CT-EM2606 ZigBee Ready RF Transceiver Modules ZigBee- Ready RF Transceiver Modules EM-2606 Series Specification Computime Ltd. All rights reserved Confidential 1 / 16 CT-EM2606 ZigBee Ready RF Transceiver Modules Table of Content General Description ................................................................................................................. 3 1. Applications............................................................................................................................... 3 2. Features..................................................................................................................................... 3 3. Absolute Maximum Ratings .................................................................................................... 4 4. Recommended Operating Conditions................................................................................... 4 5. Electrical Specifications........................................................................................................... 4 6. Introduction................................................................................................................................ 6 7. Typical application block ......................................................................................................... 6 8. Pin Assignment......................................................................................................................... 7 9. Pin Description.......................................................................................................................... 7 10. 11. Block Diagram........................................................................................................................... 9 12. Circuit Description .................................................................................................................... 9 SIF Module Programming and Debug Interface ................................................................ 10 13. 14. Power Management............................................................................................................... 10 15. RF Frequency Detail .............................................................................................................. 11 Antenna Design Considerations........................................................................................... 12 16. 17. Product Approvals .................................................................................................................. 13 18. Mechanical Dimensions ........................................................................................................ 15 19. Ordering Information.............................................................................................................. 16 20. Document Revision History................................................................................................... 16 Computime Ltd. All rights reserved Confidential 2 / 16 CT-EM2606 ZigBee Ready RF Transceiver Modules ZigBee- Ready RF Transceiver Modules 1. General Description The CT-EM2606 RF Transceiver Modules is compact surface mounted modules specially designed for Ember ZigBee protocol stack for wireless networks, EmberZNet, based on IEEE 802.15.4 standard in the 2.4GHz world-wide ISM band. The complete module is only 25.4 x 32.3 x 4mm .They both integrate a 2.4GHz, IEEE 802.15.4-compliant transceiver with a 16-bit network processor (XAP2b core) to run EmberZNet. They contain embedded Flash and integrated RAM for program and data storage. It utilizes the non-intrusive SIF module for powerful software debugging and programming of the network processor. 2. Applications Home automation &
building control Home appliances &
alarms Monitoring of remote systems Lighting controls Sensor data capturing 3. Features
Complete ZigBee-ready module with or without integrated chip antenna
Integrated IEEE 802.15.4 PHY and MAC layer
12MHz XAP2b 16-bit network processor core
Non-intrusive debug interface (SIF)
SPI interface for communication and controlled by the Host using the EmberZNet Integrated FEM Serial Protocol (EZSP) Internal RC oscillator for timer
16 channels in the 2.4 GHz ISM band
On-chip regulator for 2.7-3.6V operation , three sleep low power modes
-15dBm------20dBm output power, SW controlled Computime Ltd. All rights reserved Confidential 3 / 16 CT-EM2606 ZigBee Ready RF Transceiver Modules 4. Absolute Maximum Ratings Parameter Regulator voltage (VDD_PADS) Voltage on nSSEL INT, MOSI, MISO, SCLK, nSSEL, SIF_CLK, PTI_EN, SIF_MISO, SDBG, LINK_ACTIVITY, nWAKE, nRESET nHOST_INT, nSIF_LOAD, PTI_DATA, SIF_MOSI, Test Conditions Min. Max.
- 0.3 3.6 Unit V
- 0.3 VDD_PADS+0.3 V Storage temperature C Under no circumstances should the absolute maximum ratings given above be violated. Stress exceeding one or more of the limiting values may cause permanent damage to the device.
