Telit Wireless Solutions UC864 manual

UC864 Hardware User Guide 1vv0300766a Rev.1 31/01/08[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 2 of 51 This document is relating to the following products: UC864-E 3990250 694[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 3 of 51 Contents 1  Overview ...................................................................................................................... ..... 6  2  Mechanical Dime[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 4 of 51 10.3  Selection ..................................................................................................................... ........... 38  10.4  Electrical [...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 5 of 51 DISCLAIMER The information contained in this document is the proprietary information of Telit Communications S.p.A. and its affiliates (“TELIT”). The contents are confident[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 6 of 51 1 Overview The aim of this document is the description of some h a rdware solutions u seful for developing a product with the Telit UC864-E module . In this document all the ba[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 7 of 51 2 Mechanical Dimensions The Telit UC864-E module overall dimensions are: • Length: 36.2 mm • Width: 30 mm • Thickness: 4.8mm[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 8 of 51 3 UC864-E module connections 3.1 PIN-OUT UC864-E uses an 80-pin Molex p.n. 53949-0878 male connector for the connections with the e xternal applications. This connector matches[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 9 of 51 Pin Signal I/O Function Internal Pull up Typ e UC864-E 23 RX_TRACE I RX Data for debug monitor CMOS 2.6V 24 TX_TRACE O TX Data for debug monitor CMOS 2.6V Prog. / Data + Hw Flo[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 10 of 51 Pin Signal I/O Function Internal Pull up Typ e UC864-E 61 TGPIO_15 I/O Telit GPIO15 Configurable GPIO CMOS 2.6V 62 TGPIO_12 I/O Telit GPIO12 Configurable GPIO CMOS 2.6V 63 TGP[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 11 of 51 NOTE: If not used, almost all pins should be left disconnected. The only exceptions are the follo wing pins: Pin Signal Function 1 VBATT Main power supply 2 VBATT Main power s[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 12 of 51 4 Hardware Commands 4.1 Turning ON the UC864-E To turn on UC864-E, the pad ON# must be tied low for at least 1 second and then released. The maximum current that can be draine[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 13 of 51 For example: 1- Let's assume you need to drive the ON# pad with a totem pole output of a 1.8/5 V microcontroller (uP_OUT1): 2- Let's assume you need to drive the ON#[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 14 of 51 4.2 Turning OFF the UC864-E The turning off of the device can be done in three ways: • By software command (s ee UC864-E Software User Guide) • By hardware shutdown • By[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 15 of 51 4.2.2 Hardware Unconditional Restart To unconditionally restart UC864-E, the pad RESET# must be tied low for at least 200 milliseconds and then released. The maximum current t[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 16 of 51 For example: 1- Let's assume you need to drive the RESET# pad with a totem pole output of a +1.8/5 V micro controller (uP_OUT2): * This signal is internally pulled up so [...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 17 of 51 5 Power 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 perfo rmances,[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 18 of 51 If the layout of the PCB is not well designed a strong noise floor is gen erated on the ground and the supply; this will reflect on all the au dio paths producing an audible a[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 19 of 51 5.2 General Design Rules The principal guidelines for the Power Supply Design embrace three different design steps: • The electrical design • The thermal design • The PC[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 20 of 51 An example of linear regulator with 5V input is: 5.2.1.2 + 12V input Source Power Supply Design Gui delines • The desired output for the power supply is 3.8V; hence due to t[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 21 of 51 An example of switching regulator with 12V input is in the below schematic (it is split in 2 parts):[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 22 of 51 5.2.1.3 Battery Source Power Supply Design Guidelines • The desired nominal output for the power supply is 3.8V and the maximum voltage allowed is 4.2V, hence a single 3.7V [...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 23 of 51 The constant voltage charge proceeds with a fixed voltage regulator (very accurately set to the maximum battery voltage) and hence the current will decrease while the battery [...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 24 of 51 5.2.2 Thermal Design Guidelines The thermal design for the power supply heat sink should be done with the following specifications: • Average current consumption during WCDM[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 25 of 51 5.2.3 Power Supply PCB layout Guidelines As seen on the electrical design guidelines the pow er supply shall have a low ESR capacitor on the output to cut the current peaks an[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 26 of 51 6 Antenna The antenna connection and board layout design are the most important part in the full product design and they strongly reflect on the product overall performances, [...