915MHz RF Transceiver Module with -120dBm Sensitivity and 1.8KM Range
Product Description
915MHz RF Transceiver Module with -120dBm Sensitivity and 1.8KM Range
DL-RTM300-915 RF Transceiver Module was designed base on CMOSTEK CMT2300 wireless transceiver chip, it is Pin to Pin with HopeRF's RFM300-915S2 RF Transceiver Module. It is a compact, low-power, long-distance wireless transceiver module. It is set to 915MHz and other special frequency bands of the ISM band (433Mhz/868Mhz available). It has 140dB maximum link budget, and the maximum transmission rate can reach 300Kbps. The high receive sensitivity(–120dBm) coupled with +10dBm output power ensures extended range and improved link performance.
This 915MHz Wireless module integrates all RF-related functions. You do not need to have a deep understanding of RF circuit design, but easily develop wireless products with stable performance and high reliability...
Applications
● ISM band data communication
● Intelligent buildings
● Smart home Security
● AMR (Automatic Message Recording)
● Wireless remote control
● Building automation
● Wireless sensor network
● Energy control and management
● RKE (Remote Keyless Entry)
● Thermal energy collection, meter measurement
Features & Brief Introduction
● Compact size, adopt SMD stamp side half hole package mode
● Working frequency: 868Mhz (433Mhz, 915 MHz available)；
● Transmission distance: 1.8KM in open ground；
● Support FSK, GFSK, OOK modulation, can be controlled programmatically
● Baud Rate: 1.2Kbps～300Kbps, can be configured programmatically
● Max. output power: 10dBm, -120dBm@1.2Kbps high receiving sensitivities
● Low power consumption, receiving current<7mA；
● Supplying Voltage: 1.9～3.6V DC
● Size: 16*16*1.8mm
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DL-RTM300 & 300H Specification V1.2
Technical Parameter
Parameter | Minimum | Maximum | Unit |
Positive Power Supply | -0.3 | +3.6 | V |
Voltage On Digital Control Inputs | -0.3 | VDD+0.3 | V |
Voltage On Analog Inputs | -0.3 | VDD+0.3 | V |
RX Input Power | - | +10 | dBm |
Storage Temperature | -55 | +125 | ℃ |
Soldering Temperature（10s） | - | +255 | ℃ |
ESD Rating（Human Boy Model） | -2 | 2 | KV |
Recommended working range
Parameter | Minimum | Maximum | Unit |
Positive Power Supply | +1.8 | +3.6 | V |
Working Temperature | -20 | +70 | ℃ |
Supply Voltage Slew Rate | 1 | - | mV/us |
DC characteristic
Parameter | Conditions | Minimum | Typical | Maximum | Unit |
DL-RTM300 TX Working Current | 433MHz band，Pout=+20dBm 868MHz band，Pout=+20dBm 915MHz band，Pout=+20dBm | -
| 75 80 85 | 95 90 95 | mA |
DL-RTM300 RX Working Current | 433MHz band， 868MHz band， 915MHz band， | - - - | 7 7.5 7.5 | 10 10.5 10.5 | mA |
DL-RTM300 Sleep Current | All band | - | - | 1 | uA |
Transmitter AC characteristic
Parameter | Conditions | Minimum | Typical | Maximum | Unit |
TX Frequency Range Programmable | 433MHz band. 868MHz band. 915MHz band. | 413 848 895 | - - - | 453 888 935 | MHz |
DL-RTM300 Output Power | 433MHz band 868MHz band 915MHz band | -
| +10 | - | dBm |
Symbol Rate,FSK Mode | programmable | 0.1 | - | 300 | kbps |
Symbol Rate,OOK Mode | programmable | 0.1 | - | 40 | kbps |
Frequency Deviation,FSK | programmable | 1 | - | 200 | KHz |
Frequency Resolution | - | 24.8 | - | Hz |
Receiver AC characteristic
Parameter | Conditions | Minimum | Typical | Maximum | Unit |
PX Frequence Range Programmable | 433MHz band. 868MHz band. 915MHz band. | 413 848 895 | - - - | 453 888 935 | MHz |
RX Sensitivity OOK ModeSR=1.2kbps, | 433MHz 868MHz 915MHz | - - - | -120 -120 -118 | - - - | dBm |
RX Sensitivity FSK ModeFoev=19.2kHz,SR =1.2kbps, | 433MHz 868MHz 915MHz | - - - | -118 -118 -116 | - - - | dBm |
Receiver Bandwidth | 50 | 500 | KHz | ||
Blocking Immunity | +/-1MHz offset +/-2MHz offset +/-10MHz offset | - - - | 52 74 75 | - - - | dB |
Image Rejection Ratio | lF=280KHz | - | 35 | - | dB |
DL-RTM300 Pins Definition
Number | Definition | Type | Function |
1 | ANT | AI/AO | RF signal input/output |
2 | 3.3V(VDD) | Pl | Power supply input,1.8-3.6V |
3 | GND | G | Ground |
4 | NC | No Connect | |
5 | CSB | l | SPI Chip select input, active low |
6 | SCK | l | SPI Clock input |
7 | FCSB | l | SPI FIFO select input, active low |
8 | SDlO | l/O | SPI Data input and output |
9 | GPlO1 | l/O | General Purpose Digital I/O that may be configured through the registers to perform various functions |
10 | GPlO3 | l/O | General Purpose Digital I/O that may be configured through the registers to perform various functions |
11 | GPlO2 | l/O | General Purpose Digital I/O that may be configured through the registers to perform various functions |
12 | NC | No Connect | |
13 | NC | No Connect | |
14 | GND | G | Ground |
Product size:
Dreamlnk is a high-tech enterprise specializing in ISM band micropower wireless communication technology, providing different kinds of wireless modules and one-stop IoT solutions, including 433/868/915MHz wireless modules, 2.4G wireless Modules, FSK Transceiver Modules, Antennas, Remote Controls, and customized wireless RF solutions. Welcome to inquire!