+ 140
- 40 5. Recommended Operating Conditions Parameter Regulator input voltage (VDD_PADS) Core input voltage (VDD_24MHZ, VDD_VCO, VDD_RF, VDD_IF, VDD_PADSA, VDD_FLASH, VDD_SYNTH_PRE, VDD_CORE) Temperature range 6. Electrical Specifications Test Conditions Min. Typ. Max. Unit 2.7 3.6 1.7 1.8 1.9 V
- 40
+ 85 C T=25, VCC = 3.0V, Fo =2450MHZ, if nothing else stated. Parameter Min Typ. Max Unit Condition / Note Operating frequency 2400 2483.5 MHz Number of channels Channel spacing Input/output impedance Data rate DSSS chip rate Frequency stability Transmit power
-17 16 5 50 250 2
+/-40 Programmable in 5MHz steps, 5 MHz steps IEEE 802.15.4 compliance For IEEE 802.15.4 compliance for MHz For IEEE 802.15.4 compliance Ohm kbit/s Mc/s ppm 20 dBm Programmable from firmware Computime Ltd. All rights reserved Confidential 4 / 16 CT-EM2606 ZigBee Ready RF Transceiver Modules Parameter Sensitivity Adjacent channel rejection
+/-5 MHz Adjacent channel rejection
+/-10 MHz Co-channel rejection Min Typ. Max Unit
-98 35/35 40/40
-6 3.6 dBm dB dB dB V Supply voltage 2.7 Condition / Note PER = 1% PER, 20byte packet defined by IEEE 802.15.4 Boost mode IEEE 802.15.4 compliance at -82 dBm IEEE 802.15.4 compliance at -82 dBm Current consumption, RX mode Current consumption, TX mode Deep sleep current Flash Memory MCU clock frequency RC frequency OSCILATOR 36 38 190 5.0 1 12 10 mA Max RX sensitivity (normal mode) mA Max RX sensitivity (boost mode) mA A Kbit MHz KHZ Computime Ltd. All rights reserved Confidential 5 / 16 CT-EM2606 ZigBee Ready RF Transceiver Modules 7. Introduction The CT-EM2606 modules are specially designed for ZigBee application. They provide a fast jump start design for system integrators or electronic designers wishing to use ZigBee wireless technologies. The module contains qualified RF hardware and enough processor power to run the EmberZNet stack or other ZigBee network stack (depending on version), making it a powerful platform for building wireless networking products. ZigBee Coordinators (ZC), ZigBee Routers (ZR), and ZigBee End Devices (ZED) are all supported and are programmed onto the module together with a custom application. Minimal RF design experience is need to use CT-EM2606 modules. 8. Typical application block HOST NWAKE NHOST_INT UP NSSEL SCLK MISO MOSI Debug and programming interface NREST PTI_EN PTI-DATA SIF_CLK SIF_MISO SIF_MOSI NSIF_LOAD SDBG 2.7- 3.6V Ember EM260 FEM LINK_ACTIVITY Computime Ltd. All rights reserved Confidential 6 / 16 CT-EM2606 ZigBee Ready RF Transceiver Modules 9. Pin Assignment TOP VIEW 10. Pin Description Pin#
1 2 3 4 5 6 7 8 9 10 11 12 13 Signal Direction Description SIF_CLK SIF_MISO SIF_MOSI DI DO DI SIF Interface clock SIF Interface master in/slave out SIF Interface master out/slave in nSIF_LOAD DI/DO SIF Interface load strobe SDBG LINK_ACTIVITY DO DO Spare Debug Signal Link and Activity signal GROUND GROUND GROUND GROUND GROUND GROUND GND Ground GND Ground GND Ground GND Ground GND Ground GND Ground IDLE_EN I Enable the FEM in deep sleep mode , Active high, in other state, set it in low level Computime Ltd. All rights reserved Confidential 7 / 16 CT-EM2606 ZigBee Ready RF Transceiver Modules GROUND GND Ground VBRD nRESET MOSI MISO SCLK PI DI DI DO DI Power Supply Input Reset, active low SPI Data, Master Out/Slave In SPI Data, Master In/Slave Out SPI Clock GROUND GND Ground nRTS nSSEL_INT/nCTS PTI_EN PTI_DATA TXD DO DI DO DO DO UART RTS SPI Slave Select PTI Frame signal PTI Data signal UART TXD nHOST_INT/RXD DO/DI Host Interrupt Signal nWAKE DI Wake Interrupt Signal GROUND GND Ground 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Computime Ltd. All rights reserved Confidential 8 / 16 CT-EM2606 ZigBee Ready RF Transceiver Modules 11. Block Diagram Rout to HOST 16 Bit Network Processor User Application ZigbeeTM Network IEEE 802.15.4 MAC 2.7 3.6V IEEE 802.15.4 RF Transceiver RF FEM Figure 5 : Block Diagram 12. Circuit Description The module contains an IEEE 802.15.4 compliant RF transceiver, high speed oscillator, RC oscillator and RF FEM . The module is