Telit Communications S p A UC864AWA User Guide
UC864
-E-
AUTO
UC864-AWS-AUTO
Hardware User Guide
1vv0300795 Rev. 11 – 2010/11/18
UC864-E-AUTO / AWS-AUTO Hardware User Guide
1vv0300795 Rev.11 – 2010/11/18
This document is relating to the following products:
PRODUCT
UC864-E-AUTO
UC864-AWS-AUTO
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UC864-E-AUTO / AWS-AUTO Hardware User Guide
1vv0300795 Rev.11 – 2010/11/18
Disclaimer
The information contained in this document is the proprietary information of Telit
Communications S.p.A. and its affiliates (“TELIT”). The contents are confidential and
any disclosure to persons other than the officers, employees, agents or
subcontractors of the owner or licensee of this document, without the prior written
consent of Telit, is strictly prohibited.
Telit makes every effort to ensure the quality of the information it makes available.
Notwithstanding the foregoing, Telit 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 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 reserves the right to make modifications, additions and deletions to this
document due to typographical errors, inaccurate information, or improvements to
programs and/or equipment at any time and without notice. Such changes will,
nevertheless be incorporated into new editions of this application note.
All rights reserved.
© 2008, 2010 Telit Communications S.p.A.
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Contents
UC864-E-AUTO / AWS-AUTO Hardware User Guide
1vv0300795 Rev.11 – 2010/11/18
1. OVERVIEW ............................................................................................................................................................... 6
2. MECHANICAL DIMENSIONS ............................................................................................................................... 7
2.1. UC864-E-AUTO / AWS-AUTO M
3. UC864-E-AUTO / AWS-AUTO MODULE CONNECTIONS............................................................................... 8
3.1.
PIN-OUT ............................................................................................................................................................. 8
4. TEMPERATURE RANGE ..................................................................................................................................... 12
4.1. A
5. HARDWARE COMMANDS .................................................................................................................................. 14
5.1. T
5.2. I
5.3. T
5.4. S
6. POWER SUPPLY .................................................................................................................................................... 22
6.1. P
6.2. G
NTENNA CONNECTOR(S
URNING ON THE
NITIALIZATION AND ACTIVATION STATE
URNING
5.3.1.
5.3.2.
5.3.3.
UMMARY OF TURNING ON AND
OWER SUPPLY REQUIREMENTS
ENERAL DESIGN RULES
6.2.1.
6.2.2.
6.2.3.
OFF
Shutdown by Software Command
Hardware Shutdown
Hardware Unconditional Restart
Electrical Design Guidelines
Thermal Design Guidelines
Power Supply PCB Layout Guidelines
UC864-E-AUTO /
THE
UC864-E-AUTO /
) ................................................................................................................................... 13
.................................................................................................................................... 24
ECHANICAL DIMENSIONS
AWS-AUTO ............................................................................................. 14
................................................................................................................ 15
AWS-AUTO ........................................................................................... 17
........................................................................................................ 18
.............................................................................................................................. 19
......................................................................................................... 20
OFF
THE MODULE
.......................................................................................................................... 22
................................................................................................................ 24
.................................................................................................................. 30
.............................................................................................. 21
................................................................................................. 32
................................................................................. 7
7. ANTENNA(S) ........................................................................................................................................................... 34
7.1. GSM/WCDMA A
7.2. GSM/WCDMA A
8. LOGIC LEVEL SPECIFICATIONS ..................................................................................................................... 36
8.1. R
9. USB PORT................................................................................................................................................................ 38
9.1. USB
10.
10.1. M
10.2. RS232 L
10.3. 5V UART L
11.
11.1. S
11.2. E
ESET SIGNAL
TRANSCEIVER SPECIFICATIONS
SERIAL PORTS .................................................................................................................................................. 40
ODEM SERIAL PORT
EVEL TRANSLATION
AUDIO SECTION OVERVIEW ....................................................................................................................... 48
ELECTION MODE
LECTRICAL CHARACTERISTICS
11.2.1. Input Lines (MIC1 and MIC2) Characteristics
11.3. OUTPUT LINES (
NTENNA REQUIREMENTS
NTENNA - INSTALLATION GUIDELINES
.................................................................................................................................................... 37
.......................................................................................................................................... 40
............................................................................................................................... 43
EVEL TRANSITION
................................................................................................................................................ 48
S
PEAKER
.............................................................................................................................. 46
........................................................................................................................... 50
)
.............................................................................................................................. 51
.......................................................................................................... 34
....................................................................................... 35
.................................................................................................................... 39
..................................................................................... 50
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11.3.1. Output Lines Characteristics
12.
