TOBY-L2 and MPCI-L2 series - System Integration Manual
UBX-13004618 - R07
Advance Information
System description
Page 10 of 158
1.2
Architecture
Figure 1 summarizes the internal architecture of TOBY-L2 series modules.
Cellular
Base-band
Processor
Memory
Power Management Unit
26 MHz
32.768 kHz
ANT1
RF
Transceiver
ANT2
V_INT (I/O)
V_BCKP (RTC)
VCC (Supply)
SIM
USB
GPIO
Power On
External Reset
PAs
LNAs
Filters
Filters
Duplexer
Filters
PAs
LNAs
Filters
Filters
Duplexer
Filters
LNAs
Filters
Filters
LNAs
Filters
Filters
Switch
Switch
DDC(I
2
C)
SDIO
UART
Digital audio (I
2
S)
ANT_DET
Host Select
Figure 1: TOBY-L2 series block diagram
As described in the Figure 2, each MPCI-L2 series module integrates one TOBY-L2 series module:
The MPCI-L200 integrates a TOBY-L200 module
The MPCI-L210 integrates a TOBY-L210 module
The TOBY-L2 module represents the core of the device, providing the related LTE/3G/2G modem and processing
functionalities. Additional signal conditioning circuitry is implemented for PCI Express Mini Card compliance, and
two UF.L connectors are available for easy antenna integration.
ANT1
SIM
USB
W_DISABLE#
TOBY-L2
series
Signal
Conditioning
ANT2
PERST#
LED_WWAN#
U.FL
U.FL
3.3Vaux (Supply)
Boost
Converter
VCC
Figure 2: MPCI-L2 series block diagram