antenna-active-dat
Active Antenna for GNSS - A7670-dat
GNSS active antenna design is default solution.
Passive GNSS antenna Note:
Strongly suggest to cut off GNSS active antenna supply by AT+CVAUXS=0, if customer design is passive antenna for GNSS.
VDD_GNSS
Default power supply value is controlled by AT+CVAUXV, default is 3V, which should meet the antenna requirement. For example, “AT+CVAUXV=2800” sets power supply 2.8V.
AT+CVAUXV Set voltage value of the pin named VDD_AUX
This command is used to set the voltage value of the pin which is named VDD_AUX.
Active Antenna SIM7060-dat
Active Antenna SIM7070-dat - SIM7080-dat
In the matching circuit of Figure 27:
- L1 and L2 are not populated by default.
- C1 is populated with a 0 Ohm resistor by default; the specific value will be provided by the antenna manufacturer after antenna tuning is complete.
- C2 is populated with a 33pF capacitor by default, which serves as a DC blocking capacitor. - capacitor-dat
The VDD power supply for the active antenna needs to match the active antenna being used.
It is recommended that customers use an LDO/DCDC converter to power the active antenna. This way, when the GNSS function is not in use, the LDO/DCDC can be turned off to reduce current consumption. - LDO-dat