1. WARNINGS Side Description COMPONENTS SIDE (TOP) EXPRESSIONS BOARD 1/2
IC4 and IC5 (F )
Cases are SOP20, while PCB pads are for SOP18 cases.
Match component pin n°1 with silkscreen “pin n°1” symbol
Protect PCB below pins n° 10 and 11 with some kapton
IC2 (F ) – see figure below –
This component must be mounted parallel to PCB: before mounting, prefold pins at 90°.
In order to solder it next to IC5, you have to cut (red line) a little piece of heatspreader .
Protect PCB below case heatspreader (yellow zone) with some kapton.
Cutting line
Side
Description
COMPONENTS SIDE (TOP)
EXPRESSIONS BOARD
1/2

2. WARNINGS Side Description SOLDER SIDE (BOTTOM) EXPRESSIONS BOARD 2/2
Even if silkscreen indicates to mount it on components side (top), mount this 90°pin-strip on solder side (bottom), as shown here on the right.
Side
Description
SOLDER SIDE (BOTTOM)
EXPRESSIONS BOARD
2/2