Quectel BG96 Series - Network Status Indication

LTE Module Series
BG96 Hardware Design
BG96_Hardware_Design 40 / 78
The following figure shows a reference design of PCM* and I2C* interfaces with an external codec IC.
PCM_IN
PCM_SYNC
PCM_CLK
I2C_SCL
I2C_SDA
Module
1.8V
4.7K 4.7K
BCLK
WCLK
ADC
SCL
SDA
BIAS
MICBIAS
INP
INN
LOUTP
LOUTN
Codec
PCM_OUT
DAC
Figure 17: 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 of NETLIGHT in
different network activity status.
Table 16: Pin Definition of NETLIGHT
Pin Name
Pin No.
I/O
Description
Comment
NETLIGHT
21
DO
Indicate the module’s network activity
status
1.8V power domain
NOTE