Integration Manual

TOBY-L2 and MPCI-L2 series - System Integration Manual
UBX-13004618 - R04 Advance Information System description
Page 10 of 141
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 FiltersFilters
LNAs FiltersFilters
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