5 4 3 2 1 RF LED D C B A R6 10Kohm Thermistor E1 Antenna Matching ANTENNA C242 NC C216 0ohm C215 NC C4 NC RF Circuit RF_IN matching circuit here is 1 PF_TEST1 TP VDD33 C226 100nF I N _ F R 1 H C U O T 1 2 H C U O T 1 X T _ T R A U X R _ T R A U I 2 O P G I 4 O P G I 5 O P G 4 4 3 4 2 4 1 4 0 4 9 3 8 3 7 3 I 0 O P G 1 O P G 2 O P G 3 O P G 4 O P G 5 O P G I I I I I I N _ F R T B T B V _ D D V A 5 4 D N G U9 1 2 3 4 5 6 7 8 9 10 11 12 13 14 AVDD_BTRF XTAL_IN1 XTAL_IN2 SYSRSTB AVDD_DCXO/VRF VCORE_FB/VCORE REGEN VIO_FB VDIG18 RTC_GPIO0 RTC_GPIO1 ISINK0 ISINK1 VIO_LX GPIO6 GPIO7 DVDD_IO VCORE UART_TRX AVDD18_AUD_DRV AU_HP_RN AU_HP_RP AU_MICBIAS0 AVDD18_AUD VDD33 AU_VIN0_N AU_VIN0_P AU_VIN1_P 1562A T R A U _ S U B V I 1 S A B C M _ U A I I N _ 1 N V _ U A S Y S V T A B V S U B V F E R V X L _ E R O C V 5 1 6 1 7 1 8 1 9 1 0 2 1 2 2 2 P T A B S U B V S Y S V C220 10uF C201 1uF I 1 S A B _ C M I I N _ 1 N V _ U A F E R V C214 1uF T R A U _ S U B V C3 1uF C235 1uF C236 2.2 uF X L _ E R O C V L14 1uH C208 10uF BUCK_VCORE 4 3 NC X5001 HOT2 GND HOT X / 26 / MHz / 8Q26000008 1 2 XTAL_IN1 XTAL_IN2 LDO_VRF BUCK_VCORE LDO_VRF C204 1uF NC C222 C225 12pF C234 NC XTAL_IN1 XTAL_IN2 C7 1uF VDIG18 BUCK_IO RTC_GPIO0 BUCK_IO L4 1uH C202 22uF Note: 1 LED0 VIO_LX Note: 1 R19 0ohm VBUS_UART Charger J1 1 Charger_PAD J3 1 Charger_PAD J2 1 J4 GND_PAD 1 GND_PAD LED2101 1 LED0 VSYS LED / Red / LED0402 / BL-HUB37A-AV-TRB 2 GPIO6 UART_TRX UART_TRX 36 35 34 33 32 31 30 29 28 27 26 25 24 23 BUCK_IO BUCK_VCORE BUCK_IO AU_HP_RN AU_HP_RP MIC_BIAS0 VDD33 AU_VIN0_N AU_VIN0_P AU_VIN1_P C224 1uF C19 1uF C233 1uF BUCK_IO C221 1uF C227 1uF FB_MIC_P C237 2.2uF TCB Connector UART_RX VBUS VBUS 1 UART_TX1/SPDIF UART_TX 1 UART_RX1 1 GND 1 UART_TX2 1 BAT 1 TOUCH 1 GPIO2 BATP RTC_GPIO0 FPC connector pad Use FPC change microphone & speaker position (Speaker & ANC FB MIC) U13 MIC_BIAS MIP+ GND SPK+ SPK- 1 2 3 4 5 MIC_BIAS1 FB_MIC_P R27 R26 0ohm 0ohm AU_HP_RP AU_HP_RN MEMS Microphone Use FPC change microphone position (ANC FF MIC/Voice MIC) U12 MIC_BIAS GND MIP 1 2 3 MEMS MIC_PAD C189 0.1uF MIC_BIAS0 R25 0ohm C229 NC C238 2.2uF C239 2.2uF AU_VIN0_P AU_VIN0_N D C B A 5 4 3 2 1