GENERAL PURPOSE I/O ................................................................................................................................. 52
UC864-E-AUTO / AWS-AUTO Hardware User Guide
1vv0300795 Rev.11 – 2010/11/18
................................................................................................................ 51
12.1. L
12.2. U
12.3. U
12.4. U
12.5. U
12.6. U
12.7. U
12.8. M
OGIC LEVEL SPECIFICATIONS
SING A
GPIO P
SING A
GPIO P
SING THE RF TRANSMISSION CONTROL
SING THE
SING THE ALARM OUTPUT
SING THE BUZZER OUTPUT
AGNETIC BUZZER CONCEPTS
AD AS INPUT
AD AS OUTPUT
RFTXMON O
12.8.1. Short Description
12.8.2. Frequency Behavior
12.8.3. Power Supply Influence
12.8.4. Working Current Influence
12.9. U
SING THE TEMPERATURE MONITOR FUNCTION
12.9.1. Short Description
12.9.2. Allowed GPIO
12.10. I
12.11. RTC B
12.12. VAUX1 P
13.
13.1. DAC C
NDICATION OF NETWORK SERVICE AVAILABILITY
DAC AND ADC SECTION ................................................................................................................................ 64
ONVERTER
13.1.1. Description
13.1.2. Enabling DAC
YPASS OUT
OWER OUTPUT
.......................................................................................................................................... 60
........................................................................................................................................... 63
................................................................................................................................................ 64
.............................................................................................................................................. 64
.......................................................................................................................................... 64
13.1.3. Low Pass Filter Example
13.2. ADC C
13.2.1. Description
ONVERTER
................................................................................................................................................ 65
.............................................................................................................................................. 65
13.2.2. Using ADC Converter
............................................................................................................................. 54
.............................................................................................................................. 55
........................................................................................................................... 55
GPIO4 .................................................................................................. 56
UTPUT
GPIO5 .............................................................................................................. 56
GPIO6 ..................................................................................................................... 56
GPIO7 .................................................................................................................... 57
............................................................................................................................ 58
................................................................................................................................... 58
............................................................................................................................... 59
........................................................................................................................ 59
................................................................................................................... 59
................................................................................................... 60
................................................................................................................................... 60
............................................................................................. 62
................................................................................................................................. 63
...................................................................................................................... 65
............................................................................................................................. 65
14.
MOUNTING THE MODULE ON YOUR BOARD ......................................................................................... 66
14.1. A
14.2. C
14.3. T
14.4. M
15.
APPLICATION GUIDE ..................................................................................................................................... 71
15.1. D
15.2. B
15.3. SIM
15.4. EMC
16.
PACKING SYSTEM ........................................................................................................................................... 74
17.
CONFORMITY ASSESSMENT ISSUES ......................................................................................................... 75
18.
SAFETY RECOMMENDATIONS .................................................................................................................... 77
19.
DOCUMENT CHANGE LOG ........................................................................................................................... 78
PPLICATION
LEARANCE AREA
HERMAL DISSIPATION
ODULE SOLDERING
EBUG OF THE
YPASS CAPACITOR ON POWER SUPPLIES
INTERFACE
RECOMMENDATIONS
PCB L
AYOUT
................................................................................................................................. 67
............................................................................................................................................... 69
........................................................................................................................................ 69
........................................................................................................................................... 70
UC864-E-AUTO / AWS-AUTO
.................................................................................................................................................. 72
................................................................................................................................... 73
IN PRODUCTION
............................................................................................................ 72
......................................................................... 71
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upoštevati projektna navodila, opisana v tem
E-
AUTO
/ AWS
UC864-E-AUTO / AWS-AUTO Hardware User Guide
1vv0300795 Rev.11 – 2010/11/18
1. Overview
Overview
OverviewOverview
The aim of this document is the description of some hardware solutions useful for
developing a product with the Telit UC864-E-AUTO and UC864-AWS-AUTO modules.
