OPERATION GUIDE UHF Narrow band radio data module CDP-TX/RX-02E-R 457 MHz Operation Guide Version 1.1 (May.2008) CIRCUIT DESIGN, INC., 7557-1 Hotaka, Azumino-city Nagano 399-8303 JAPAN Tel: + +81-(0)263-82-1024 Fax: + +81-(0)263-82-1016 e-mail: info@circuitdesign.jp http://www.cdt21.com OG_CDP-02E-R-457M_v11e OPERATION GUIDE. CONTENTS FEATURES & APPLICATIONS ......................................................................... 3 GENERAL DESCRIPTION................................................................................ 3 SPECIFICATIONS ............................................................................................ 4 PIN DESCRIPTION........................................................................................... 7 CHANNEL AND FREQUENCY SETTING......................................................... 9 POWER SETTING ............................................................................................ 9 ANTENNAS..................................................................................................... 10 BLOCK DIAGRAM ......................................................................................... 11 DIMENSIONS ................................................................................................ 13 TEST DATA..................................................................................................... 15 REGULATORY COMPLIANCE INFORMATION ............................................ 16 CAUTION & WARNINGS ............................................................................... 17 REVISION HISTORY ...................................................................................... 18 APPLICATION NOTE ..................................................................................... 19 OG_CDP-02E-R-457M_v11e Circuit Design, Inc. 2 OPERATION GUIDE. GENERAL DESCRIPTION & FEATURES Features
FCC Part 90 (transmitter) and Part 15 compliant (receiver)
1 mW / 10 mW selectable
Frequency selection free in 32 channels for 457 MHz
High sensitivity receiver
FM narrow band modulation Applications
Mobile / Handheld Portable device defined by FCC
Factory automation M2M
Remote control
Security systems
Alarms
Telemetry systems General description The CDP-TX-02E-R and CDP-RX-02E-R are a RoHS compliant FCC approved embedded industrial narrowband FM radio transmitter and receiver. They are suitable for various application fields such as wireless data communication, telemetry or wireless security systems. They are easy to use and integrate into application systems. Both CDP-TX-02E-R and CDP-RX-02E-R are equipped with a frequency synthesizer system with micro controller. Available frequency ranges are from 457.5 MHz to 457.8875 MHz (32 channels: 16 ch x 2 groups). The compact size, low operating voltage and frequency selectability of the CDP-
TX/RX-02E-R make it ideal for various applications where its interference rejection and practical distance range is far better than similar RF modules based on wide band SAW-resonator frequency generators. OG_CDP-02E-R-457M_v11e Circuit Design, Inc. 3 OPERATION GUIDE. SPECIFICATIONS General specification
* The MIN/TYP/MAX values for the RF output power and BER are specified in the range of operating temperature.
* All values in the specification column are measured and specified with 50 ohm terminal and at 25 C +/- 10 C unless otherwise noted. Item Reference Communication method Operating frequency range Operation temperature range Storage temperature range Aging rate Initial frequency tolerance *
Dimensions (TX-02E) Weight (TX-02E) Dimensions (RX-02E) Weight (RX-02E) Unit MHz C C ppm ppm mm g mm g Specification FCC Part 90 (TX) FCC Part 15 (RX) One-way Remarks 457.6 MHz band
-20 to 60
-30 to 70
+/- 1 / year
+/- 2 26 x 36 x 10 14 30 x 50 x 9 20 Within SAW filter band No dew condensation No dew condensation TX freq., RX Lo freq. TX freq., RX Lo freq. Not including protrusion Not including protrusion MIN TYP MAX 457.5
-20
-30
-1
-2 14 20 458.5 60 70 1 2
