5 4 3 2 1 TP4 1 1 C167 10pF/50V 0603C RF J16 ANT 3 2 VCC3.3V FB3 BT_3V3 BT_WAKE BT_HOST_WAKE BLM18SG331TN1 0603R C162 1uF/16V 0603C C171 0.1uF/50V 0603C BT_3V3 0 6 0 3 R R 2 4 2 4 . / 7 K 1 % 0 6 0 3 R BT-UART-RTS UART7_RX UART7_TX BT-UART-CTS R223 22R/5% 0603R R226 22R/5% 0603R 0603R R230 22R/5% R236 22R/5% 0603R BT_3V3 R217 4.7K/1% 0603R BT_RST# U24 4 4 3 4 2 4 1 4 0 4 9 3 8 3 7 3 6 3 5 3 4 3 GND WiFi/BT_ANT GND FM_RX NC1 1 2 3 4 5 6 7 BT_WAKE BT_HOST_WAKE 8 CLK_REQ 9 VABT 10 XTAL_IN 11 XTAL_OUT RF BT_OSC_IN BT_OSC_OUT R 2 4 1 4 . / 7 K 1 % I N _ T R A U N _ S T C _ T R A U T U O _ T R A U N _ S T R _ T R A U 6 C N 5 C N D N G 7 C N I 1 O P G 2 O P G I N _ T S R _ T B AP6212A E K A W _ T S O H _ L W N O _ G E R _ L W D M C _ O D S K L C _ O D S I I 0 D _ O D S 1 D _ O D S I I 2 D _ O D S 3 D _ O D S I I D N G T U O _ O D L _ N V I I O _ D D V 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 0 2 1 2 2 2 C164 22pF/50V 0603C BT_OSC_IN 3 4 2 X5 26MHz XDL-3225 BT_OSC_OUT 1 C163 22pF/50V 0603C PCM Uart IN/OUT Need Cross GND NC4 GND NC3 NC2 PCM_SYNC PCM_IN PCM_CLK PCM_OUT LPO VIN_LDO 33 32 31 30 29 28 27 26 25 24 23 BT_3V3 C144 0.1uF/50V 0603C C142 10uF/16V 0805C WL_REG_ON WL-WAKE-HOST SDMMC1_D2 SDMMC1_D3 SDMMC1_CMD SDMMC1_CK SDMMC1_D0 SDMMC1_D1 BT_3V3 0 6 0 3 R R 2 3 7 4 . / 7 K 1 % 0 6 0 3 R R 2 2 7 4 . / 7 K 1 % R 2 2 4 4 . / 7 K 1 % 0 6 0 3 R 0 6 0 3 R R 2 2 2 4 . / 7 K 1 % 0 6 0 3 R 0 6 0 3 R R 2 1 8 4 . / 7 K 1 % FB2 BLM18SG331TN1 0603R C137 10uF/16V 0805C C138 0.1uF/50V 0603C R 2 1 6 4 . / 7 K 1 % 0 6 0 3 R R 2 3 1 4 . / 7 K 1 % D C B A C B A