RN4870 Datasheet, PDF (27/48 Pages) Microchip Technology – Bluetooth 4.2 Low Energy Module

FIGURE 5-5:
RN4871U REFERENCE CIRCUIT
VCC LED Option
LD1 _R1
P0_2
330
Reverse Voltage Protection
Power Input
J1
Q1
STS2301
VCC
1
2
C1
GND
GND GND
10uF 6.3V X5R
Configurable I/O
P0_0
P1_7
P0_2
P2_0
P1_2
P2_7
P1_3
P3_6
P1_6
VCC
R2
4.7k
C2
1uF
GND
GND
P1_6
RST
10 _{BK_I}
11 _VBAT
12 _GND
13 _{P1_6}
U1
RN4871U
P2_0
MODE
Low Test Mode
High APP Mode
UART_RX
UART_TX
UART Interface
Configuration Interface
P2_0
J2
VCC 1
2
UART_RX 3
UART_TX 4
5
GND
UART_TX ⁴
P1_3 ³
P1_2 ²
BT_RF ¹
P1_3
P1_2
Antenna Matching
L1
1nH
C3
C4
ANT1
GND
GND
GND