LENA-R8 series - System integration manual
UBX-22015376 - R02
Design-in
Page 95 of 116
C1-Public
is an illustrative example of a schematic diagram where a LENA-R8001M10 cellular / GNSS
module is integrated into an application board, using almost all the available interfaces and functions
of the module.
TXD
RXD
RTS
CTS
DTR
DSR
RI
DCD
GND
12
TXD
9
DTR
13
RXD
10
RTS
11
CTS
6
DSR
7
RI
8
DCD
GND
3V8
GND
330µF
10nF
100nF
56pF
LENA-R8001M10
52
VCC
53
VCC
51
VCC
+
GND
GND
1.8V DTE
USB 2.0 Host
18
RESET_N
Application
Processor
Open
Drain
Output
15
PWR_ON
Open
Drain
Output
D+
D-
29
USB_D+
28
USB_D
–
15pF
TP
TP
47pF
SIM Card Holder
VCC (C1)
VPP/SWP (C6)
IO (C7)
CLK (C3)
RST (C2)
GND (C5)
47pF 47pF
100nF
41
VSIM
39
SIM_IO
38
SIM_CLK
40
SIM_RST
47pF
SW1
SW2
4
V_INT
42
GPIO5
470k
ESD ESD ESD ESD ESD ESD
1k
TP
V_INT
VBUS
17
VUSB_DET
100nF
62
RSVD
82nH
59
ANT_DET
10k
27pF
ESD
56
Connector
Cellular
Antenna
33pF
ANT
8.2pF
24
GPIO3
23
GPIO2
GPIO4
25
4.7k
4.7k
0
Ω
TP
0
Ω
TP
0
Ω
TP
15pF
39nH
Optional, 0
Ω
otherwise
BLM18EG221SN1 or 0
Ω
GPIO
V_INT
Optional, DNI otherwise
16
GPIO1
3V8
Network
Indicator
GND
RSVD
33
USB_BOOT
TP
97
RFCTRL1
98
RFCTRL2
3
V_BCKP
GND
TXD
RXD
48
RXD_GNSS
47
TXD_GNSS
1.8V Output
1.8V Input
46
EXTINT
45
TIMEPULSE
1.8V Host
0
Ω
0
Ω
TP
TP
1.8V Output
99
VCC_GNSS
100
VBCKP_GNSS
44
ANT_ON
31
ANT_GNSS
Connector
GNSS
Antenna
ESD
120nH
100nF
3V
33
Ω
1.8V
100nF
BCLK
LRCLK
Audio Codec
ALC5616
DACDAT
ADCDAT
SDA
SCL
36
I2S_CLK
34
I2S_WA
35
I2S_TXD
37
I2S_RXD
19
GPIO6
MCLK
SPK
LOUTP
LOUTN
MICBIAS
1µF
2.2k
1V8
3V0
3V0
10µF
0.1µF
V_INT
MIC
1µF
1µF
INN
INP
2.2k
ESD ESD
10nF
10nF
EMI
EMI
27pF
27pF
10nF
EMI
EMI
ESD ESD
27pF
27pF
10nF
26
SDA
27
SCL
GND
1µF
1µF
0.1µF 10µF
Figure 75: Illustrative example of schematic diagram to integrate a LENA-R8001M10 module using almost all interfaces