Sierra Wireless HL7748 Benutzerhandbuch
41110555
Rev 1.0
September 21, 2017
13
Product Technical Specification
Introduction
1.4.
Architecture
The figure below presents an overview of the
AirPrime HL77xx modules’ internal architecture and
external interfaces.
Note:
Dotted parts are optional depending on variant.
AirPrime HL7718, HL7748 and HL7749
32.768KHz
VGPIO
RESET_IN_N
LGA-
146
Baseband
MCU
DSP
PMU
Analog Baseband
Embedded
SIM
LGA-
146
PWR_ON
SAW
Filters
USB
Front-End
Module
(SAW/PA/
Switch)
RX
RAM Memory
Peripherals
Flash
Memory
SIM
Switch
Transceiver
26MHz
VBATT_PA
Figure 1.
Architecture Overview
1.5.
Interfaces
The AirPrime HL77xx modules provide the following interfaces and peripheral connectivity:
•
1x - VGPIO (1.8V)
•
1x - 1.8V USIM
•
1x - eUICC/USIM (optional embedded SIM)
•
1x - USB 2.0
•
10x - GPIOs (1 of which has a multiplex)
•
1x - 8-wire UART
•
1x - Active Low POWER ON
•
1x - Active Low RESET
•
2x - ADC
•
2x - System Clock Out (32,768KHz and 26MHz)
•
1x – Debug Interface