User's Manual

TOBY-R2 series - System Integration Manual
UBX-16010572 - R04 Design-in
Page 122 of 147
2.14 Schematic for TOBY-R2 series module integration
2.14.1 Schematic for TOBY-R2 series module “02” product version
Figure 68 is an example of a schematic diagram where a TOBY-R2 series cellular module “02” product version is
integrated into an application board, using all the available interfaces and functions of the module.
3V8
GND
330µF
100nF 10nF
TOBY-R2 series
(’02’ product version)
71 VCC
72 VCC
70 VCC
3 V_BCKP
68pF 15pF
+
100µF
+
GND
RTC
back-up
26 HOST_SELECT0
62 HOST_SELECT1
SDA
SCL
55
54
RSVD
RSVD
6
21
GPIO1
65SDIO_CMD
66SDIO_D0
68
SDIO_D1
63SDIO_D2
67
SDIO_D3
64
SDIO_CLK
GND
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
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
87
ANT2
75ANT_DET
10k
Connector
27pF
ESD
Secondary
Cellular
Antenna
33pF
82nH
82nH
81
Connector
Primary
Cellular
Antenna
33pF
ANT1
4.7k
4.7k
TP
Mount for modules
supporting 2G
0Ω
RSVD
19
TP
RSVD
18
TP
Figure 68: Example of schematic diagram to integrate a TOBY-R2 module “02” product version using all available interfaces