Automotive Module Series
AG521R-NA QuecOpen
Hardware Design
AG521R-NA_QuecOpen_Hardware_Design 40 / 92
Figure 6:
Sleep Mode Application without Suspend Function
Switching on the power switch to supply power to USB_VBUS will wake up the module.
Please pay attention to the level match shown in dotted line between the module and the host.
3.5.2.
Airplane Mode
When the module enters airplane mode, the RF function does not work, and all AT commands correlative with RF
function will be inaccessible. The mode can be set via
AT+CFUN=<fun>
command. The parameter
<fun>
indicates the module’s functionality levels, as shown below.
⚫
AT+CFUN=0:
Minimum functionality mode. Both (U)SIM and RF functions are disabled.
⚫
AT+CFUN=1:
Full functionality mode (by default).
⚫
AT+CFUN=4:
Airplane mode. RF function is disabled.
3.6.
Power Supply
3.6.1.
Power Supply Pins
The module provides seven VBAT pins for connection with an external power supply.
⚫
Three VBAT_BB pins for module’s baseband part.
⚫
Four VBAT_RF pins for module’s RF part.
Table 7: VBAT and GND Pins
Pin Name
Pin No.
Description
Min.
Typ.
Max.
Unit
VBAT_BB
241, 242, 244
Power supply for the
module’s baseband part
3.3
3.8
4.3
V
VBAT_RF
109, 111, 112, 114
235, 236, 238, 239
Power supply for the
module’s RF part
3.3
3.8
4.3
V
GND
12, 18, 26, 33, 42, 86, 92, 98, 115, 117, 118, 120, 121, 124–131,133–135, 137, 138, 140, 141,
144–151,153, 155, 156, 158, 159, 160, 162, 164, 165, 167, 168, 171–174,176, 177, 180, 182,
183, 185, 186, 189, 191, 192, 194, 195, 198, 199, 201–203, 206, 208, 209, 211, 212, 215, 217,
218, 220, 221, 230, 232, 233, 234, 237, 240, 307–400
NOTE
