一个IPOD的蓝牙适配器原理图

SCT-BM701 发射原理图ANT1 2.5G-Ant J1 3.3V R in L in D1 LED-Blue 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 CON30 T33 3.3V T32 T31 T30 T29 SPI_CSB SPI_MISO SPI_CLK SPI_MOSI SPI_MOSI SPI_CLK SPI_CSB SPI_MISO J3 1 2 3 4 5 6 CON6*

U1 KB11R D

GND

IN

D

1

L1 ANT T1 GND GND T45 T44 C9 C

2.2nH

C10 0.5P Q1 3904 R3 10K R9 100K

2

T2 T3 T4 T5 C3 220pF R10 3K3 R11 3K3 C4 220pF C7 T8 R in R1 10K L in R2 10K C6 1uF T12 T13 iPodTx iPodRx B R6 R5 1K 1K T14 T15 T16 1uF C5 1uF C8 T10 1uF T11 T9 T6 T7

GND SPK_LN SPK_LP SPK_RN SPK_RP AIO(0) MIC_RN MIC_RP MIC_LN MIC_LP AIO(3) AIO(1) UART_RX UART_TX
PCM_OUT PCM_CLK

GND PIO0 PIO1 PIO11 PIO3 PIO10 KB11R PIO2 PIO8 PIO9 CSR_LRST CSR_HRST SPI_CSB SPI_MISO SPI_CLK
PCM_SYNC

T43 T42 T41 T40 T39 T38 T37 T36 T35 T34

R7 220

D2 MBR0540T1

iPo