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
Audio Circuit
Rev 1 Apr.17 15 41110693
Notes
• PIO_X are bidirectional with weak pull down
• Reset Input is with strong pull-up
• USB data positive with selectable internal 1.5kΩ pull up resistor
• UART are bidirectional with weak pull up
• PCM_OUT, IN, SYNC, and CLK can be used as SPI_MISO, MOSI, CSB, and
CLK respectively. SPI-PCM# high switches SPI/PCM lines to SPI, low
switches to PCM/PIO use
53 BT RF BT RF BT RF
54 GND GND Common Ground
Table 3-2: Additional Pins on the BC127-EXT
No Pin Name Pin Type Pin Description