* Initial frequency tolerance is frequency drift at delivery within 1 year after the final adjustment Electrical specification Common to TX/RX Item Oscillation type Frequency stability Channel span Number of channel Default channel setting Data rate Max. pulse width Min. pulse width Data polarity Lo level for channel select Hi level for channel select PLL reference frequency PLL response Antenna impedance Operating voltage TX consumption current TX consumption current RX consumption current Unit ppm kHz ch ch bps ms s V V MHz ms V mA mA mA Specification PLL controlled VCO
+/- 4 (-20 to 60C) 25 2400 (1.2 kHz) 20 410 Positive GND 2.7 or open 21.25 (TCXO) 30 50 (Nominal) 3 - 12 43 @ 10mW 33 @ 1mW 30 Remarks Reference temp.=25C
(Max 16ch x 2) selectable DO / DI DO / DI DO / DI DI Vs Do from PLL setting to LD out Vcc=3.0V Vcc=3.0V Vcc=3.0V MIN TYP MAX
-4 410 0 2.5 3 25 21.25 30 50 43 33 30 4 2400 20 0.4 3.0 100 12 48 38 35 OG_CDP-02E-R-457M_v11e Circuit Design, Inc. 4 OPERATION GUIDE. Transmitter Item RF output power ( 10 mW) RF output power ( 10 mW) RF output power ( 1 mW) Deviation DI input level for Lo DI input level for Hi TX carrier start up TX carrier start up at ch change Residual FM noise Spurious emission Adjacent CH power Receiver Item Receiver type 1st IF frequency 2nd IF frequency Max. input level BER 0 error / 2556 bits) BER (1% error) Sensitivity 12dB / SINAD Spurious response rejections Adjacent CH selectivity Blocking Intermodulation DO output level for Hi DO output level for Lo RSSI rising time Time until valid Data-out RSSI rising time Time until valid Data-out Spurious radiation (1st Lo) RSSI mW mW mW kHz V V ms ms kHz dBc dBc MHz kHz dBm dBm dBm dBm dB dB dB dB dB V V ms ms ms ms dBm mV mV Specification 10 Remarks at 457.6 MHz Over all frequency range and operating temp. range 2.1 L=GND Hi=3V 50 35 0.17 PN9 2400bps / LPF=20k From power on to f 1.5ppm Shift 25kHz to f 1.5ppm DI=LLPF=20k 30 (50 ohm contact)
* up to 4 th harmonics 40 PN9 2400 bps MIN 7 4 0.3 1.6 0 3 30 40 TYP 10 1 2.1 50 35 0.17 40 MAX 13 16 2.6 2.6 0.4 5.5 100 85 0.4 Specification Double superheterodyne 21.7 450 10
-116
-120
-120 70 (1st Mix) 55 (2nd Mix) 60 dB (25k) 84 dB (+/- 1MHz) 50 dB (f-200k+f-100k Hi = Vcc Lo = GND 30 (from PLL setup) 50 (from PLL setup) 50 (from PLL setup) 70 (from PLL setup)
-57 ( 50 ohm contact) 235 (457.6 MHz) 230 (457.6MHz) Remarks MIN TYP MAX PN9 2400bps PN9 2400bps fm1k / dev 2.0k CCITT Two signal method, 1% error
-106 Z = 100 kohm or more Z = 100 kohm or more CH shift of 25kHz CH shift of 25kHz When power ON When power ON
* Up to 4 th harmonics with -110 dBm with -116 dBm Vcc x0.8 0 195 155 21.7 450
-116
-120
-120 70 55 60 84 50 30 50 50 70
-60 235 195 10 Vcc 0.7 60 100 100 140
-57 275 235 Notes about the specification values RF level where no error per 2556 bits is confirmed with the signal of PN9 and 2400 bps. BER:
BER (1% error): RF level where 1% error per 2556 bits is confirmed with the signal of PN9 and 2400 bps. Spurious response, CH selectivity:
Intermodulation: Ratio between the receiver input level with BER 1% and the signal level (PN9 2400 bps) added at the points of "Receiving frequency -200 kHz" + "Receiving frequency -100 kHz" with which BER 1% is achieved. Jamming signal used in the measurement is unmodulated. Time until valid Data-out: Valid DO is determined at the point where Bit Error Rate meter starts detecting the signal of 2400 bps, 1010 repeated signal. Conditions: All specifications are specified based on the data measured in a shield room using the PLL setting controller board prepared by Circuit Design. Measurement equipment SG = ANRITSU communication analyzer MT2605 Spectrum analyzer = ANRITSU MS2663G / BER measure = ANRITSU MP1201G OG_CDP-02E-R-457M_v11e Circuit Design, Inc. 5 OPERATION GUIDE. NOTICE
* Communication range depends on the operation environment and ambient surrounding.
* For improvement, specifications are subject to change without prior notice.
* Antenna connection of receiver CDP-RX-02E-R is designed as pin connection. Sensitivity, spurious emission and unwanted radiation levels may vary with the pattern used between the RF pin and the coaxial connection. Please make sure to verify those parameters before use.
