User's Manual
Table Of Contents
- Introduction
- Abbreviation
- Features
- Electrical Specifications
- Host interface pin assignments
- LGA Pad Diagram
- Pin Assignments
- Power supply
- USB interface
- SGMII interface
- UIM interface
- Control interface
- Power-on Signal
- Wake-up interface
- Reset Signal
- WWAN state Signal
- Digital interface
- JTAG Interface
- SPI Master Interface
- PCM Interface
- I2S Interface
- I2C Interface
- UART Interface
- ADC Interface
- RF Specifications
- RF connections
- Interference and sensitivity
- GNSS external circuit design
- RF Specification
- 3.5.1 Band support
- 3.5.2 Bandwidth support
- 3.5.3 RF Transmit Specification
- 3.5.4 RF Receiver Specification
- 3.5.5 GNSS Receiver Specification
- Power
- Power consumption
- Software Interface
- Support tools
- USB interface
- Mechanical and Environmental Certifications
- PCBA Form Factor
- Reflow
- PCB pad design
- Labeling
- SMT Voids control
- Mother board PCB thickness
- Stencil design
- Thermal considerations
- Regulatory Compliance and Certification
- Certification testing
- Packaging
- Tape-and-Reel Package
- Single Packaging for Samples
- MSL level
- Safety Recommendation
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HW Design Guidelines
143
WAKEUP_OUT
DI/DO
PD
2.2. Power supply
LTE module power input is VCC. The internal power chipset will transfer VCC to other power
level.
Table 7. Power supply voltage level
Power
Pin Name
Pads
Description
Voltage Level (V)
Min.
Typ.
Max.
VCC
VCC1 to VCC6
Nos. 37 to 42
Main Power Supply
3.3
3.8
4.2
The M18QF/M18QA Series include an integrated power manager enabling single and direct
voltage supply from the battery, reducing the overall bill of materials. The typical voltage
3.8V is recommended.
Schematic suggestion: Must to separate module power supply to three paths to keep
power clean as below for TX spurious performance. The VPH_PWR is for Baseband and RF
transceiver, the VPH_PWR_RF is for RF PA, the VPH_PWR_RF_VBATT is for RF PA control
circuit.