Use Instructions
Table Of Contents
- 1 About this document
- 2 Product Overview
- 3 Interface Description
- 3.1 PIN Definition
- 3.2 Operating condition
- 3.3 Digital I/O characteristics
- 3.4 Power Interface
- 3.5 UIM interface
- 3.6 PCM interface(TBD)
- 3.7 USB2.0 interface
- 3.8 UART Interface
- 3.9 Power on/off and reset interface
- 3.10 Interactive interface
- 3.11 Net Light interface
- 3.12 System boot configuration and download
- 3.13 Analog and Digital conversion (ADC) interface
- 3.14 I2C interface
- 3.15 SPI interface
- 3.16 Antenna interface
- 4 Product characteristics
- 5 Design guideline
- 6 Manufacturers
- 7 Package Storage information
- 8 Safety Information
L710HG Hardware Design
11
2.2 Product Function Outline
2.2.1 Hardware Diagram
This product mainly includes the following signal group：USB Interface signal、USIM card Interface
signal、I2C Interface signal、UART Interface signal、PCM Interface signal、SPI interface、Module
startup、Module control signal、Power supply and ground. The global architecture of the L710HG
module is described in the figure below.
RFFE2
LDO 5_ 1 V8
LDO7_UIM
RF Tranceiver
NB/CATM:B2/B4/B5/B12/B13/
B26
GSM:850/ 1900
SDR105
CPU
MDM9205
PMU
PME9205
19.2M
XO
MAIN
ANT
VBAT
UAR T
TRF FEM
GSM/GPRS/
EDGE/TD-
SCDMA/TDD-
LTE
S2916-
51
LDOs
RFIQs
PWRKEY
ADC
LP
FILTER
LTE_LB
RFFE1
MB_TX
LB_TX
RX
TRX TEM
LTE
SKY68020-11
LTE_MB
LTE_TX
LDO
LDO
LDOs
USIM
USB
2.0
GPIOs
I2C
I2S
SPI
SPMI
Fi
gure 2-3 L710HG System Functional Architecture
2.2.2 Radio frequency