RN41 Datasheet, PDF (12/28 Pages) KOA Speer Electronics, Inc. – fixed metal film melf resistors

RN41/RN41N
2.10 Application Schematic
Figure 2-7 shows a example application circuit. This schematic is for the RN-41-EK development tool. Refer to Section
1.1 “MCU Interface” for details on how to connect RN41/RN41N to a microcontroller.
FIGURE 2-7:
TYPICAL APPLICATION CIRCUIT
M1
SPI _MOSI
PI O6
PI O7
RESET _N
SPI _SCK
PCM_CL K
PCM_SYNC
PCM_I N
PCM_OUT
3.3V
1 _GND
2 _{SPI _MOSI}
3 _{PI O6}
4 _{PI O7}
5 _RESET
6 _{SPI _SCK}
7 _{PCM_CL K}
8 _{PCM_SYNC}
9 _{PCM_I N}
10 _{PCM_OUT}
11 _VDD
12 _GND
RN41 Module
SPI _MI SO ²⁴
SPI _CS# ²³
PI O4 ²²
PI O5 ²¹
PI O3 ²⁰
PI O2 ¹⁹
USB_D- ¹⁸
USB_D+ ¹⁷
UART_CTS ¹⁶
UART_RTS ¹⁵
UART_TX ¹⁴
UART_RX ¹³
SPI _MI SO
SPI _SS
PI O4
PI O5
PI O3
PI O2
CT S
RT S
TX D
RX D
PI O5
3.3V
D1 Green LED
R2
470
Connection Status
PI O8
D2 Red LED
R3
470
Activity
3.3V
C2
1uF
U1
5 _VOUT
4 _BYP
TC1185
VI N ¹
SHDN ³
SHDN ^R1
3k3
VBUS
C1
1uF
HEADER 1
1
2
3
4
5
6
7
8
9
10
11
12
J1
PI O6
PI O7
RESET _N
VB2
SHDN
3.3V
R18
300k
R15
300k
PI O4
PI O3
PI O2
CT S
RT S
TX D
RX D
PI O11
PI O10
PI O9
PI O8
VB1
HEADER 2
1
2
3
4
5
6
7
8
9
10
11
12
J2
3.3V
R10
R9
R8
R7
3k3 1
3k3 2
3k3 3
3k3 4
S1
RXD R12 3k3
TXD R13 3k3
CTS R11 3k3
RTS R14 3k3
PI O4
PI O3
PI O6
PI O7
VBUS
C4
100nF
30
2
32
8
31
6
7
3
TXD
RXD
RTS
CTS
DTR
DSR
DCD
RI
22
21
10
11
9
CBUS0
CBUS1
CBUS2
CBUS3
CBUS4
R17
100k
R16
100k
C6
100nF
C5
100nF
U3
FT232RQ
USBDM ¹⁵
USBDP ¹⁴
VBUS
D_N
D_P
RESET ¹⁸
J4
1
2
3
VBUS
D-
D+
MTAB ⁶
5 _GND
USB Mini B
OSCI ²⁷
OSCO ²⁸
DS50002280A-page 12
 2014 Microchip Technology Inc.