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
Product Technical Specification
Rev 1 Apr.17 26 41110693
BC127 and BC127-HD With External
Supply
Figure 4-10 shows an example of a fixed voltage configuration.
Figure 4-11: Example of Fixed Voltage Configuration
Referring to Figure 4-11 above, a 3.3V supply is connected to pins VCHG,
VBAT_SENSE, VBAT, and VDD_PADS. The minimum voltage is 3.1V to enable
the module to boot.
VCHG is the input to the battery charger regulator though in this configuration the
charging circuit is not used.
VBAT_SENSE is the input to the battery sensor circuitry, which in this
configuration is not used.
VBAT is the main supply input to the internal switch mode and LDO regulators
and supply domain for VREGEN.
Table 4-3: Input and Tri-state Currents
Input and Tri-state Currents Min Typ Max Unit
Strong pull-up -150 -40 -10
µA
Strong pull-down 10 40 150
µA
Weak pull-up -5 -1.0 -0.33
µA
Weak pull-down 0.33 1.0 5.0
µA