6 C5 4.7uF/0402 C0402 MIC_BIAS R E Z Z U B 1 _ 1 P / I O X _ K 2 3 X _ K 2 3 0 _ 1 P C C V O X I X 3 3 2 3 1 3 0 3 9 2 8 2 7 2 6 2 5 2 5 4 C1 22uF C20 100nF VCC R 0 1 5 2 R ºìÍâ·¢Éä¾àÀë D1 SFH-4045N C2 4.7uF/0402 C0402 1 2 3 4 5 6 7 8 MIC+ MIC- P2_0/MIC+ P2_1/MIC- P2_4/IR_LED P2_5/IR_LEN_DAT VDD_1V2 RFIO VDD_1V2 RF VREF P2_0 P2_1 P2_4 P2_5 VD12_PA RFIO VD12_RTX D N G T A B V I S A B _ C M I I X O X 1 _ 1 P 0 _ 1 P I O X _ K 2 3 X _ K 2 3 U1 RTL8762AR N Y S _ 2 1 D V 0 _ 3 P 1 _ 3 P 2 _ 3 P 2 _ 0 P 3 _ 0 P N _ T S R _ W H I O D D V HGD LX HVD VDD_CORE P4_3 P4_2 P4_1 P4_0 24 23 22 21 20 19 18 17 LX VCC VDD_1V2 P4_3 P4_2 P4_1 P4_0 P2_4/IR_LED 1 R2 2.2k R24 20k R0402 3 Q1 2 R6 1K 1 2 Q3 MMBT3906 PNP 3 R18 0R 1 ºìÍâ½ÓÊÕ·Å´ó R19 1K C13 100nF C0402 KP2 KP6 KP10 KP14 XI 1 C18 15pF 40MHz 12pF 3 Y2 2 4 KP3 KP7 KP11 KP15 9 0 1 1 1 2 1 3 1 4 1 5 1 6 1 P3_0/P3_1: RF Test UART½Ó¿Ú 2 V 1 _ D D V X T T R A U 0 _ 3 P X R T R A U 1 _ 3 P / / 2 _ 3 P 2 _ 0 P C C V N _ T S R _ W H T U O G O L 3 _ 0 P / KP1 KP5 KP9 KP13 P3_0/UARTTX P3_1/UARTRX P3_2 P0_2 P4_0 P4_1 P4_2 P4_3 IR XO 32K_XI 32K_XO RF 32.768kHz 9pF RFIO L1 2.7nH C19 15pF 12pF/NC C17 Y1 if 32.768KHz xtal CL£¾9pF it need external CL cap 12pF/NC C16 C22 NC C0402 R5 0R R0402 C7 1pF C0402 KP4 KP8 KP12 KP16 P1_1/BUZZER VCC Buzzer MIC P2_1/MIC- P2_0/MIC+ MIC_BIAS C6 1pF C0402 MMBT3906 PNP Q2 R17 R0402 5.1R R4 R0402 1.5K R8 2.2k R0402 R23 20k R0402 C4 C0402 1uF C3 C0402 1uF R3 1.5K DRAWN: CHECKED: QUALITY CONTROL: RELEASED: D C B A 3 2 1 REVISION RECORD LTR ECO NO: APPROVED: DATE: R21 R0402 4.7k P2_5/IR_LEN_DAT P0_3:LOG Output 1K R1 3 Q4 2 ANT 1 2 1 2 1 2 J4 1 2 J3 P0_3/LOGOUT SWDIO R7 R0402 10K C23 100nF C0402 VCC HW_RST_N ST_Link 1 2 3 4 1 2 3 4 J6 3 2 1 J5 VCC P1_1/BUZZER P1_0 P3_0/UARTTX P3_1/UARTRX 1 ANT-S C21 NC C0402 Reset (Debug) UART (SW Download) D2 ESD3V3Y1 1 2 J1 BAT+ J2 BAT- 1 1 1 1 C25 10uF C14 4.7uF C15 10uF VCC 2 BZ1 SQMS8504S2536A 1 VCC LX L2 4.7uH PIN6 PIN8 PIN9 PIN21 VDD_1V2 C12 10uF C0603 C8 100nF C0402 C9 100nF C0402 C10 100nF C0402 C11 100nF C0402 À¶ÑÀÓïÒôÒ£¿ØÆ÷ 2 1 - + U2 MICO Power COMPANY: TITLE: DATED: DATED: DATED: DATED: CODE: SCALE: SIZE: B DRAWING NO: 1 SHEET: OF 1 REV: 1.0 D C B A