* The feet of the shield case should be soldered to the wide GND pattern to avoid any change in characteristics. OG_CDP-02E-R-457M_v11e Circuit Design, Inc. 6 PIN DESCRIPTION CDP-TX-02E-R Pin name I/O OPERATION GUIDE. Description Equivalent circuit ANT O RF output terminal Antenna impedance nominal 50 GND I for The ground the power supply. Connect it to the ground plane as well as to the bottom part of the case. The ground plane has an impact on the range and the stability of operation. VCC I The power supply terminal. The supply voltage is DC 3.0 to 12 V. Power supply noise and ripple have an impact on performance, so eliminate them as far as possible with filters and capacitors. DATAIN I Digital data input terminal Interface voltage: H = 3 to 5.5V L = GND OG_CDP-02E-R-457M_v11e Circuit Design, Inc. 7 CDP-RX-02E-R I/O Pin name Description Equivalent circuit OPERATION GUIDE. ANT O RF input terminal Antenna impedance nominal 50 GND I The ground for the power supply. Connect it to the ground plane as well as to the bottom part of the case. The ground plane has an impact on the the stability of operation. range and VCC I The power supply terminal. The supply voltage is DC 3.0 to 12 V. Power supply noise and ripple have an impact on performance, so eliminate them as far as possible with filters and capacitors. RSSI O The receive level output of the receiver. The strength of the RF level (electric field intensity) is output as a direct-
current voltage. DATA I Digital data output terminal Interface voltage: H = Vcc L = GND AF O The demodulated output of the receiver. The DC offset is about 1 V. Refer to the specifications for the amplitude level. OG_CDP-02E-R-457M_v11e Circuit Design, Inc. 8 OPERATION GUIDE. Ch Ch Jumper CHANNEL AND FREQUENCY SETTINGS By use of a chip mounted 4-bit switch or pins and a jumper on the PCB, you can select easily between the 32 channels. The 32 channels are divided into 2 groups: Group A and Group B. Each group of channels can be selected by soldering the jumper ON or OFF. When the jumper (JP2) is ON, Group A is selected. When the jumper is OFF, Group B is selected. There are 16 channels in each group and they can easily be selected using the 4-bit switch. Before shipment all the modules are set to Group A channel 5. (457.6 MHz) Channel Table Freq.
(MHz) 1 457.5000 ON OFF 457.5250 ON 457.5500 457.5750 OFF ON 457.6000 OFF 457.6250 ON 457.6500 457.6750 OFF ON 457.7000 OFF 457.7250 457.7500 ON OFF 457.7750 ON 457.8000 OFF 457.8250 457.8500 ON OFF 457.8750 OFF A1 OFF A2 OFF A3 OFF A4 OFF A5 OFF A6 OFF A7 OFF A8 OFF A9 OFF A10 OFF A11 OFF A12 OFF A13 OFF A14 OFF A15 A16 OFF
* A5: Default setting 4 bit switch: ON = L (GND) OFF = H (Open) Freq.
(MHz) 1 457.5125 ON 457.5375 OFF 457.5625 ON 457.5875 OFF 457.6125 ON 457.6375 OFF 457.6625 ON 457.6875 OFF 457.7125 ON 457.7375 OFF 457.7625 ON 457.7875 OFF 457.8125 ON 457.8375 OFF 457.8625 ON 457.8875 OFF 4-bit Switch *
3 2 ON ON ON ON ON OFF OFF ON OFF ON OFF ON OFF OFF OFF OFF ON ON ON ON OFF ON ON OFF OFF ON OFF ON OFF OFF OFF OFF 4-bit Switch *
3 2 ON ON ON ON ON OFF OFF ON OFF ON OFF ON OFF OFF OFF OFF ON ON ON ON OFF ON ON OFF OFF ON OFF ON OFF OFF OFF OFF 4 ON ON ON ON ON ON ON ON OFF OFF OFF OFF OFF OFF OFF OFF 4 ON ON ON ON ON ON ON ON OFF OFF OFF OFF OFF OFF OFF OFF B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 B15 B16 ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON Jumper JP2: Frequency Group Setting (Switch: ON = L / OFF = H) Group A: Jumper ON Group B: Jumper OFF (Default)
(Example) Set to channel B10 (457.7375 MHz) Group B: JP2: Jumper OFF Dip Switch: OFF, ON, ON, OFF (ON: Short to GND) Position of the JP1, JP2 and DIP SW JP2 JP1 CDP-TX-02E-R JP1 CDP-RX-02E-R POWER SETTING CDP-TX-02E-R can be set to either 10 mW or 1 mW by a jumper on the PCB. JP1: Power Setting (Switch: ON = L / OFF = H) 10 mW: Jumper ON (Default) 1 mW: Jumper OFF OG_CDP-02E-R-457M_v11e Circuit Design, Inc. 9 OPERATION GUIDE. ANTENNAS The most important factors for safe data transmission are a good antenna and RF grounding, both for the transmitter and the receiver. Without an antenna it is impossible to transmit data over a long distance. The standard antenna is a Lambda/4 wire protected by a plastic cover. The receiver has a simple antenna input pin. Any suitable UHF antenna can be connected to it. The easiest way to connect an antenna to the CDP-RX-02E-R is to solder a 17 cm wire directly to the antenna input. A 50 Ohm coaxial cable can be used to extend the distance between the antenna and the receiver. The shielding of the antenna wire should be soldered to the case near the antenna input of the CDP-RX-02E-R. It is possible, but not recommended to connect the receiver module and the antenna by a connection on the PCB. This will decrease the receiver performance in most cases. To find the best method of