16
Figure 8
Step 3:
1.
The next step requires handling and soldering of the SI4735, PCM2906C and
OPA2353 PCB sub-assemblies.
Special Note!
The SI4735, PCM2906C and OPA2353 PCB sub-assemblies are susceptible to
damage from ESD (electrostatic discharge). ESD is more commonly known as
static electricity.
While handling and soldering these sub-assemblies, you should ground yourself
using an ESD wrist strap.
In addition, particular care should be taken on days when the humidity is low.
As a rule of thumb, if you are receiving a static electricity shock when you touch
doorknobs and other metal objects, you should exercise additional care when
handling the PCB sub-assemblies or better yet, wait for another day when the
humidity level is higher.
The PCB has ESD protection built in through the inclusion of surface mounted
ESD suppressors which will help protect the circuit once assembly is complete.
