Specifications

Differences in the audio output and input gain settings between G24-L and G30 may be
noticed. Different gain levels for each path need to be set through AT commands, depending
on the application.
G30 digital audio:
 PCM bus clock frequency 144 kHz
 I2S bus CLK - 512 kHz
It is important to note that the ON_N signal voltage level is different between the modules. In
G24-L the ON_N signal is referenced to logic level.
In G30 the PWR_ON, when connecting the power supply for the first time or when
reconnects it after a power supply loss, G30 will power-on. The G30 is turned-on
automatically when external power is applied above the minimum operating level.
This difference may affect customers using this signal if their design does not follow the
recommendation in the Developer Manuals:
"The PWR_ON input signal is set high by an internal pull-up resistor whenever a power
supply is applied to the module. Therefore, it is recommended to operate this signal by using
an open collector/drain circuit connection."
Turning ON Using ON_N:
G24-L: Asserting the ON_N signal low for a minimum of 500 milliseconds and a maximum
of 1.5 seconds will cause the G24-L to turn-on.
G30: Asserting the ON_N signal low for a minimum of 600 milliseconds will cause the G30
to turn-on.