Integration Manual

Table Of Contents
TOBY-L2 and MPCI-L2 series - System Integration Manual
UBX-13004618 - R26 Design-in
Page 132 of 162
2.16.3 Schematic for TOBY-L2 module “02”, “03” or “62” product versions
Figure 75 is an example of a schematic diagram where a TOBY-L2 cellular module “02”, “03” or “62” product
version is integrated into an application board, using all the available interfaces and functions of the module.
3V8
GND
330µF
100nF 10nF
TOBY-L2 module ’02’, ‘03’ or ’62’ version
71 VCC
72 VCC
70 VCC
3 V_BCKP
68pF 15pF 8.2pF
+
100µF
+
GND
RTC
back-up
26 HOST_SELECT0
62 HOST_SELECT1
SDA
SCL
55
54
RSVD
RSVD
6
21
GPIO1
Wi-Fi enable
ELLA-W131
Wi-Fi module
ANT1 29
ANT2 26
BPF
LDO regulator
3V8
OUTIN VIO5
1V86
LDO regulator
3V3
3V8
OUTIN
GNDSHDNn
3V34
1V8
OUTIN
GNDSHDNn
V_INT
470k
65SDIO_CMD
66SDIO_D0
68
SDIO_D1
63
SDIO_D2
67
SDIO_D3
64
SDIO_CLK
22Ω
22Ω
22Ω
22Ω
22Ω
22Ω
SD_D015
SD_D1
16
SD_D211
SD_D312
SD_CLK14
SD_CMD13
GND
PDn9
RESETn10
SLEEP_CLK19
CFG20
GND
47k
Wi-Fi
antenna
23 RESET_N
Application
Processor
Open
drain
output
20 PWR_ON
Open
drain
output
TP
TP
16 TXD
17 RXD
12 DCD
14 RTS
15 CTS
13 DTR
10 DSR
11 RI
TP
TP
TP
TP
TP
TP
TP
TP
TXD
RXD
DCD
RTS
CTS
DTR
DSR
RI
1.8 V DTE
GND GND
USB 2.0 host
D-
D+
27 USB_D-
28 USB_D+
VBUS 4 VUSB_DET
TP
TP
GND GND
0Ω
0Ω
0Ω
0Ω
0Ω
0Ω
0Ω
V_INT
BCLK
LRCLK
Audio Codec
MAX9860
SDIN
SDOUT
SDA
SCL
52I2S_CLK
50I2S_WA
51I2S_TXD
53I2S_RXD
61GPIO6 MCLK
IRQn
10k
10µF1µF100nF
VDD
SPK
OUTP
OUTN
MIC
MICBIAS
1µF
2.2k
1µF
1µF
MICLN
MICLP
MICGND
2.2k
ESD ESD
V_INT
10nF10nF
EMI
EMI
27pF27pF
10nF
EMI
EMI
ESD ESD
27pF27pF10nF
47pF
SIM Card Holder
CCVCC (C1)
CCVPP (C6)
CCIO (C7)
CCCLK (C3)
CCRST (C2)
GND (C5)
47pF 47pF 100nF
59VSIM
57SIM_IO
56SIM_CLK
58SIM_RST
47pF
SW1
SW2
5V_INT
60GPIO5
470k
ESD ESD ESD ESD ESD ESD
1k
TP
V_INT
25 GPIO4
3V8
Network
Indicator
22 GPIO2
24 GPIO3
0Ω
0Ω
0Ω
87ANT2
75ANT_DET
10k
Connector
27pF
ESD
Secondary
Cellular
Antenna
33pF
82nH
82nH
81
Connector
Primary
Cellular
Antenna
33pF
ANT1
4.7k
4.7k
Not supported by
TOBY-L201-02S
TOBY-L220-62S
Figure 75: Example schematic diagram: integrating TOBY-L2 module 02, ’03’ or ‘62‘ version in an application using all interfaces