1 2 3 4 5 6 FM1 1 1 R1 FM FM2 A 0ohm Y1 EPCOS B3588 3 4 3 4 1 1 C27 GND 2 1 100pF 5 1 GND 6 R3 5 GND 0ohm 6 C129 DNI 915.00MHz GND GND 0896BM15A0001 C21 LNA_VREF DNI GND 6 1 5 2 4 3 GND A PA_IN RF1126 GND GND GND 6 GNDGND 5 BP 4 FM C20 DNI U4 GND UP 2 3 BP 1 1 1 GND 2 FM FM3 U3 PA_VREG GND GND C12 1uF C2 62pF C24 VDDRF C141 VDD GND GND GND GND 100nF C U1 1 SCLK GND C81 GND GND 27 28 GND 29 LNA_OUT 31 30 GND LNA_VCC GND GND J2 ANT2 0.2pF 23 L3 22 21 VTX2 GND 20 19 C25 6.8nH 3.6pF C17 3.6pF VTX1 GND 17 GND VDDRF C4 10uF C3 0.1uF 18 GND GND GND C GND C5 GND 1 3 5 7 9 11 13 15 17 19 2 4 6 8 10 12 14 16 18 20 1 3 5 7 9 11 13 15 17 19 LNA_VREF VRX1 VTX2 GND 2 4 6 8 10 12 14 16 18 20 68pF 62pF GND C6 0.1uF DNI GND VDDRF GND VDDRF C13 1nF P2 HDR_2X10 GND GDO0 VRX2 CSn SCLK SI SO FAMILY P/N: 2 3858 Eval Schem. 7628 Thorndike Road Greensboro, NC 27409 Phone: 336-664-1233 HDR_2X10 GND DATE: 3 D 3858 TITLE: 04/27/11 1 VRX1 24 GND 0ohm P1 C14 1uF U5 2.85V 6 5 4 R4 C22 DNI VTX1 PA_IN C8 GND 1 1 6 2 2 5 3 3 GND 100nF TPS727285DSE D GND B GND PA_VREG VDD 1Kohms C1 1uF PA_OUT C7 GND L1 VDDRF Ferrite Bead (Wuerth Elektronik) GND GNDGNDGND C51 GND 100nF GND GND C26 PA_IN 12pFGND 4 C41 PA_VCC1 25 GND VRX2 GND GND GDO0 PA_VCC2 PA_VREG GND VTX2 GND PA_BIAS GND SCLK SO LNA_SEL VDD 6.8nH C23 C15 3.6pF 3.6pF 16 6 GDO0(ATEST) 10 GND DF GND 15 SI X1 26.0MHz (NX3225GA) CSn VTX1 14 11 12 AVDD RF_N RF_P 13 14 CSn C191 100nF 9 ANT1 TX_SWITCH 13 20 GND 7 DNI GND 8 C9 GND 68pF GND C10 0.1uF VRX1 ANT2 12 SI XOSC_Q1 C11 10uF U2 RF3858 26 VRX2 RX_SWITCH 11 GND DGUARD 8 7 GND 15pFGND 6 GND VDDRF C19 DCOUPL 19 4.7nH (W/W Coilcraft 0402) LNA_SEL 5 C181 100nF 10 VDD 5 C18 DNI C101 9 4 C16 1.5pF L5 0ohm AVDD DVDD 18 R5 CC1101 4 56K GND VDD RBIAS GD02 17 3 GND GND XOSC_Q2 SO(GDO1) R171 GND 2 16 AVDD AVDD 15 LNA_SEL GND 3 LNA_VREG GND 2 LNA_VREF GND 100nF GND LNA_IN GND GND 100nF 1 GND 32 0ohm VDD C111 J1 ANT1 0.2pF L2 R2 C151 VDD B GND 4 5 DRAWN BY: Michael Coolen PCB PART NUMBER: 3858-411 REV: DOC NO: 3858-401 SIZE: B PAGE: 1 of 1 6 A