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 27 of 51 6.2 Antenna - Installation Guidelines • Install the antenna in a place covered by the GSM/WCDMA signal. • The Antenna must be installed to provide a separation distance of[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 28 of 51 7 Logic level specifications Where not specifically stated, all the interface circuits work at 2.6V CMOS logic levels. The following table shows the logic level specifications[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 29 of 51 7.1 Reset signal Signal Function I/O PIN Number RESET Phone reset I 54 RESET is used to reset the UC864-E module . Whenever this signal is pulled low, UC864-E is reset. When t[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 30 of 51 8 Serial Ports The serial port on the Telit UC864-E is the interface between the module and OEM hardware. 2 serial ports are available on the module: • MODE M SERIAL PORT ?[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 31 of 51 The signals of the UC864-E serial port are: RS232 Pin Number Signal UC864-E Pad Number Name Usage 1 DCD dcd_uart 32 Data Carrier Detect Output from the UC864-E that indicates [...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 32 of 51 8.2 RS232 level translation In order to interface the Telit UC864-E with a PC com port or a RS232 (EIA/TIA-232) application a level translator is required. This level translat[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 33 of 51 An example of level translation circuitry of this kind is: The example is done with a SIPEX SP3282EB RS232 Tran sceiver that could accept supply voltages lower than 3V DC. NOT[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 34 of 51 Second solution could be done using a MAX IM transceiver (MAX218) In this case the compliance with RS232 (+-5V) is possible. Another level adapting method could be done using [...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 35 of 51 5V UART level translation If the OEM application uses a microcontroller with a se rial port (UART) that works at a voltage different from 2.6 – 2.9V, then a circuitry has to[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 36 of 51 NOTE: The UART input line TXD (rx_uart) of UC864-E is NOT internally pulled up with a re sistor, so there may be the need to place an external 47 K Ω pull-up resistor, eithe[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 37 of 51 9 USB Port UC864-E includes an integrated universal serial bus (USB) transceiver, compliant with USB 2.0 specification, for interfacing UC864-E to a comp uter as a USB periphe[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 38 of 51 10 Audio Section Overview 10.1 Generality The UC864-E Audio Section provides two audio paths both in transmit and in receive sections, active only one at time. Two buffering a[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 39 of 51 10.4 Electrical Characteristics 10.4.1 Input lines (microphone) The two transmit blocks are fully equivalent, connected in Differential mode Line coupling AC (*) Line type Bal[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 40 of 51 10.4.2 Output lines (speaker) During designing, remember that while no differenc e could be if the amplifiers drive an external amplifier , there are slightly different electr[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 41 of 51 11 General Purpose I/O The general-purpose I/O pads can be configured to act in three different ways: • Input • Output • Alternate function (internally controlled) Input[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 42 of 51 Not all GPIO pads support all these three modes: • GPIO5 supports all three modes and can be input, output, RFTX monitor output (Alternate function) • GPIO6 supports all t[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 43 of 51 11.2 Using a GPIO Pad as INPUT The GPIO pads, when used as inputs, can be connected to a digital output of another device and report its status, provided this device has inter[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 44 of 51 11.5 Using the Buzzer Output GPIO7 The GPIO7 pad, when configured as Buzzer Output, is controlled by the UC864-E module and will drive with appropriate square waves a Buzzer d[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 45 of 51 11.6 Indication of network service availability The STAT_LED pin status shows information on the network service availability and Call status. In the UC864-E modules, the STAT[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 46 of 51 11.7 RTC Bypass out The VRTC pin brings out the Real Time Clock supply, which is separate from the rest of the digital part, allowing having only RTC going on when all the oth[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 47 of 51 11.9 Mounting UC864-E on your board The position of the Molex board-to-board connector and the pin 1 are shown in the following picture. NOTE: metal tabs present on UC864-E sh[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 48 of 51 11.9.1 Debug of the UC864-E in production To test and debug the mounting of the UC864-E, we strongly recommend to foreseen test pads on the host PCB, in order to check the con[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 49 of 51 12 Conformity Assessment Issues The UC864-E module is assessed to be conforming to the R&TTE Directive as stand-alone products, so if the module is installed in conformanc[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 50 of 51 13 SAFETY RECOMMANDATIONS READ CAREFULLY Be sure the use of this product is allowed in the country and in the environment required. The use of this product may be dangerous an[...]

UC864-E Hardware User Guide 1vv0300766a Rev.1 - 31/01/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 51 of 51 14 Document Change Log R R e e v v i i s s i i o o n n D D a a t t e e C C h h a a n n g g e e s s Rev.0 23/10/20 07 Initial release Rev.1 31/01/20 08 3.1 – Pin 33 and 34 no[...]