intended to running the Ember ZigBee software or other ZigBee network implementation, depending on the specific version. The application software together with the ZigBee protocol software stack can be programmed in Flash memory through SIF module, using an evaluation board from Ember InSight Desktop. To support user-defined applications, the module exposes the Ember Serial API over the SPI, which allows application development to occur on a Host microcontroller of choice. In addition to the four SPI signals, two additional signals, nHOST_INT and nWAKE, provide an easy-to-use handshake mechanism between the Host and the module. Also, an integrated voltage regulator, power-on-reset circuitry, sleep timer, and low-power sleep modes are available. The deep sleep mode draws less than 5A allowing products to achieve long battery life. For further details on the transceiver (Ember EM260), please consult data sheet at http://www.ember.com Computime Ltd. All rights reserved Confidential 9 / 16 CT-EM2606 ZigBee Ready RF Transceiver Modules 13. SIF Module Programming and Debug Interface SIF is a synchronous serial interface developed by Cambridge Consultants Ltd. It is the primary programming and debug interface of the CT-260. The SIF module allows external devices to read and write memory-mapped registers in real-time without changing the functionality or timing of the XAP2b core. The SIF interface provides the following:
IC production test (especially analog)
PCB production test
Firmware download
Product control and characterization The pins are:
SIF_LOADB
SIF_CLK
SIF_MOSI
SIF_MISO The maximum serial shift speed for the SIF interface is 48MHz. SIF interface accesses can be initiated even when the chip is in idle, deep sleep or power down modes. An edge on nSIF_LOAD wakes the chip to allow SIF cycles. 14. Power Management The module supports four different power modes: active, idle, deep sleep, and power down. Active mode is the normal, operating state of the module. While in idle mode, code execution halts until any interrupt occurs. All modules including the radio continue to operate normally. The EmberZNet stack automatically invokes idle as appropriate. Deep sleep mode and power down mode both power off most of the functions, including the radio, and leave only the critical chip functions powered. The internal regulator is disabled. All output signals are maintained in a frozen state. Upon waking from deep sleep or power down mode, the internal regulator is re_enabled. Deep sleep and power down result in the same sleep current consumption. The two sleep modes differ as follows: the module can wake on both an internal timer and an external signal from deep sleep mode; power down mode can only wake on an external signal. Computime Ltd. All rights reserved Confidential 10 / 16 CT-EM2606 ZigBee Ready RF Transceiver Modules 15. RF Frequency Detail The following table shows the RF channels as defined by the IEEE 802.15.4 standard. RF channel Frequency 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 2405MHz 2410MHz 2415MHz 2420MHz 2425MHz 2430MHz 2435MHz 2440MHz 2445MHz 2450MHz 2455MHz 2460MHz 2465MHz 2470MHz 2475MHz 2480MHz The output power level of em250 can be configured in the range -32 to 3dBm and the gain of FEM is 17dB, So the module output can controlled in range -15 to 20dBm. The RF transceiver uses direct sequence spread spectrum (DSSS) with 2 Mchip/s chip rate, giving a raw data rate of 250 kbit/s. The modulation format is Offset Quadrature Phase Shift Keying (O-QPSK). It is robust even under noisy environments when sharing the same frequency band with other applications. The use of RF frequencies and maximum allowed RF power should according to different national regulations. The CT-260 is complying with the applicable regulations for the world wide 2.4GHz ISM band.
[Subject to final approval: Specifically it complies with the European Union R&TTE directive meeting EN 300 328 and EN300 440 class 2. It also meets the FCC CFR47 Part15 regulations for use in the US and the ARIB T-66 for use in Japan.]