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 must be considered as mandatory, while
the suggested hardware configurations must not be considered mandatory, instead
the information given must be used as a guide and a starting point for properly
developing your product with the Telit UC864-E-AUTO & UC864-AWS-AUTO modules.
For further hardware details that may not be explained in this document refer to the
Telit UC864-E–AUTO & UC864-AWS-AUTO Product Description document where all
the hardware information is reported.
NOTICE:
(EN) The integration of the GSM/GPRS/EGPRS/WCDMA/HSDPA UC864-E-AUTO & UC864AWS-AUTO cellular module within user application must be done according to the design
rules described in this manual.
(IT) L’integrazione del modulo cellulare GSM/GPRS/EGPRS/WCDMA/HSDPA UC864- EAUTO e UC864-AWS-AUTO all’interno dell’applicazione dell’utente dovrà rispettare le
indicazioni progettuali descritte in questo manuale.
(DE) Die Integration des UC864- E-AUTO & UC864-AWS-AUTO
GSM/GPRS/EGPRS/WCDMA/HSDPA Mobilfunk-Moduls in ein Gerät muß gemäß der in
diesem Dokument beschriebenen Kunstruktionsregeln erfolgen
(SL) Integracija GSM/GPRS/EGPRS/WCDMA/HSDPA UC864- E-AUTO & UC864-AWSAUTO modula v uporabniški aplikaciji bo morala
piročniku.
(SP) La utilización del modulo GSM/GPRS/EGPRS/WCDMA/HSDPA UC864- E-AUTO &
UC864-AWS-AUTO debe ser conforme a los usos para los cuales ha sido deseñado
descritos en este manual del usuario.
(FR) L’intégration du module cellulaire GSM/GPRS/EGPRS/WCDMA/HSDPA UC864- EAUTO & UC864-AWS-AUTO dans l’application de l’utilisateur sera faite selon les règles de
conception décrites dans ce manuel.
(HE)
The information presented in this document is believed to be accurate and reliable. However,
no responsibility is assumed by Telit Communications 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 Communications S.p.A. other than
for circuitry embodied in Telit products. This document is subject to change without notice.
UC864-
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UC864-E-AUTO / AWS-AUTO Hardware User Guide
1vv0300795 Rev.11 – 2010/11/18
2. Mechanical Dimensions
Mechanical Dimensions
Mechanical DimensionsMechanical Dimensions
2.1. UC864-E-AUTO / AWS-AUTO Mechanical Dimensions
The Telit UC864-E-AUTO / AWS-AUTO module overall dimensions are:
• Length: 36.2 mm
• Width: 30.0 mm
• Thickness: 5.1mm
Reproduction forbidden without Telit Communications S.p.A’s. written authorization - All Rights Reserved. Page 7 of 78
Internal
InternalInternal
Internal
Type
TypeType
Type
UC864-E-AUTO / AWS-AUTO Hardware User Guide
1vv0300795 Rev.11 – 2010/11/18
3. UC864
UC864----EEEE----AUTO
UC864UC864
AUTO / AWS
AUTOAUTO
/ AWS----AUTO
/ AWS/ AWS
AUTO MMMModule
AUTO AUTO
odule CCCConnections
odule odule
onnections
onnections onnections
3.1. PIN-OUT
UC864-E-AUTO / AWS-AUTO uses an 80 pin Molex p.n. 53949-0878 male connector
for the connections with the external applications. This connector matches the
54150-0878 models.
