Overview
The AFE031AIRGZT, produced by Texas Instruments, is a low-cost, integrated powerline communications (PLC) analog front-end (AFE) device. It is designed to enable communication over high-voltage AC and DC power lines. The device is controlled by a DSP or microcontroller and is capable of capacitive- or transformer-coupled connections to the powerline. It features an integrated powerline driver with thermal and overcurrent protection, making it suitable for driving low-impedance lines that require up to 1.5 A into reactive loads. The AFE031 also includes a highly sensitive receiver that can detect signals down to 20 μVRMS and supports various modulation schemes such as FSK, S-FSK, and OFDM.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Power Amplifier Supply Voltage (PA_VS) | 7 | - | 24 | V |
| Digital Supply Voltage (DVDD) | 3.0 | - | 3.6 | V |
| Analog Supply Voltage (AVDD) | 3.0 | - | 3.6 | V |
| Output Current (Continuous) | - | 1.5 | - | A |
| Output Voltage Swing (PA_VS) | - | 12 VPP | - | V |
| Receive Sensitivity | - | 20 μVRMS | - | - |
| Operating Temperature Range | -40 | - | 125 | °C |
| Package Type | - | VQFN-48 | - | - |
Key Features
- Integrated powerline driver with thermal and overcurrent protection.
- Conforms to EN50065-1 and PRIME certified.
- Large output swing: 12 VPP at 1.5 A (15-V supply).
- Low power consumption: 15 mW (receive mode).
- Programmable Tx and Rx filters and gain control.
- Supports EN50065 CENELEC bands A, B, C, D and modulation schemes like FSK, S-FSK, and OFDM.
- Four-wire serial peripheral interface (SPI) for control.
- Two integrated zero crossing detectors and two-wire transceiver buffer.
- Extended junction temperature range: –40°C to +125°C.
Applications
- eMetering.
- Lighting.
- Solar.
- Pilot wire.
Q & A
- What is the AFE031AIRGZT used for?
The AFE031AIRGZT is used for powerline communications (PLC) in various applications such as eMetering, lighting, solar, and pilot wire systems.
- What are the key features of the AFE031AIRGZT?
Key features include an integrated powerline driver, conforming to EN50065-1, large output swing, low power consumption, programmable filters and gain control, and support for various modulation schemes.
- What is the operating temperature range of the AFE031AIRGZT?
The operating temperature range is from –40°C to +125°C.
- What is the maximum output current of the AFE031AIRGZT?
The maximum continuous output current is 1.5 A.
- What modulation schemes does the AFE031AIRGZT support?
The device supports FSK, S-FSK, and OFDM modulation schemes.
- What is the package type of the AFE031AIRGZT?
The device is housed in a 48-pin VQFN PowerPAD package.
- How does the AFE031AIRGZT protect against overcurrent and overtemperature?
The device is internally protected against overtemperature and short-circuit conditions, with an adjustable current limit and interrupt output for current and thermal limits.
- What is the receive sensitivity of the AFE031AIRGZT?
The receive sensitivity is typically 20 μVRMS.
- How is the AFE031AIRGZT controlled?
The device is controlled via a four-wire serial peripheral interface (SPI) and can be managed by a DSP or microcontroller.
- What are some common applications of the AFE031AIRGZT?
Common applications include eMetering, lighting, solar, and pilot wire systems.
