 2 4 6 8 10 C 20 C_1U_0603_X7R_K_6V3 19 GPIO_2 XIN 7 J6 HEADER 5X2 VCC_RF 18 GPIO_3 VBAT2 8 VBAT1 SPIRIT_DUMMY2 17 VREG RXP 9 6 1 3 5 7 9 16 RXN 10 3V3 GND 21 L8 L1 L_TBD_0402 L5 L_TBD_0402 C4 C_TBD_0402_C0G L_TBD_0402 L4 C_TBD_0402_C0G C5 C_TBD_0402_C0G L_TBD_0402 L6 C6 C_TBD_0402_C0G C1 L_TBD_0402 L2 C 14 C_TBD_0402_C0G C7 C_TBD_0402_C0G C2 L3 L_TBD_0402 C_TBD_0402_C0G C8 C 13 C_TBD_0402_X7R C_TBD_0402_C0G C3 C_TBD_0402_C0G C 12 C_100n_0402_X7R L_TBD_0402 L9 C 11 C_1U_0603_X7R_K_6V3 R 13 R_TBD_0402 R 12 R_TBD_0402 L0 L_TBD_0402_50M C_TBD_0402_C0G C 15 L_TBD_0402 DUMMY3 3V3 J1 RF_IN/OUT STEVAL-IKR002V5D Schematic diagram AM17486v1