Pin
Pin Signal
PinPin
1111 VBATT - Main power supply Power
2222 VBATT - Main power supply Power
3333 VBATT - Main power supply Power
4444 VBATT - Main power supply Power
5555 GND - Ground Power
6666 GND - Ground Power
7777 GND - Ground Power
8888 AXE I Hands-free switching CMOS 2.6V
9999 EAR_HF+ AO Hands-free ear output, phase + Audio
10
10 EAR_HF- AO Hands-free ear output, phase - Audio
1010
11
11 EAR_MT+ AO Handset earphone signal output, phase + Audio
1111
12
12 EAR_MT- AO Handset earphone signal output, phase - Audio
1212
13
13 MIC_HF+ AI Hands-free microphone input; phase + Audio
1313
14
14 MIC_HF- AI Hands-free microphone input; phase - Audio
1414
15
15 MIC_MT+ AI Handset microphone signal input; phase+ Audio
1515
16
16 MIC_MT- AI Handset microphone signal input; phase- Audio
1616
1111
18
18
SIMVCC -
1818
19
19 SIMRST O
1919
20
20 SIMIO I/O External SIM signal - Data I/O 1.8 / 3V
2020
21
21 SIMIN I External SIM signal - Presence (active low) CMOS 2.6V
2121
22
22 SIMCLK O
2222
23
23 RX_TRACE I RX Data for debug monitor CMOS 2.6V
2323
24
24 TX_TRACE O TX Data for debug monitor CMOS 2.6V
2424
Signal I/O
SignalSignal
I/O
I/OI/O
Function
Function
FunctionFunction
Power Supply
Power Supply
Power SupplyPower Supply
Audio
Audio
AudioAudio
SIM Card Interface
SIM Card Interface
SIM Card InterfaceSIM Card Interface
External SIM signal – Power supply for the SIM 1.8 / 3V
External SIM signal – Reset 1.8 / 3V
External SIM signal – Clock 1.8 / 3V
Trace
Trace
TraceTrace
Pull up
Pull up
Pull upPull up
1
On this line a maximum of 10nF bypass capacitor is allowed
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Internal
InternalInternal
Internal
Type
TypeType
Type
Analog input used to sense whether a
Input command for switching power ON or OFF (toggle
Pulled up on
UC864-E-AUTO / AWS-AUTO Hardware User Guide
1vv0300795 Rev.11 – 2010/11/18
Pin
Pin Signal
PinPin
25
25 C103/TXD I Serial data input (TXD) from DTE Pull-Down CMOS 2.6V
2525
26
26 C104/RXD O Serial data output to DTE Pull-Up CMOS 2.6V
2626
27
27 C107/DSR O Output for Data set ready signal (DSR) to DTE Pull-Down CMOS 2.6V
2727
28
28 C106/CTS O Output for Clear to send signal (CTS) to DTE Pull-Up CMOS 2.6V
2828
29
29 C108/DTR I Input for Data terminal ready signal (DTR) from DTE Pull-Up CMOS 2.6V
2929
30
30 C125/RING O Output for Ring indicator signal (RI) to DTE Pull-Up CMOS 2.6V
3030
31
31 C105/RTS I Input for Request to send signal (RTS) from DTE Pull-Down CMOS 2.6V
3131
32
32 C109/DCD O Output for Data carrier detect signal (DCD) to DTE Pull-Up CMOS 2.6V
3232
Signal I/O
SignalSignal
I/O
I/OI/O
Function
Function
FunctionFunction
Prog. / Data + Hw Flow Control
Prog. / Data + Hw Flow Control
Prog. / Data + Hw Flow ControlProg. / Data + Hw Flow Control
Miscellaneous Functions
Miscellaneous Functions
Miscellaneous FunctionsMiscellaneous Functions
Pull up
Pull up
Pull upPull up
35
35 USB_ID AI
3535
36
36 PCM_CLOCK I/O PCM clock out Pull-Down CMOS 2.6V
3636
DAC and ADC
DAC and ADC
DAC and ADCDAC and ADC
37
37 ADC_IN1 AI Analog/Digital converter input A/D
3737
38
38 ADC_IN2 AI Analog/Digital converter input A/D
3838
39
39 ADC_IN3 AI Analog/Digital converter input A/D
3939
40
40 DAC_OUT AO Digital/Analog converter output D/A
4040
45
45 STAT_LED O Status indicator led CMOS 1.8V
4545
46
46 GND - Ground Ground
4646
48
48 USB_VBUS
4848
49
49 PWRMON O Power ON Monitor 1KΩ CMOS 2.6V
4949
50
50 VAUX1 - Power output for external accessories
5050
51
51 CHARGE AI Charger input
5151
52
52 CHARGE AI Charger input Power
5252
