Block Diagram

1
1
2
2
3
3
4
4
D D
C C
B B
A A
LEXON
Name:
DongGuan Siyoto Electronics Co.Ltd
Design：
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Product type:
Drawer
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Approval:
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SMBT-
蓝牙耳机 页
何应富
V0.1
周国华
何应富
Bluetooth Controler
KEY
ANT
BT-MIC
LED-B
BATTERY 3.7V
Bluetooth Radio and Balun
RF
125mA
AC7003F4-QFN20
BLUE
RED
Bypass LDO
Clock
LED PWM
MIC Bias
Generation
Control and
Output
Clock
Debug S PI
UART/USB
RAM
RXTX
Bluetooth Radio
and +Balun
2.4GHZ
ROM
Flash/
EEPROM
VCC
Charge
Pump
USB IN
Battery protection ic
R SPK
HPR
POWER/P/P/VOL+ -
3722
High-quality
DAC L/R
GPIO
WKUP
L SPK
HPL
P15C2S
SOT23-6
OVP/OCP
10125
Crystal
3225
24MHZ