User's Manual

Telit GE863-QUAD / GE863-PY
Hardware User guide
1vv0300715, Rev. ISSUE#0, - 21/02/06
Reproduction forbidden without Telit Communication written authorization – All Right reserved – Right of modification reserved page 39 of 71
R711 = gain* R708= 1.5* 10 = 15 kΩ
R719 = (gain -1) * R720 = (1.5 -1) * 10 = 5 kΩ
The commercial values of 15kΩ & 5.6kΩ are then chosen.
As a consequence the values of the capacitors C726 and C727 shall be:
C726= 1/ (2π*8000*R719)= 3.5 *10
-9
F
C727= 1/ (2π*8000*R711)= 1,2 *10
-9
F
The commercial values of 3.3nF and 1nF are then chosen.