Pcb Design And Integration; Pcb Mechanical Mounting; Electrical Connector - Advanced Navigation Spatial OEM Reference Manual

5

PCB Design and Integration

Spatial OEM has been designed to allow for quick and easy integration into the customer's own
PCB design through the use of a board to board connector and specially designed SMD stand-offs.
5.1

PCB Mechanical Mounting

Spatial OEM mounts to its target PCB through the use of four precision 2mm high stand-offs that
are supplied with every Spatial OEM. The stand-offs have been specially designed to be soldered
to the target PCB during board assembly and are provided on pick and place tape to allow
automated board assembly. Once the Spatial OEM is connected to the target PCB, four M1.6 x
4mm screws are used to hold Spatial OEM in place. Because the stand-offs are threaded, no extra
nut is required on the reverse side of the user's target PCB and no part of the the screw should
protrude through to the opposite side of the user's PCB. Please see Illustration 15 and Illustration
16 for a visual understanding of Spatial's mounting.
Please note that when mounting Spatial, the screws should be tightened evenly and only just tight
enough to hold the board down. Over tightening the screws can place stress on the board and
impact performance. For permanent installations thread locker should be used on the screws.
Illustration 15: Photo of Spatial OEM's mounting
hardware on target PCB
5.2

Electrical Connector

The electrical connection to the Spatial OEM PCB is through a Hirose DF40 series 20 pin micro
pitch board to board connector. These connectors have shock absorbing features, a large self-
alignment distance and high contact reliability. A positive click should be felt when successful
mating occurs between Spatial OEM and the target board. It should be noted that this connector is
not designed for the Spatial OEM to be plugged in whilst power is applied to the user's PCB and
connector mating cycles should not exceed 50 cycles to ensure connector reliability.
The manufacturers part number for the required PCB connector is
Hirose Part #: DF40C(2.0)-20DS-0.4V(51)
The connector can be ordered from the following distributors using the following numbers:
Spatial OEM Reference Manual
Page 24 of 88
Version 2.7
Illustration 16: Photo of Spatial OEM mounted on
target PCB