Specifications

SIM7912&SIM7906 Hardware Design V1.02
www.simcom.com 53 / 85
Table 35: PIN Definition of RFFE Interface for Antenna Tuner Control
Pin name
Pin no.
I/O
Functional description
Comment
RFFE_CLK
71
DO
RFFE serial interface for external tuner
control.
1.8V voltage domain.
If unused, please keep
open
RFFE_DATA
73
DIO
VDD_RF
162
PO
Provide 2.85V for external RF circuit.
1. “*” means under development, for details please contact SIMCom support teams.
NOTE