Antenna Tuner Control Interfaces; Usb_Boot Interface - Quectel EG060K Series Hardware Design

4.11. Antenna Tuner Control
The module supports external antenna tuner control through the RFFE interface. The following is the pin
definition of the RFFE interfaces.
Table 29: Pin Definition of RFFE Interfaces
Pin Name Pin No.
RFFE_CLK 71
RFFE_DATA 73
VDD_RF 162

4.12. USB_BOOT Interface

The module provides one USB_BOOT pin. Pull up USB_BOOT to VDD_EXT before powering on the
module, then the module will enter emergency download mode when powered on. In this mode, the
module supports firmware upgrade over USB interface.
Table 30: Pin Definition of USB_BOOT Interface
Pin Name Pin No.
USB_BOOT 140
EG060K &EG120K _Series_Hardware_Design
103
Interfaces*
*
for Antenna Tuner Control
I/O Description
1.8 V power domain.
DO
RFFE serial interface for external
DIO
antenna tuner control.
Provide 2.85 V for external RF
PO
circuit.
I/O Description
Force the module into emergency
DI
download mode
LTE-A Module Series
Comment
If unused, keep them
open.
Comment
1.8 V power domain.
Active high.
If unused, keep it open.
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