Specifications

4 2.1 CW6631B
CW6631B Bluetooth Audio Player Microcontroller Version 1.0.0
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Pin No.SSOP28 Name Type Function
18 GND_ANT1 GND RF GND
19
VCC_XO/ PAD_VDDQ/
VCC_VCO
PWR Power VCC/VDDQ
20 XO_P A BT 26MHz XOSC Positive Pin
21 XO_N A BT 26MHz XOSC Negative Pin
22 BVIN PWR PMU Power input Pin 4.2V(typ)
23 VOUT1V5 PWR VOUT 1.5V
24 VDDLDO PWR LDO power input 4.2V(typ)
25 VDDIO/AVDD PWR Power output VDDIO 3.3V
26 USBDM I/O USB Negative Input/output
27 USBDP I/O USB Positive Input/output
28 P20 I/O
GPIO
AUXL2
SDCMD
EMIDAT0
LCD_D0