53
53 ON/OFF I
5353
54
54 RESET I Reset input 10KΩ
5454
55
55 VRTC AO Power supply for RTC block Power
5555
56
56 GPIO_19 I/O GPIO19 Configurable GPIO CMOS 2.6V
5656
57
57 GPIO_11 I/O GPIO11 Configurable GPIO CMOS 2.6V
5757
58
58 GPIO_20 I/O GPIO20 Configurable GPIO CMOS 2.6V
5858
59
59 GPIO_04 I/O GPIO4 Configurable GPIO CMOS 2.6V
5959
60
60 GPIO_14 I/O GPIO14 Configurable GPIO CMOS 2.6V
6060
61
61 GPIO_15 I/O GPIO15 Configurable GPIO CMOS 2.6V
6161
peripheral device is connected, and
determine the peripheral type, a host
or a peripheral
Miscellaneous Functions
Miscellaneous Functions
Miscellaneous FunctionsMiscellaneous Functions
AI
Power supply for the internal USB transceiver. This pin is
/A
configured as an analog input or an analog output depending
O
upon the type of peripheral device connected.
command).
Telit GPIOs
Telit GPIOs
Telit GPIOsTelit GPIOs
Analog
47K
Ω
pull-down
10K
Ω
pull-down
4.4V ~5.25V
Power
chip
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Internal
InternalInternal
Internal
Type
TypeType
Type
GPIO_17/
3.0V
3.0V
UC864-E-AUTO / AWS-AUTO Hardware User Guide
1vv0300795 Rev.11 – 2010/11/18
Pin
Pin Signal
PinPin
62
62 GPIO_12 I/O GPIO12 Configurable GPIO CMOS 2.6V
6262
63
63 GPIO_10/ PCM_TX I/O GPIO10 Configurable GPIO / PCM Data Output Pull-Down CMOS 2.6V
6363
64
64 GPIO_22 I/O GPIO22 Configurable GPIO CMOS 1.8V
6464
65
65 GPIO_18/ PCM_RX I/O GPIO18 Configurable GPIO / PCM Data input Pull-Down CMOS 2.6V
6565
66
66 GPIO_03 I/O GPIO3 Configurable GPIO CMOS 2.6V
6666
67
67 GPIO_08 I/O GPIO8 Configurable GPIO CMOS 2.6V
6767
68
68 GPIO_06 / ALARM I/O GPIO6 Configurable GPIO / ALARM CMOS 2.6V
6868
70
70 GPIO_01 I/O GPIO1 Configurable GPIO CMOS 2.6V
7070
71
71
7171
PCM_SYNC
72
72 GPIO_21 I/O GPIO21 Configurable GPIO CMOS 2.6V
7272
73
73 GPIO_07/ BUZZER I/O GPIO7 Configurable GPIO / Buzzer CMOS 2.6V
7373
74
74 GPIO_02 I/O GPIO02 I/O pin CMOS 2.6V
7474
75
75 GPIO_16 I/O GPIO16 Configurable GPIO CMOS 2.6V
7575
76
76 GPIO_09 I/O GPIO9 Configurable GPIO CMOS 2.6V
7676
77
77 GPIO_13 I/O GPIO13 Configurable CMOS 2.6V
7777
78
78 GPIO_05/ RFTXMON I/O GPIO05 Configurable GPIO / Transmitter ON monitor CMOS 2.6V
7878
Signal I/O
SignalSignal
I/O
I/OI/O
I/O GPIO17 Configurable GPIO / PCM Sync Pull-Down CMOS 2.6V
Function
Function
FunctionFunction
USB Interface
USB Interface
USB InterfaceUSB Interface
Pull up
Pull up
Pull upPull up
77779999 USB_D+ I/O USB differential Data (+)
80
80 USB_D- I/O USB differential Data (-)
8080
RESERVED
RESERVED
RESERVEDRESERVED
17
17 -
1717
33
33
3333
34
34
3434
41
41 -
4141
42
42 -
4242
43
43 -
4343
44
44 -
4444
47
47 -
4747
69
69 -
6969
~3.6V
~3.6V
NOTE: RESERVED pins must not be connected
RTS must be connected to the GND (on the module side) if flow control is not used
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UC864-E-AUTO / AWS-AUTO Hardware User Guide
1vv0300795 Rev.11 – 2010/11/18
Note
Note::::
NoteNote
If not used, almost all pins must be left disconnected. The only exceptions are the
following:
Pin
Pin
PinPin
1111 VBATT Main power supply
2222 VBATT Main power supply
3333 VBATT Main power supply
4444 VBATT Main power supply
5555 GND Ground
6666 GND Ground
7777 GND Ground
46
46 GND Ground
4646
25
25 C103/TXD Serial data input (TXD) from DTE
2525
26
26 C104/RXD Serial data output to DTE
2626
31
31 C105/RTS Input for Request to send signal (RTS) from DTE
3131
53
53 ON/OFF
5353
54
54 RESET Reset input
5454
Signal
Signal Function
SignalSignal
Input command for switching power ON or OFF (toggle
command).
