BC5蓝牙立体声耳机原理图

BC5蓝牙立体声耳机原理图1

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3 VBAT C1 2.2uF C2VBUS C3 1.5V R3 2R2 4.7uF 2.2uF R1 10K 10uH C9 22NF 1.8V L1 35PWR

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VBAT S5 NEXT TRACK

VBAT

C4 1.5V A C10 15pF 1.5V 15pF 2.2uF

1.5V-AUDIO R2 C6 22nF 2R2

C5 C7 2.2uF 6.8P 4 3 TX1 16M 18P C11 XTAL-IN XTAL-OUT LED(1) LED(0) PIO(14) PIO(13) PIO(12) PIO(11) PIO(9) PIO(8) PIO(7) PIO(6) PIO(5) PIO(4) PIO(3) PIO(2) PIO(1) PIO(0) SPI-CLK SPI-MISO SPI-MOSI UART-TX UART-TX UART-RX UART-CTS UART-RTS AIO(0) AIO(1) LO-REF TEST-EN RST# 3 4 33 32 S1 20 R6 10K 1.8V 19 NEXT TRACK 18 R7 10K S2 VOL15 S3 VOL+ R11 10K 14 21 22 WP 23 SDA 24 SDL 25 AMP-EN 58 59 60 61 29 31 28 30 9 10 11 12 7 6 5 27 26 10K S4 R12 LAST TRACK SPI-CLK SPI-MISO SPI-MOSI SPI-CS# UART-TX UART-RX 1.8V LED2 BLUE LED1 RED A

C8

1.8V 1.8V 68 46 47

1.8V 1.8V 1.8V 1 2 62 13 16

R5 47R

R4 330R

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