GE864-QUAD V2 Hardware User Guide
1vv0300841 Rev.5
–
2017-05-11
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights
Reserved.
Page 35 of 77
This is done in order to reduce the radiated field (noise) at
the switching frequency (100-500 kHz usually).
The use of a good common ground plane is suggested.
The placement of the power supply on the board must be done
in such a way to guarantee that the high current return paths
in the ground plane are not overlapped to any noise sensitive
circuitry as the microphone amplifier/buffer or earphone
amplifier.
The power supply input cables must be kept separate from
noise sensitive lines such as microphone/earphone cables.
6.3.4.
Parameters for ATEX Applications
In order to integrate the Telit
’
s GE864-QUAD V2 module into an
ATEX application, the appropriate reference standard IEC EN xx
and integrations shall be followed.
Below are listed parameters and useful information to
integrate the module in your application:
Total capacity: 27.45 uF
Total inductance: 55.20 nH
No voltage upper than supply voltage is present in the
module.
No step-up converters are present in the module.
In abnormal conditions, the maximum RF output power
may be up to 34 dBm.
For this particular application, we recommend the customer to
involve TTSC (Telit Technical Support Center) in the design
phase of the application.
