Telit Wireless Solutions GC864-QUAD-C2, GC864-PY-C2 Hardware User's Manual
GC864-QUAD-C2 / PY-C2
Hardware User Guide
GC864-QUAD-C2 and GC864-PY-C2 Hardware User Guide
1vv0300744 Rev.1 - 24/10/06
GC864-QUAD-C2/PY-C2 Hardware User Guide
1vv0300744 Rev.1 - 24/10/06
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 2 of 27
This document is relating to the following products:
Model P/N
GC864-QUAD-C2
GC864-PY-C2
3990250681
3990250686
GC864-QUAD-C2/PY-C2 Hardware User Guide
1vv0300744 Rev.1 - 24/10/06
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Contents
1 Overview.........................................................................................................................................5
2 Mechanical Dimensions..............................................................................................................6
3 Board to Board connector PINOUT connections ......................................................................7
4 Hardware Commands....................................................................................................................9
4.1 Turning ON the GC864-C2 .....................................................................................................9
4.2 Turning OFF the GC864-C2 .................................................................................................11
4.2.1 Hardware shutdown....................................................................................................................... 11
4.2.2 Hardware Unconditional Restart.................................................................................................... 11
5 Power Supply...............................................................................................................................13
6 General Design Rules..................................................................................................................14
7 Antenna ........................................................................................................................................15
8 Serial Port.....................................................................................................................................16
9 VAUX1 power output...................................................................................................................17
10 Audio Section Overview..............................................................................................................18
10.1 Audio Lines Characteristics ............................................................................................19
10.1.1 Microphone Paths Characteristic................................................................................................... 19
10.1.2 Ear Paths Characteristics .............................................................................................................. 19
10.2 Microphone Biasing..........................................................................................................20
10.2.1 On-board default biasing ............................................................................................................... 20
10.2.2 External biasing network................................................................................................................ 21
10.3 EVK2: the Evaluation Kit for Telit Modules ....................................................................21
11 SIM Design Guides ......................................................................................................................22
12 General Purpose I/O ....................................................................................................................23
13 DAC and ADC section .................................................................................................................24
14 Conformity Assessment Issues .................................................................................................25
15 SAFETY RECOMMANDATIONS..................................................................................................26
16 Document Change Log ...............................................................................................................27
GC864-QUAD-C2/PY-C2 Hardware User Guide
1vv0300744 Rev.1 - 24/10/06
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DISCLAIMER
The information contained in this document is proprietary information of Telit Communications S.p.A.
Telit Communications S.p.A. makes every effort to ensure the quality of the information it makes
available. Notwithstanding the foregoing, Telit Communications S.p.A. does not make any warranty as
to the information contained herein, and does not accept any liability for any injury, loss or damage of
any kind incurred by use of or reliance upon the information.
Telit Communications S.p.A. disclaims any and all responsibility for the application of the devices
characterized in this document, and notes that the application of the device must comply with the
safety standards of the applicable country, and where applicable, with the relevant wiring rules.
Telit Communications S.p.A. reserves the right to make modifications, additions and deletions to this
document at any time and without notice.
© 2006 Telit Communications S.p.A.
GC864-QUAD-C2/PY-C2 Hardware User Guide
1vv0300744 Rev.1 - 24/10/06
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1 Overview
The aim of this document is the description of some hardware solutions useful for developing a
product with the Telit GC864-C2 module.
In this document all the basic functions of a mobile phone will be taken into account; for each one of
them a proper hardware solution will be suggested and eventually the wrong solutions and common
errors to be avoided will be evidenced. Obviously this document cannot embrace the whole hardware
solutions and products that may be designed. The wrong solutions to be avoided shall be considered
as mandatory, while the suggested hardware configurations shall not be considered mandatory,
instead the information given shall be used as a guide and a starting point for properly developing your
product with the Telit GC864-C2 module.
For further hardware details that may not be explained in this document refer to the Telit GC864-C2
Product Description document where all the hardware information is reported.
NOTICE
GC864-C2
GC864-C
2
GC864-C2
GC864-C2
GC864-C
2
GC864-C2
GC864-C2
The information presented in this document is believed to be accurate and reliable. However, no respo nsibility is
assumed by Telit Communication S.p.A. for its use, nor any infringement of patents or other rights of third parties
which may result from its use. No license is granted by implication or otherwise under any patent rights of Telit
Communication S.p.A. other than for circuitry embodied in Telit products. This document is subject to change
without notice.