Function
FunctionFunction
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UC864-E-AUTO / AWS-AUTO Hardware User Guide
1vv0300795 Rev.11 – 2010/11/18
4. TEMPERATURE RANGE
TEMPERATURE RANGE
TEMPERATURE RANGETEMPERATURE RANGE
The UC864-E-AUTO / AWS-AUTO Temperature ranges are:
Reference Ambient Temperature
Reference Ambient Temperature
Reference Ambient TemperatureReference Ambient Temperature
Normal Operating -10°C to +55°C
Extended Operating -20°C to +70°C
Extreme Range -30°C to +85°C
Storage -40°C to +85°C
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4.1. Antenna Connector(s)
The UC864-E-AUTO / AWS-AUTO module is designed with a 50 Ohm RF PAD that
permits to interface it with an application equipped by a Rosenberger coaxial Board
to board connector.
The counterpart suitable is a Rosenberger 99CI106-030L5.
UC864-E-AUTO / AWS-AUTO Hardware User Guide
1vv0300795 Rev.11 – 2010/11/18
Suggested footprint on the application side:
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UC864-E-AUTO / AWS-AUTO Hardware User Guide
1vv0300795 Rev.11 – 2010/11/18
5. Hardware Commands
Hardware Commands
Hardware CommandsHardware Commands
5.1. Turning ON the UC864-E-AUTO / AWS-AUTO
To turn on UC864-E-AUTO / AWS-AUTO, the pad ON# must be tied low for at least 1
second and then released.
The maximum current that can be drained from the ON# pad is 0,1 mA.
A simple
to do it is:
Power ON impulse
R1
Q1
R2
GND
ON#
circuit
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UC864-E-AUTO / AWS-AUTO Hardware User Guide
5.2. Initialization and Activation state
Upon turning on UC864-E-AUTO / AWS-AUTO, the module is not activated yet
because the boot sequence of UC864-E-AUTO / AWS-AUTO is still going on internally.
It takes about 10 seconds to complete the initializing the module internally.
For this reason, it would be useless to try to access UC864-E-AUTO/ AWS-AUTO
during a
AWS-AUTO needs at least 10 seconds after the PWRMON goes High.
Initialization state
as below. To get the desirable stability, UC864-E-AUTO /
1vv0300795 Rev.11 – 2010/11/18
During the
waiting for the
Initialization state
Activation state
, any kind of AT-command is not available. DTE must be
to communicate with UC864-E-AUTO / AWS-AUTO.
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In this document all the lines are inverted. Active low signals are labeled with a name
turns fully on also by supplying power to the Charge pad
UC864-E-AUTO / AWS-AUTO Hardware User Guide
1vv0300795 Rev.11 – 2010/11/18
NOTE:
NOTE:
NOTE: NOTE:
To check if the UC864-E-AUTO / AWS-AUTO has powered on, the hardware line
PWRMON must be monitored. When PWRMON goes high, the module has powered
on.