installation for the transmitter and receiver, many things should be considered and tested. It is recommended that you read specialized literature on antennas and radiation characteristics to gain a better understanding of these fields. A detailed explanation cannot be given here. Notice: For CDP-TX-02E-R, use the antenna provided. Using other antennas may invalidate compliance with the regulatory standards. In most cases the following basic rules will help you. Connect an antenna with 50 Ohm impedance for 457 MHz. The easiest construction is a wire of approximately 17 cm. Place the antenna vertically, straight up or down from the transmitter and receiver module. Do not cover the antenna with metal parts. The connection of the metal surface of the transmitter and receiver case to a larger metal part (ground plane) will increase radiation and reception efficiency. These metal parts should not be placed near the antenna. The best range is achieved if the transmitter and receiver antenna are in direct line of sight. Any object in between the transmitter and receiver antenna, and metallic objects in particular, will decrease the range. The transmission is influenced by reflections of the transmitter signal on metallic surfaces. By overlaying the direct and reflected signal with a 180 degree phase shift the signal can almost fade out. These reflections and fade-outs can result in data drop-outs in mobile applications. The human body can have a similar effect as metal objects. Pocket transmitters should be held in your hand, held in a position away from the body and pointed in the direction of the receiver. OG_CDP-02E-R-457M_v11e Circuit Design, Inc. 10 BLOCK DIAGRAM <CDP-TX-02E-R>
OPERATION GUIDE. OG_CDP-02E-R-457M_v11e Circuit Design, Inc. 11
<CDP-RX-02E-R>
OPERATION GUIDE. OG_CDP-02E-R-457M_v11e Circuit Design, Inc. 12 DIMENSIONS
<CDP-TX-02E-R>
OPERATION GUIDE. OG_CDP-02E-R-457M_v11e Circuit Design, Inc. 13
<CDP-RX-02E-R>
OPERATION GUIDE. OG_CDP-02E-R-457M_v11e Circuit Design, Inc. 14 OPERATION GUIDE TEST DATA RSSI output
) V m
I S S R 700 600 500 400 300 200 100 0
-130 -120 -110 -100 -90
-80
-70
-60
-50
-40
-30
-20
-10 0 RF level (dBm) OG_CDP-02E-R-457M_v11e Circuit Design, Inc. 15 Regulatory compliance information OPERATION GUIDE CDP-RX-02E-R 457 MHz This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. Caution:
Any changes or modifications not expressly approved by the party responsible for product compliance could void the user's authority to operate the equipment. CDP-TX-02E-R 457 MHz Caution Exposure to radio frequency radiation:
To comply with FCC RF exposure compliance requirements, a separation distance of at least 20 cm must be maintained between the antenna of this device and all persons. This device must not be co-located or operating in conjunction with any other antenna or transmitter. Labelling:
Circuit Design transmitter module CDP-TX-02E-R 457 MHz labelled as below. FCC ID: V9X-CDP02ER457 The proposed FCC ID label format is to be placed on the module. If FCC ID is not visible when the module is installed into the system, "Contains FCC ID: V9X-CDP02ER457" shall be placed on the outside of final host system. Circuit Design receiver module CDP-RX-02E-R 457 MHz labelled as below. FCC ID: V9X-CDP02ER457R The proposed FCC ID label format is to be placed on the module. If FCC ID is not visible when the module is installed into the system, "Contains FCC ID: V9X-CDP02ER457R" shall be placed on the outside of final host system. OG_CDP-02E-R-457M_v11e Circuit Design, Inc. 16 Cautions OPERATION GUIDE As the radio module communicates using electronic radio waves, there are cases where transmission will be temporarily cut off due to the surrounding environment and method of usage. The manufacturer is exempt from all responsibility relating to resulting harm to personnel or equipment and other secondary damage. Do not use the equipment within the vicinity of devices that may malfunction as a result of electronic radio waves from the radio module. The manufacturer is exempt from all responsibility relating to secondary damage resulting from the operation, performance and reliability of equipment connected to the radio module. Communication performance will be affected by the surrounding environment, so communication tests should be carried out before actual use. Ensure that the power supply for the radio module is within the specified rating. Short circuits and reverse connections may result in overheating and damage and must be avoided at all costs. Ensure that the power supply has been switched off before attempting any wiring work. The case is connected to the GND terminal of the internal circuit, so do not make contact between the '+' side of the power supply terminal and the case. When batteries are used as the power source, avoid short