Rainbow Electronics GC864-PY - Manual (Page 13)

Telit GE864 and GC864 Product Description
80273ST10008a Rev. 14 - 18/09/08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 13 of 62
2.7 Antenna
The antenna that the customer chooses to use should fulfill the following requirements:
Frequency range
Depending by frequency band(s) provided by
the network operator, the customer shall use
the most suitable antenna for that/those
band(s)
Bandwidth
80 MHz in EGSM 900, 70 MHz if GSM 850,
170 MHz in DCS, 140 MHz PCS band
For further information please refer to the GE864 and GC864 Hardware User Guide.
2.7.1 GC864 Antenna connector
The
GC864 module is equipped with a 50 Ohm RF connector from Murata, GSC type P/N MM9329-
2700B. The suitable counterpart is Murata MXTK92 Type or MXTK88 Type.
Moreover, the
GC864 has the antenna pads on the back side of the PCB. This allows the manual
soldering of the coaxial cable directly on the back side of the PCB. However, the soldering is not an
advisable solution for a reliable connection of the antenna.
2.8 Supply voltage
The external power supply must be connected to VBATT signal and must fulfill the following
requirements:
POWER SUPPLY
SW rel. 7.02.xx4 or
older SW rel. 7.03.x00 or
newer
Nominal Supply
Voltage 3.8 V 3.8 V
Max Supply Voltage 4.2 V 4.5 V
Supply voltage range
3.4 V - 4.2 V 3.22 V – 4.5 V