NOTE:
NOTE:
NOTE: NOTE:
Do not use any pull up resistor on the ON/OFF# line, it is internally pulled up. Using
pull up resistor may bring to latch up problems on the UC864-E-AUTO / AWS-AUTO
power regulator and improper power on/off of the module. The line ON/OFF# must
be connected only in open collector configuration.
NOTE:
NOTE:
NOTE: NOTE:
that ends with a "#" or with a bar over the name.
NOTE:
NOTE:
NOTE: NOTE:
UC864-E-AUTO / AWS-AUTO
(provided there is a battery on the VBATT pads).
For example:
1- Let us assume you need to drive the ON/OFF# pad with a totem pole output of a
+1.8/5 V microcontroller (uP_OUT1):
10k
1.8 / 5V
1s
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UC864-E-AUTO / AWS-AUTO Hardware User Guide
1vv0300795 Rev.11 – 2010/11/18
5.3. Turning OFF the UC864-E-AUTO / AWS-AUTO
Turning off the device can be done in three ways:
• by software command (see UC864-E-AUTO / AWS-AUTO Software User
Guide)
• by hardware shutdown
• by Hardware Unconditional Restart
When the device is shut down by software command or by hardware shutdown, it
issues to the network a detach request that informs the network that the device will
not be reachable any more.
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UC864-E-AUTO / AWS-AUTO Hardware User Guide
5.3.1. Shutdown by Software Command
UC864-E-AUTO / AWS-AUTO can be shut down by a software command.
When a shut down command is sent, UC864-E-AUTO / AWS-AUTO goes into the
finalization state and finally will shut down PWRMON at the end of this state.
The period of the finalization state can differ according to the situation in which the
UC864-E-AUTO / AWS-AUTO is so it cannot be fixed definitely.
Normally it will be above 10 seconds later from sending a shut down command and
DTE should monitor the status of PWRMON to see the actual power off.
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TIP:
TIP:
TIP: TIP:
To check if the device has powered off, hardware line PWRMON must be monitored.
When PWRMON goes low, the device has powered off.
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5.3.2. Hardware Shutdown
To turn OFF UC864-E-AUTO / AWS-AUTO the pad ON/OFF# must be tied low for at
least 2 seconds and then released. Same circuitry and timing for the power on must
be used.
When the hold time of ON/OFF# is above 2 seconds, UC864-E-AUTO / AWS-AUTO
goes into the finalization state and finally will shut down PWRMON at the end of this
state.
The period of the finalization state can differ according to the situation in which the
UC864-E-AUTO / AWS-AUTO is so it cannot be fixed definitely.
Normally it will be above 10 seconds later from releasing ON/OFF# and DTE should
monitor the status of PWRMON to see the actual power off.
UC864-E-AUTO / AWS-AUTO Hardware User Guide
1vv0300795 Rev.11 – 2010/11/18
TIP:
TIP:
TIP: TIP:
To check if the device has powered off, hardware line PWRMON must be monitored.
When PWRMON goes low, the device has powered off.
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UC864-E-AUTO / AWS-AUTO Hardware User Guide
5.3.3. Hardware Unconditional Restart
To unconditionally restart UC864-E-AUTO / AWS-AUTO, the pad RESET# must be tied
low for at least 200 milliseconds and then released.
A simple circuit to do it is:
Unconditional Restart
impulse
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RESET#
GND
NOTE:
NOTE:
NOTE: NOTE:
Do not use any pull up resistor on the RESET# line or any totem pole digital output.
Using pull up resistor may bring to latch up problems on the UC864-E-AUTO / AWSAUTO power regulator and improper functioning of the module. The line RESET#
must be connected only in open collector configuration.
TIP:
TIP:
TIP: TIP:
The unconditional hardware Restart must always be implemented on the boards and
the software must use it as an emergency exit procedure.
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UC864-E-AUTO / AWS-AUTO Hardware User Guide
1vv0300795 Rev.11 – 2010/11/18
For example:
1- Let us assume you need to drive the RESET# pad with a totem pole output of a
+1.8/5 V microcontroller (uP_OUT2):
10k
+1.8 / 5V
5.4. Summary of Turning ON and OFF the module
Below chart describes the overall sequences for Turning ON and OFF.
