Leedarson LA02303B, Руководство пользователя

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LA02303B BLE Module Specification
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Better Life with Better IoT Innovation 4 / 20
1.2 Block Diagram
A general block diagram of the module is shown as below.
LA02303B Module Block Diagram
ADC2
ADC1
ADC0
GND
GPIO8
TX1
RX1
GPIO7
NC
NC
RX0
TX0
RESET_N
FACTORY
Antenna
RX
1
V
C
C
TX
1
G
N
D
A
D
C
0
PW
M
6
FA
C
TO
RY
PW
M
5
R
ES
ET
_N
PW
M
4
TX
0
PW
M
3
RX
0
PW
M
2
G
N
D
PW
M
1
Modem
ARM
Cortex-M4F
Patchable
ROM
256KB
Crystal
40MHz
IO
P
INM
UX
UART x2
SPI x2
I2C x2
GPIOs
Timers
AUXADC
IR
RC
Lo g UART
PGA+SDM_ADC
PMU
RTL8762DKF Chip
Diagram
Key Scan
Watchdog
Low Power
Comparator
DC/DC
Con verter
6-ch ann el
DMA Engine
Program Memo ry
Flash
1MB
Data Memory
RAM
192KB
OCP BUS
Crystal 40MHz
DC/DC Inducto r
GND
GND
RF
tranceiver
A
P
B
Crystal
32.768KHz
Crystal 32.768KHz
Figure 1.3 LA02303B Block Diagram
1.3 Ordering Information
Table 1.1 Ordering Information
Product Protocol IC Solution.
Operating
Temperature
Dimension Antenna
LA02303B BLE RTL8762DKF -40 ~100 ℃ 16mm*23.7mm*2.5mm
PCB
antenna