 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| Preliminary (R) * Network Router * Compatible with RFM miniMESHTM Network Protocol * 3 V, Very Low Current Operation * Ready-to-Use OEM Module The DM1800-434MR is the 433.92 MHz router module in the DM1800 family of RF transceivers. The DM1800 family is designed for adding embedded wireless connectivity to a wide range of monitoring and control systems. This module is compatible with RFM's miniMESHTM network protocol, which provides add-on "plug- and-play" multicast mesh network routing. Radio communications range in an "open field" environment is typically 200 meters/hop. The DM1800-434MR combines RFM's very low current ASH radio technology with low power microcontroller technology to achieve long battery life. The DM1800-434MR is designed for operation under ETSI I-ETS 300 220 regulations. DM1800434MR 433.92 MHz Transceiver Module Absolute Maximum Ratings Rating All Input/Output Pins Except VIN Non-Operating Ambient Temperature Range Electrical Characteristics Characteristic Operating Frequency Modulation Type RF Encoded Data Transmission Rate Average Receiver Input Current, No External Power Supply Load Receiver Input Signal for 10 BER, 25 C Peak Transmitter Input Current, No External Power Supply Load Peak Transmitter Output Power Digital In Logic High Digital In Logic Low Power Supply Input Voltage Range, -40 to +85 oC Power Supply Input Voltage Range, 0 to +85 C Regulated Power Supply Output Voltage, VIN 3.1 to 14 V Regulated Power Supply Voltage Ripple o -3 Value -0.3 to +3.3 -50 to +100 Units V o C Sym fO Notes Minimum 433.72 Typical Maximum 434.12 Units MHz OOK 4.8 IR 4 -103 ITP PO 2.4 .45 VIN VIN VOUT 3.1 2.6 3.0 10 14 14 1 13.5 kb/s mA dBm mA mW V V V V Vdc mVP-P 1 D M 1 8 0 0 -4 3 4 M R B lo c k D ia g r a m J 1 -1 0 CNTRL0 GND J 2 -3 J 2 -2 GND J 2 -1 J 1 -9 J 1 -8 J 1 -7 CNTRL1 RX DATA TXM OD GND ASH T r a n s c e iv e r P IC 16F688 P J 1 -6 J 1 -5 J 1 -4 J 1 -3 B IN D VOUT V IN GND LED LED 2 1 3V Reg J 1 -2 J 1 -1 Figure 1 Theory of Operation The major components of the DM1800433.92MR include an RFM TR3000 ASH transceiver and a Microchip PIC16F688 microcontroller. The TR3000 operates on a frequency of 433.92 MHz, at a nominal output power of 1 mW. The DM1800 includes two LEDs that indicate the module's operat- ing mode. The LEDs can be disabled for low current operation. The DM1800-434MR is compatible with RFM's miniMESHTM network protocol, which provides add-on "plug-and-play" multicast mesh network routing to improve communication range and robustness. 2 DM1800-434MR I/O Pad Descriptions Pin J1-1 J1-2 Name GND VIN This pad is a signal and power supply ground. This is the power supply input pad. The allowed input voltage range is 2.6 to 14 V. VOUT tracks 50 to 100 mV below VIN when VIN is in the range of 2.6 to 3.1 V. When VIN is in the range of 3.1 to 14 V, VOUT is regulated at 3.0 Vdc. Up to 10 mA can be supplied from this pad for powering external circuits such as thermistor-resistor networks. External circuitry must not impress more than 10 mVp-p ripple on the regulated output voltage. This pad is connected to a logic input on the microcontroller, and is configured with a weak pull-up. When this pin is momentarily grounded (to J1-1 or J1-10, the module is placed into the bind mode, allowing this module to be associated with other modules to form a network. This pad is a signal and power supply ground. This pad is a ground for the antenna port. This pad is the antenna port. This pad is a ground for the antenna port. Description J1-3 VOUT J1-4 J1-10 J2-1 J2-2 J2-3 BIND GND GND ANT GND 3 D M 1 8 0 0 -4 3 4 M R I/O P a d L a b e ls GND S E R IA L T X GND S E R IA L R X D IG IT A L O U T ANALOG D IG IT A L IN IN R F IO GND B IN D VOUT V IN GND Figure 2 D M 1 8 0 0 -4 3 4 M R S M T M o u n tin g P a tte r n .0 9 5 1 .5 3 5 .0 8 0 .0 9 0 1 .0 0 0 .1 3 0 .2 0 0 .1 0 0 T Y P .2 0 0 .0 9 0 D im e n s io n s in in c h e s . P C B p lu s c o m p o n e n t h e ig h t is .1 7 0 m a x ; P C B p lu s a n te n n a h e ig h t is 2 .1 5 m a x Figure 3 Note: Specifications subject to change without notice. file: dm1800rj.vp, 2005.11.11 rev 4 .0 7 0 T Y P .0 5 0 |
Price & Availability of DM1800-434MR
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |