Module Information
Model: RC-TASK2-868
Description:
ASK/OOK transmitter module with Crystal oscillator.
Vdc: 2.2 ÷ 3.6Volt
Current: 21/15mA
Frequency: 868.30MHz
Power : 10dBm
Dimension: 20.32 x 11.43mm
Model: RC-TFSK3-434
Description:
433.92MHz FSK Radio Transmitter Module - Standard Pinout .
Vdc: 2.4 ÷ 3.6Volt
Current: 14.5m
Frequency: 433.92MHz
Powe : 10dBm
Dimension: 20.32 x 11.43mm
Model: RC-TFSK4-434
Description :
433.92MHz FSK Transmitter Module - Standard Pinout.
Vdc: 2.4 ÷ 3.6Volt
Current: 14.5mA
Frequency: 433.92MHz
Power : 10dBm
Dimension: 30.5 x 10.3mm
Reference Schematics
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. IoT
RC-SM1276-868
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LORA Module RC-SM1276-868 based on Semtech SX1276
Frequency Band : 868Mhz
It’s a SX1276 LoRa module with SPI interface. CE certified.
The RC-SM1276-868 module is designed based on SX1276. The SX1276 incorporates the LoRaTM spread spectrum modem which is capable of achieving significantly longer range than existing systems based on FSK or OOK modulation. At maximum data rates of LoRaTM the sensitivity is 8dB better than FSK, but using a low cost bill of materials with a 20ppm XTAL LoRaTM can improve receiver sensitivity by more than 20dB compared to FSK. LoRaTM also provides significant advances in selectivity and blocking performance, further improving communication reliability. For maximum flexibility the user may decide on the spread spectrum modulation bandwidth (BW), spreading factor (SF) and error correction rate (CR). Another benefit of the spread modulation is that each spreading factor is orthogonal - thus multiple transmitted signals can occupy the same channel without interfering. This also permits simple coexistence with existing FSK based systems. Standard GFSK, FSK, OOK, and GMSK modulation is also provided to allow compatibility with existing systems or standards such as wireless MBUS and IEEE 802.15.4g.
Datasheet
Ta = 25°C unless otherwise specified
| Technical Characteristics | Min | Typ | Max | Unit |
| Supply Voltage | 1.8 | | 3.7 | Volt |
| Supply Current RX mode LnaBoost OFF, band1 | | 10.80 | | mA |
| Supply Current RX mode LnaBoost ON, band1 | | 11.50 | | mA |
| Supply Current RX mode Bands 2&3 | | 12.00 | | mA |
| Supply Current Sleep Mode | | 0.20 | 1 | µA |
| Supply Current Idle Mode (RC Osc. enabled) | | 1.50 | | µA |
| Supply Current Standby Mode (Crystal enabled) | | 1.60 | | µA |
| Supply Current Transmit Mode RFOP=+20dBm | | 120 | | mA |
| RF Power Output(for LORA Modulation) | | | +19 | dBm |
| RF Sensitivity (for LORA Modulation) | | -139 | | dBm |
| Operating Range Temperature | -30 | | 75 | °C |
For more information and details consult the datasheet of the SX1276 chip from Semtech website.
Pin Outs
Mechanical Dimension
Schematics
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RC-SM1276-868
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