Specifications

2 Pin Definitions 3
CW6631B Bluetooth Audio Player Microcontroller Version 1.0.0
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Pin No.SSOP28 Name Type Function
SDCLK
EMIDAT1
LCD_D1
2 MICN A MIC Negative input
3 MICP/VCM A
MIC Positive input
DAC VCM output
4 AVSS GND Analog GND
5 VDDHP PWR Headphone power
6 DACR A
DAC right output
GPIO input
7 P01/VCM_BUF I/O
GPIO
AUXR0
UARTTX1
PORT INT/WKUP0
SDDAT2
DAC VCM buffer
8 P00 I/O
GPIO
AUXL0
UARTRX1
SDDAT1
SPI0DIN2
9 P13 I/O
GPIO
ADC5
IISBCLK0
10 P31 I/O
GPIO
SDCMD
SPI0DIN3
11 P32 I/O
GPIO
SDDAT0
SPI0DOUT3/DIN3
12 P30 I/O
GPIO
ADC4
SDCLK
SPI0CLK3
13 P04 I/O
GPIO
SPI1DOUT/DIN1
14 P05 I/O
GPIO
SPI1CLK
15 P36 I/O GPIO
16
VCC_RF/VCC_PA/
PAD_VCC_IF
PWR
RF/PA Power VCC
Power VCC
17 RXTX A RF Rx and Tx pin