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UC864-E-AUTO / AWS-AUTO Hardware User Guide
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6. Power Supply
Power Supply
Power SupplyPower Supply
The power supply circuitry and board layout are a very important part in the full
product design and they strongly reflect on the product overall performances. Read
carefully the requirements and the guidelines that will follow for a proper design.
6.1. Power Supply Requirements
The UC864-E-AUTO / AWS-AUTO power requirements are:
Power Supply
Power Supply
Power SupplyPower Supply
Nominal Supply Voltage 3.8V
Max Supply Voltage 4.2V
Supply Voltage Range 3.4V – 4.2V
UC864
UC864----EEEE----AUTO
UC864UC864
Mode
Mode Average(mA)
ModeMode
IDLE mode Stand by mode; no call in progress
AT+CFUN=1
AT+CFUN=4
AT+CFUN=0 or
AT+CFUN=5
WCDMA TX and RX mode
WCDMA Voice 690 WCDMA voice channel
WCDMA data 680 WCDMA data channel
HSDPA 730 HSDPA data channel
GSM TX and RX mode
GSM Voice 320 GSM voice channel
GPRS Class12 650 GPRS data channel
EDGE Class12 430 EDGE data channel
WCDMA 22.0
GSM 15.0
WCDMA 17.8
GSM 17.8
WCDMA 4.1 / 1.3*
GSM 3.3 / 1.3*
Average(mA) Mode D
Average(mA)Average(mA)
* Worst/best case depends on network configuration and is not under module control.
AUTO/ AWS
/ AWS----AUTO
AUTOAUTO
/ AWS/ AWS
Normal mode; full functionality of the module
Disabled TX and RX; modules is not registered on the
network
Power saving; CFUN=0 module registered on the
network and can receive voice call or an SMS; but it is
not possible to send AT commands; module wakes up with
an unsolicited code (call or SMS) or rising RTS line.
CFN=5 full functionality with power saving;
Module registered on the network can receive
incoming call sand SMS
AUTO
AUTOAUTO
Mode Description
Mode DMode D
escription
escriptionescription
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UC864-E-AUTO / AWS-AUTO Hardware User Guide
1vv0300795 Rev.11 – 2010/11/18
In GSM/GPRS mode, RF transmission is not continuous and it is packed into bursts at
a base frequency of about 216 Hz, and the relative current peaks can be as high as
about 2A. Therefore the power supply has to be designed in order to withstand these
current peaks without big voltage drops; this means that both the electrical design
and the board layout must be designed for this current flow. If the layout of the PCB
is not well designed, a strong noise floor is generated on the ground; this will reflect
on all the audio paths producing an audible annoying noise at 216 Hz; if the voltage
drops during the peak, current absorption is too much. The device may even shut
TIP:
TIP:
TIP: TIP:
The electrical design for the Power supply must be made ensuring that it will be
capable of a peak current output of at least 2A.
down as a consequence of the supply voltage drop.
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UC864-E-AUTO / AWS-AUTO Hardware User Guide
6.2. General Design Rules
The principal guidelines for the Power Supply Design embrace three different design
steps:
• the electrical design
• the thermal design
• the PCB layout
6.2.1. Electrical Design Guidelines
The electrical design of the power supply depends strongly on the power source
where this power is drained. We will distinguish them into three categories:
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• +5V input (typically PC internal regulator output)
• +12V input (typically automotive)
• battery
6.2.1.1. + 5V Input Source Power Supply Design Guidelines
• The desired output for the power supply is 3.8V, hence there is not a big
difference between the input source and the desired output and a linear
regulator can be used. A switching power supply will not be suited
because of the low drop-out requirements.
• When using a linear regulator, a proper heat sink must be provided in
order to dissipate the power generated.
• A Bypass low ESR capacitor of adequate capacity must be provided in
order to cut the current absorption peaks close to UC864-E-AUTO / AWSAUTO, a 100µF tantalum capacitor is usually suited.
• Make sure the low ESR capacitor on the power supply output (usually a
tantalum one) is rated at least 10V.
• A protection diode must be inserted close to the power input, in order to
save UC864-E-AUTO / AWS-AUTO from power polarity inversion.
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