Confidential and Proprietary
Monarch Go-GPS-BLE Datasheet and Hardware Integration Guide, Rev 1
14/28
2.
Integration guideline
2.1.
Digital connector
Monarch Go-GPS BLE device can interface to the Host Board through a board-to-board digital connector:
Customer shall design a host board with the connector part number 54167-0208 from Molex as
described in below figure. The datasheet can be obtained searching Molex web site
(
) with this part number.
Monarch Go-GPS is equipped with a digital connector, its part number is 53916-0208 from Molex
The below diagram is an example of host board implementation:
Example schematic of host board with Molex 54167-0208 connector to connect Monarch Go-GPS BLE
The mandatory electrical interfaces between Monarch Go-GPS BLE and the host board are:
Supply (VCC) min 3.1 V - max 5.5 V. The supply shall support up to 2 Watts peak even if the
average power consumption is significantly lower.
Ground
nRESET: Monarch Go-GPS BLE device will reset every time this signal goes low.
o
If this signal is connected to a MCU, the MCU GPIO shall be configured as open drain as
there is an internal pull-up in Monarch Go-GPS BLE.
o
If this signal is connected to a switch, having a pull-up resistor on host board is not
mandatory as there is an internal pull-up in Monarch Go-GPS BLE.
Warning
: The host board design for Monarch Go-GPS BLE is not compatible with Monarch Go if there is
no pull-up to an always-on supply on host board.
UART1 4-wires interface (RXD, TXD, RTS, CTS) is the main physical interface for controlling
Monarch Go-GPS BLE from an external processor, typically a MCU. The default configuration is:
