User's Manual
Table Of Contents
- Introduction
- Modules RF band support
- Features
- Module Connection Interface
- Environmental Specifications and Certifications
- Environmental Specifications
- Certifications
- Green Product Compliance
- Pin Definitions
- LGA Module Pin Diagram
- LGA Module Pin Definitions
- Electrical Specifications
- Power supply
- Power consumption
- I/O Interface
- USB interface
- UIM interface
- Control interface
- Power-on/ WAKEUP_IN Signal
- WAKEUP_OUT interface
- Reset Signal
- SPI Master Interface
- PCM Interface
- I2S Interface
- I2C Interface
- UART Interface
- ADC Interface
- RF Specifications
- Band support
- Bandwidth support
- RF Transmit Specification
- RF Receiver Specification
- GNSS Receiver Specification
- Software Interface
- Support tools
- USB interface
- Mechanical
- PCBA Form Factor
- Design Guide
- Power supply
- Thermal design
- USB design
- RF connection
- Interference and sensitivity
- GNSS external circuit design
- Reflow
- PCB pad design
- Stencil
- Antenna design requirement
- Labeling and Packaging
- Labeling
- Packing
- MSL level
- Safety Recommendation
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Product Technical Specifications
□ Normal □ Internal Use Confidential □ Restricted Confidential
6. Design Guide
6.1. Power supply
LTE module power input is VCC. The internal power chipset will transfer VCC to other power
level.
Table 13. 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 IMQ3 series module 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.