circuits, recharging, dismantling, and pressure. Failure to observe this caution may result in the outbreak of fire, overheating and damage to the equipment. Remove the batteries when the equipment is not to be used for a long period of time. Failure to observe this caution may result in battery leaks and damage to the equipment. Do not use this equipment in vehicles with the windows closed, in locations where it is subject to direct sunlight, or in locations with extremely high humidity. The radio module is neither waterproof nor splash proof. Ensure that it is not splashed with soot or water. Do not use the equipment if water or other foreign matter has entered the case. Do not drop the radio module or otherwise subject it to strong shocks. Do not subject the equipment to condensation (including moving it from cold locations to locations with a Do not use the equipment in locations where it is likely to be affected by acid, alkalis, organic agents or significant increase in temperature.) corrosive gas. Do not bend or break the antenna. Metallic objects placed in the vicinity of the antenna will have a great effect on communication performance. As far as possible, ensure that the equipment is placed well away from metallic objects. The GND for the radio module will also affect communication performance. If possible, ensure that the case GND and the circuit GND are connected to a large GND pattern. Warnings Do not take a part or modify the equipment. Do not remove the product label (the label attached to the upper surface of the module.) Using a module from which the label has been removed is prohibited. Circuit Design, Inc. All right reserved No part of this document may be copied or distributed in part or in whole without the prior written consent of Circuit Design, Inc. Customers are advised to consult with Circuit Design sales representatives before ordering. Circuit Design, Inc. believes the furnished information is accurate and reliable. However, Circuit Design, Inc. reserves the right to make changes to this product without notice. OG_CDP-02E-R-457M_v11e Circuit Design, Inc. 17 REVISION HISTORY Version 1.1 Date May. 2008 CDP-TX/RX-02E-R 457MHz The first issue Description OPERATION GUIDE Remark OG_CDP-02E-R-457M_v11e Circuit Design, Inc. 18 OPERATION GUIDE Application note (Design guide for RF transmitter and receiver) The following problems generally apply to radio modules Problem Touching or moving the antenna changes its impedance, which causes variations in emission power. The variation appears as distortion in the modulating signal and causes communication errors. If a change in the circuit length occurs due to the on/off of switch etc. in the electronic circuit connected to the radio module in the system in which the radio module is integrated, the high frequency electric potential can vary, disturbing the modulating signal, leading to communication errors. If the power line and/or the signal input line are long the printed line can be subject to high frequency noise. This noise may cause communication errors. Circuit Designs receivers are designed to be vibration resistant. However there is a limit to the amount of shock and vibration the module can sustain due to its construction. Circuit Designs receivers are designed for high sensitivity. They will obtain radio signals over long distances. On the other hand, the receiver the microcomputer and surrounding digital circuits due to its high sensitivity. For stable operation, it is recommned to solder the shield case to PCB wide plane GND is sensitive to noise from Solution Fix the position of the antenna to avoid moving it. Positioning of the antenna is an important factor in operating the radio module efficiently. Add bypass capacitors of 100 to 470 pF in the immediate vicinity of the switches. Make the area beneath the radio module a ground pattern, utilizing part of the shield. Block high frequency elements by adding a choke coil to each line. In order to fix the receiver to the PCB strongly, solder the case to the PCB. When using a radio receiver where vibration is always present, use a shock absorber or fix the PCB at the vicinity of the four corners of the receiver module in addtion to fixing the four corners of the PCB on which the radio module is mounted. Make the area beneath the radio module a ground pattern, utilizing part of the shield. Block high frequency elements by adding a choke coil to each line. Soldering point OG_CDP-02E-R-457M_v11e Circuit Design, Inc. 19 A PCB example built for CDP-TX-02E-R taking into consideration the above points is shown below. Model No. RPB-T02N-1 OPERATION GUIDE Circuit Design, Inc. All rights reserved. No part of this document may be copied or distributed in part or in whole without the prior written consent of Circuit Design, Inc. OG_CDP-02E-R-457M_v11e Circuit Design, Inc. 20