MAX2991
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MAX2991

Power-Line Communications (PLC) Integrated Analog Front-End Transceiver

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State-of-the-Art Power-Line Communications Analog Front-End for Use in the 10kHz to 490kHz Frequency Range

warning : NOT RECOMMENDED FOR NEW DESIGNS tooltip
warning : NOT RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Features
  • Optimized to Operate with the MAX2990 PLC Baseband
  • Integrated Band Select Filter, AGC, and 10-Bit ADC for Rx Path
  • Integrated Wave-Shaping Filter, Programmable Predriver Gain, and 10-Bit DAC for Tx Path
  • Variable Sampling Rate Up to 1.2Msps
  • Built-In 60dB Dynamic Range AGC and DC Offset Cancellation
  • Programmable Filters Operate in the CENELEC, FCC, and ARIB Frequency Bands
  • Single 3.3V Power Supply
  • 70mA Typical Supply Current (Half-Duplex Mode)
  • Extended Operating Temperature Range
Additional Details
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The MAX2991 power-line communication analog front-end (AFE) is a state-of-the-art integrated circuit that delivers high integration and superb performance, while reducing the total system cost. The MAX2991 is the first AFE specifically designed for OFDM (orthogonal frequency division multiplexing) modulated signal transmission over power lines. Operating in the 10kHz to 490kHz band, the programmable filters allow compliance with CENELEC, FCC, and ARIB standards using the same device.

The MAX2991 transceiver provides two main paths: transmit (Tx) path and receive (Rx) path. The transmit path injects an OFDM modulated signal into the AC or DC line. The transmit path is composed of a digital IIR filter, digital-to-analog converter (DAC), followed by a lowpass filter, and a preline driver. The receiver path is for the signal enhancement, filtering, and digitization of the received signal. The receiver is composed of a lowpass and a highpass filter, a two-stage automatic gain control (AGC), and an analog-to-digital converter (ADC). The integrated AGC maximizes the dynamic range of the signal up to 60dB, while the lowpass filter removes any out-of-band noise, and selects the desired frequency band. The ADC converts the enhanced and amplified input signal to a digital format. An integrated offset cancellation loop minimizes the DC offset.

The MAX2991, along with the MAX2990 PLC baseband modem, delivers the most cost-effective data communication solution over power-line networks in the market. The MAX2991 is specified over the -40°C to +85°C temperature range and is available in a 48-pin LQFP package.

Applications

  • Automatic Meter Reading
  • Building Automation
  • Heating Ventilation and Air Conditioning (HVAC)
  • Home Automation
  • Industrial Automation
  • Lighting Control
  • Remote Monitoring and Control
  • Security Systems/Keyless Entry
  • Sensor Control and Data Acquisition
  • Smart Grid

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Documentation
Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

MAX2990EVKIT

Evaluation Kit for the MAX2990 and MAX2991

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MAX2990EVKIT

Evaluation Kit for the MAX2990 and MAX2991

Evaluation Kit for the MAX2990 and MAX2991

Features and Benefits

  • Optimized to Operate with the MAX2990 PLC Baseband
  • Integrated Band Select Filter, AGC, and 10-Bit ADC for Rx Path
  • Integrated Wave-Shaping Filter, Programmable Predriver Gain, and 10-Bit DAC for Tx Path
  • Variable Sampling Rate Up to 1.2Msps
  • Built-In 60dB Dynamic Range AGC and DC Offset Cancellation
  • Programmable Filters Operate in the CENELEC, FCC, and ARIB Frequency Bands
  • Single 3.3V Power Supply
  • 70mA Typical Supply Current (Half-Duplex Mode)
  • Extended Operating Temperature Range

Product Detail

The MAX2990 evaluation kit is a highly integrated chipset including the MAX2990 baseband (BB) and MAX2991 analog front end (AFE). This system transfers data over 120V or 240V AC powerlines, DC, or cold wire. The MAX2990 baseband uses an orthogonal frequency division multiplexing modulation (OFDM) technique that can be configured to operate in the 10kHz to 490kHz frequency band.

The MAX2990 evaluation kit contains two modems and the evaluation software. It is assembled and preconfigured to demonstrate performance under a variety of international regulatory requirements. The part number for the different communication standards are as follows:

Part Number Description Freq. Band Data Rate (Max)
MAX2990EVKITA# CENELEC A 32kHz to 95kHz 23Kbps
MAX2990EVKITB# CENELEC B 95kHz to 120kHz 9.5Kbps
MAX2990EVKITC# CENELEC C 120kHz to 140kHz 7.7Kbps
MAX2990EVKITBC# CENELEC BC 95kHz to 140kHz 16Kbps
MAX2990EVKITF# FCC 150kHz to 480kHz 96Kbps
MAX2990EVKITR# ARIB 130kHz to 450kHz 93Kbps

Applications

  • Automatic Meter Reading
  • Building Automation
  • Heating Ventilation and Air Conditioning (HVAC)
  • Home Automation
  • Industrial Automation
  • Lighting Control
  • Remote Monitoring and Control
  • Security Systems/Keyless Entry
  • Sensor Control and Data Acquisition
  • Voice-Over-Powerline

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