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RF125 : Low Power Consumption Wireless Air Wake-Up 125KHz Transmitter And Receiver Module
- RF125 is a kind of wireless air wake-up 125KHz transmitter and receiver module launched by NiceRF, which is characterized by low-power and long-range.
- The RF125-TX module, combined with our RF125-RX module, 125K wireless air wake-up and data transmission, can be applied to PKE keyless access control, campus access control, etc.
- For RF125-TX, the transmitter ID, transmission data content, and transmission time interval can be set through the serial port.
- RF125-RX, the receiver has low power consumption and wireless wake-up, can wake itself up in the air and wake up the connected device at the same time, the receiver serial port outputs the received wireless data. It can work in pairing mode or broadcast mode. The communication distance is 5-8 meters, far exceeding the same type of products.
- RF125-RA is a full-featured wireless wake-up module that integrates RF125-RX, 125KHz antenna, pairing button, and coin cell for battery. Just insert the battery and start to use.
Electrical Characteristics(@Vcc=3.3V ANT connected to 50 ohm load）
| RF125-TX/RF125-TX2 | |||||
| Parameters | Min. | Typ. | Max. | Unit | Condition |
| Temperature Parameter | |||||
| Temperature range | -40 | 25 | 85 | ℃ | When working |
| -40 | 25 | 125 | ℃ | When storing | |
| Voltage Parameter | |||||
| Operating Voltage | 12 | 30 | V | RF125-TX | |
| 9 | 12 | V | RF125-TX2 | ||
| Current Parameter | |||||
| Working current | - | <300 | - | mA | @12V |
| Radio Frequency Parameters | |||||
| Communication distance | >5 | m | Cooperate with our receiver | ||
| RF125-RX / RF125-RA | |||||
| Parameters | Min. | Typ. | Max. | Unit | Condition |
| Temperature Parameter | |||||
| Temperature range | -40 | 25 | 85 | ℃ | When working |
| -40 | 25 | 125 | ℃ | When storing | |
| Voltage Parameter | |||||
| Operating Voltage | 2.5 | 3.3 | 3.6 | V | |
| Current Parameter | |||||
| Receive current | - | <3 | - | mA | Close to the transmitter |
| - | <9 | - | uA | No transmission | |
| Radio Frequency Parameters | |||||
| Receiving sensitivity | - | 80 | uvRMS | ||
| Communication distance | >5 | m | Cooperate with our transmitter | ||
| Type | Low power wake up |
Features of 125KHz transmitter and receiver module RF125
- Transmitter RF125-TX wide voltage input: 6-30V
- Transmitter RF125-TX2 voltage input: 9-12V
- Transmitter operating temperature range: -40 ~85℃
- The transmitter can send default data or customize data content
- Transmitter ID can be modified
- The transmission time interval can be modified
- Transmitter built-in overvoltage protection
- Transmitter built-in overcurrent protection
- Transmitter built-in reverse connection protection
- Receiver wakes up connected device
- The receiver supports pairing mode and broadcast mode
- Receiver ultra-low power consumption
- Small receiver size
- Long communication distance (far beyond products of the same type)
- High receiving performance
- Receiver working voltage: 2.5~3.6V
- Receiver operating temperature range: -40 ~85℃
- Receiver carrier frequency range: 15-150KHz
- Low-power three-channel low-power ASK receiver
- Receive and wake up sensitivity: 80uVRMS
- The lowest power consumption in the listening state of the receiver in low power consumption mode: <9uA
- Receiver 1/2/3 channel independent operation
- Programmable sensitivity adjustment range
- False trigger counter
- Support RTC wake-up timing
- The receiver supports three wake-up modes: frequency detection/pattern recognition/location recognition
- 32-bit programmable Manchester wake-up mode
Applications of 125KHz transmitter and receiver module RF125
- Campus access card
- PKE keyless access control
- BRT platform gate system
- Industrial data collection
RF125-TX:
RF125-TX2:
RF125-RX/A:
RF125-TX:
| Pin definition | I/O | Voltage | Description |
| VCC | 12-30v | Can be connected to the positive pole of 12-30V power supply | |
| GND | 0 | Connect the negative pole of the power supply | |
| TXD | O | 0-3.3v | Serial output port |
| RXD | I | 0-3.3v | Serial input port |
RF125-TX2:
| Pin definition | I/O | Voltage | Description |
| 1 | VCC | Externally connect with DC 9-12V | |
| 2,4 | GND | Externally connect with power ground | |
| 3 | +3.3V | Externally connected with voltage of 2.5-3.6V | |
| 5 | TXD | O | Serial output port |
| 6 | RXD | I | Serial input port |
| 7,8 | ANT | O | External 125K transmitting antenna |
RF125-RX:
| Pin number | Pin definition | I/O | Description |
| 1 | PAIR | I | Code pairing button, pull down for more than 1 second to enter code pairing mode, usually high level |
| 2 | TXD | O | Data output port |
| 3 | RXD | I | Reserved for factory use |
| 4,8,10 | GND | Power ground | |
| 5 | VCC | Can be externally connected with a positive voltage of 2.5-3.6V | |
| 6 | WAKE UP | O | After receiving 125K signal, output high pulse |
| 7 | LED | O | External LED light can be connected, high level light up |
| 9 | ANT3 | I | External 125K patch antenna, the inductance is 7.2mH |
| 11 | ANT2 | I | External 125K patch antenna, the inductance is 7.2mH |
| 12 | ANT1 | I | External 125K patch antenna, the inductance is 7.2mH |
RF125-TX:
RF125-TX2:
RF125-RX:
RF125-RA
