Product Info

LTE Module Series
BG96 Hardware Design
BG96_Hardware_Design 50 / 81
The following figure shows a reference design of PCM and I2Cinterfaces with an external codec IC.
Figure 18: Reference Circuit of PCM Application with Audio Codec
“*” means under development.
3.12. Network Status Indication
BG96 provides one network status indication pin:NETLIGHT. The pin is used to
drive a network status indication LED. The following tables describe the pin
definition and logic level changes ofNETLIGHT in different network activity
status.
PCM_IN* 6 DI PCM data input 1.8V power domain
PCM_OUT* 7 DO PCM dataoutput 1.8V power domain
I2C_SCL* 40 OD I2C serial clock Require external pull-up to 1.8V
I2C_SDA* 41 OD I2C serial data Require external pull-up to 1.8V
NOTE