Product Info

LPWA Module Series
BG95 Series Hardware Design
BG95_Series_Hardware_Design 52 / 106
Figure 19: Reference Circuit with Dual-Transistor Circuit (Recommended for GNSS UART)
GNSS_TXD is a BOOT_CONFIG pin (pin 27), therefore voltage-level translation IC solution with pull-up
circuit or signal transistor/MOSFET circuit is not applicable to it. The dual-transistor circuit solution is
recommended for GNSS UART.
3.12. PCM and I2C Interfaces*
BG95 provides one Pulse Code Modulation (PCM) digital interface and one I2C interface which are used
for VoLTE or GSM CS voice only.
The following table shows the pin definition of the two interfaces which can be applied on audio codec
design.
NOTE