GC864-QUAD-C2/PY-C2 Hardware User Guide
1vv0300744 Rev.1 - 24/10/06
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2 Mechanical Dimensions
The Telit GC864-C2 module overall dimension are:
• Length: 50 mm
• Width: 33 mm
• Thickness: 5.6 mm
• Weight: 14gr
GC864-QUAD-C2/PY-C2 Hardware User Guide
1vv0300744 Rev.1 - 24/10/06
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3 Board to Board connector PINOUT
connections
Pin Signal Type Function
1 VBATT DC voltage Power
2 GND DC voltage Power
3 VBATT DC voltage Power
4 GND DC voltage Power
5 VBATT DC voltage Power
6 GND DC voltage Power
7 VBATT DC voltage Power
8 GND DC voltage Power
9 VBATT DC voltage Power
10 GND DC voltage Power
11 VBATT DC voltage Power
12 GND DC voltage Power
13 NC Don’t connect
14 ON_OFF* DC voltage Input command for switching power ON or OFF
15 SIMVCC DC voltage External SIM Power
16 SIMIN DC voltage External SIM inside detector
17 SIMRST DC voltage External SIM Reset
18 SIMIO 3V Only External SIM Data I/O
19 SIMCLK Digital Signal External SIM Clock
20 DAC_OUT Digital Output Digital/ Analog converter output
21 TGPIO_01 Digital In/Out General purpose
22 TGPIO_02/JDR Digital In/Out General purpose
23 TGPIO_03 Digital In/Out General purpose
24 TGPIO_04 Digital In/Out General purpose
25 VRTC DC voltage VRTC Backup capacitor
26 ADC_IN1 AC input Analog/Digital converter input
27 ADC_IN2 AC input Analog/Digital converter input
28 ADC_IN3 AC input Analog/Digital converter input
29 - - RESERVED
30 - - RESERVED
31 TGPIO_07/BUZZER Digital In/Out General purpose/Buzzer
32 OUT Digital Output General purpose
33 LED DC voltage Status indicator led
34 VAUX1 DC voltage Power output for external accessories
35 TGPIO_05/RFTXMON Digital In/Out General purpose
36 C125/RING Digital Output Output for Ring indicator signal (RI) to DTE
37 C108/DTR Digital Input Input for Data terminal ready signal (DTR) from DTE
38 C109/DCD Digital Output Output for Data carrier detect signal (DCD) to DTE
GC864-QUAD-C2/PY-C2 Hardware User Guide
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39 C105/RTS Digital Input Input for Request to send signal (RTS) from DTE
40 C106/CTS Digital Output Output for Clear to send signal (CTS) to DTE
41 C103/TXD Digital Input Serial data input (TXD) from DTE
42 C104/RXD Digital Output Serial data output to DTE
43 NC Don’t connect
44 NC Don’t connect
45 RX_Trace Digital Input RX Data for debug monitor
46 TX_Trace Digital Output TX Data for debug monitor
47 - - RESERVED
48 - - RESERVED
49 - - RESERVED
50 - - RESERVED
51 - - RESERVED
52 - - RESERVED
53 MIC_MT+ DEC Audio Input Handset microphone signal input; phase+,
54 MIC_MT- DEC Audio Input Handset microphone signal input; phase-,
55 EAR_MT+ Audio Output Handset earphone signal output, phase +
56 EAR_MT- Audio Output Handset earphone signal output, phase 57 EAR_HF+ DEC Audio Output Handsfree ear output, phase +
58 - - RESERVED
59 MIC_HF+ DEC Audio Input Handsfree microphone input; phase +
60 ANALOG GND AC voltage
For more information about balls position and pinout of GE864
module, please refer to 1vv0300694 GE-864 Hardware User Guide
GC864-QUAD-C2/PY-C2 Hardware User Guide
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4 Hardware Commands
4.1 Turning ON the GC864-C2
To turn on the GC864-C2 the ON# line must be tied low for at least 1 second and then released.
The maximum current that can be drained from the ON# line is 0,1 mA.
A simple circuit to do it is:
NOTE: don't use any pull up resistor on the ON# line, it is internally pulled up. Using pull up resistor may bring to
latch up problems on the GC864-C2 power regulator and improper power on/off of the module. The ON# line must
be connected only in open collector configuration.
NOTE: In this document all the lines that are inverted, hence have active low signals are labeled with a name that
ends with a "#" or with a bar over the name.
ON#
Power ON impulse
GND
R1
R2
Q1
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