AirPrime Module Datasheet
Table Of Contents
- 1: Introduction
- 2: Physical Characteristics
- 3: Audio Circuit
- 4: Hardware Design Guidelines
- 5: Power Supply Sequencing
- 6: GPIO Electrical Specifications
- 7: Solder Reflow Profile
- A: Regulatory Certifications
- B: Packaging Dimensions
Rev 1 Apr.17 28
41110693
5
5: Power Supply Sequencing
VBAT and VDD_PADS should be driven high at the same time, VREGEN must be
delayed by at least 5ms before driving high to enable the module. RST# should be
driven low for at least 20ms to reset the module. It is not necessary to reset the
module post power up.
Figure 5-1: Power Supply Sequencing
The VBAT ramp should be monotonic, any dips in the VBAT ramp in the region of 1.6
to 3.1V may cause the module to power up incorrectly.
When using VCHG to power the module the VCHG ramp should be monotonic, any
dips in the VCHG ramp in the region of 1.6 to 3.1V may cause the module to power up
incorrectly.