User's Manual

www.rovingnetworks.com Version 3.43 5/21/13 page 10
RN41-DS
2.9 Application Schematic
Figure 2-6 shows a example application circuit. This
schematic is for the RN-41-EK development tool.
FIGURE 2-6: TYPICAL APPLICATION CIRCUIT
TX D
RX D
GND
1
SPI _MOSI
2
PI O6
3
PI O7
4
RESET
5
SPI _SCK
6
PCM_CL K
7
PCM_SYNC
8
PCM_I N
9
PCM_OUT
10
VDD
11
GND
12
UART_RX
13
UART_TX
14
UART_RTS
15
UART_CTS
16
USB_D+
17
USB_D-
18
PI O2
19
PI O3
20
PI O5
21
PI O4
22
SPI _CS#
23
SPI _MI SO
24
GND
2
8
GND
29
A
IO0
3
0
PI
O8
31
PI
O9
3
2
PI
O10
33
PIO1
1
34
AIO1
35
SH
IELD
0
M1 RN-41 Module
SPI _MI SO
SPI _MOSI
SPI _SCK
SPI _SS
RT S
CT S
RESET _N
PI O6
PI O7
PI O4
PI O5
PI O3
PI O2
AIO1 AI
O0
PIO11 PIO10 PI
O9
PIO8
1
2
3
4
5
6
J3
SPI MASTER
SPI _MI SO
SPI _MOSI
SPI _SCK
SPI _SS
3.3V
3.3V
PCM_CL K
PCM_SYNC
PCM_OUT
PCM_I N
100k
R17
300k
R18
100k
R16
300k
R15
V
B
1
V
B2
A
IO0
A
IO1
1
2
3
4
5
6
7
8
9
10
11
12
J1
HEADER 1
1
2
3
4
5
6
7
8
9
10
11
12
J2
HEADER 2
PI O6
PI O7
RESET _N
RX D
TX D
RT S
CT S
PI O4
PI O3
PI O2
PIO11
PIO10
PI O9
PI O8
3.3V
VB1
VB2
SHDN
D_N
D_P
TXD
RXD
RTS
CTS
VBUS
RESET
18
3V 3OUT
16
USBDP
14
USBDM
15
GND
1
7
CBUS2
10
CBUS1
21
VC
CI
O
1
CBUS3
11
CBUS4
9
CBUS0
22
GND
20
RI
3
DCD
7
DSR
6
DTR
31
CTS
8
RTS
32
RXD
2
TXD
30
VCC
19
OSCI
27
OSCO
28
AGND
24
TEST
2
6
GND
4
THPAD
33
FT232RQ
U3
100nF
C6
100nF
C5
100nF
C4
GND
5
D+
3
D-
2
VBUS
1
MTAB
6
USB Mini B
J4
3k3R12
3k3
R13
3k3
R11
3k3
R14
VBUS
3.3V VBUS
VI N
1
G
ND
2
SHDN
3
BYP
4
VOUT
5
U1 TC1185
1uF
C2
1uF
C1
SHDN
3k3
R1
1
2
3
4
S1
3k3R10
3k3
R9
3k3
R8
3k3
R7
3.3V
PI O4
PI O3
PI O6
PI O7
Red LEDD2
Activity
PI O5
3.3V
PI O8
Green LED
D1
Connection Status
470
R2
470
R3