Computime Ltd. All rights reserved Confidential 11 / 16 CT-EM2606 ZigBee Ready RF Transceiver Modules 16. Antenna Design Considerations The CT-EM2506 module includes an integrated PCB trace antenna. An optional MMCX connector can be specified, enabling connection to a 50-ohm external antenna of the users choice.. The PCB antenna employs an F-Antenna topology that is compact and supports an omni-directional radiation pattern. To maximize antenna efficiency, an adequate ground plane must be provided on the host PCB. If positioned correctly, the ground plane on the host board under the module can contribute significantly to antenna performance. The position of the module on the host board and overall design of the product enclosure contribute to antenna performance. Poor design effects radiation patterns and can result in reflection, diffraction, and/or scattering of the transmitted signal. Here are some design guidelines to help ensure antenna performance:
Never place the ground plane or route copper traces directly underneath the antenna portion of the module. Never place the antenna close to metallic objects. In the overall design, ensure that wiring and other components are not placed near the antenna. Do not place the antenna in a metallic or metallized plastic enclosure. Keep plastic enclosures 1cm or more from the antenna in any direction. Test at 2440MHZ __ Vertical Polarization Gain
(dBi) Avg : -14.8
--- Horizontal Polarization Gain
(dBi) Avg : -3.4 Computime Ltd. All rights reserved Confidential 12 / 16 CT-EM2606 ZigBee Ready RF Transceiver Modules 17. Product Approvals 17.1 FCC Approvals The CT-EM2606 has been designed to meet all national regulations for World-wide use. Using the integrated antenna it conforms to FCC CFR 47 Part 15 (USA). 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. The device CT-EM2606 carries FCC authorization and is marked with the FCC ID Number. Whilst any device into which this authorized module is installed will not normally be required to obtain FCC authorization, this does not preclude the possibility that some other form of authorization or testing may be required for the finished device. When the CT-EM2606 module is integrated inside another device/product, then the outside surface of that device/product must display a label referring to the enclosed module. This exterior label can use wording such as Contains Transmitter Module FCC ID:DICT-EM2606 or Contains FCC ID: DICT-EM2606, although any similar wording that expresses the same meaning may be used. To meet the Section 15.209 emission requirements in the restricted frequency bands of Section 15.205, the transceiver transmitter power for the CT-EM2606 module needs to be reduced from the typical maximum setting on the upper two channels (2475 MHz and 2480 MHz). Maximum values are TBD. FCC statement If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Computime Ltd. All rights reserved Confidential 13 / 16 CT-EM2606 ZigBee Ready RF Transceiver Modules 17.2 CE Certificate With the integrated antenna the CT-EM2606 has been tested and conforms to the following standards:
Radio: ETSI EN300 328 V1.6.1 EMC: ETSI EN301 489-17 V1.2.1 EMC: ETSI EN301 489-1 V1.6.1 Safety: IEC/EN60950-1 If the CT-EM2606 module is incorporated into an OEM product, the OEM product manufacturer must ensure compliance of the final product to the European EMC, and low voltage/safety standards. A Declaration of Conformity must be issued for each of these standards and kept on file as described in the R&TTE Directive. The final product must not exceed the specified power ratings, as specified in this specification. If any of these specifications are exceeded in the final product then a submission must be made to a notified body for compliance testing to all of the required standards Computime Ltd. All rights reserved Confidential 14 / 16 CT-EM2606 ZigBee Ready RF Transceiver Modules 25.4 3.81 2.54 18. Mechanical Dimensions 4.1 1.6 1 9
. 1 4 5
. 2 2 2
. 3 2 5.2 10.52 1.53 8 3
. 0 1.53 2.79Typ 28 pads
. 4 2 3 p y T h c t i P 4 5
. 2 s d a p 8 2 p y T 8 7
. 22.61 1 Unit in mm Computime Ltd. All rights reserved Confidential 15 / 16 CT-EM2606 ZigBee Ready RF Transceiver Modules 19. Ordering Information Ordering Part Number CT-EM2606 Description ZigBee-ready RF module, 1kB Flash, PCB trace antenna, 20dBm Version FCC/CE certificate 20. Document Revision History Document Revision 1.0 change Draft Computime Ltd. All rights reserved Confidential 16 / 16