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2.4GHz/5GHz, Single-Band and Dual-Band, 802.11g/a RF Transceiver ICs

Product Details

The MAX2825/MAX2826/MAX2827 single-chip, RF transceiver ICs are designed specifically for 802.11 WLAN applications. The MAX2825 is designed for single-band 2.4GHz 802.11g (OFDM and CCK) and the MAX2826 for single-band 5GHz 802.11a (OFDM). The MAX2827 is designed for dual-band 802.11a+g applications. The ICs include all circuitry required to implement the RF transceiver function, providing a fully integrated receive path, transmit path, VCO, frequency synthesizer, and baseband/control interface. Only the PA, RF switches, RF bandpass filters (BPF), RF baluns, and a small number of passive components are needed to form the complete RF front-end solution.

Each IC completely eliminates the need for external SAW filters by implementing on-chip monolithic filters for both the receiver and transmitter. The baseband filtering and the Rx/Tx signal paths are optimized to meet the 802.11a and 802.11g IEEE® standards. Each device is suitable for the full range of the corresponding 802.11a/g OFDM data rates (6Mbps, 9Mbps, 12Mbps, 18Mbps, 24Mbps, 36Mbps, 48Mbps, and 54Mbps) and 802.11g QPSK data rates (1Mbps, 2Mbps, 5.5Mbps, and 11Mbps), at the required sensitivity levels. The MAX2825/MAX2826/MAX2827 transceivers are available in the small 56-pin, exposed paddle thin QFN package.

Key Features

  • Single- and Dual-Band Operation
    • MAX2825: 2.4GHz to 2.5GHz
    • MAX2826: 5.15GHz to 5.35GHz
    • MAX2827: 2.4GHz to 2.5GHz and 5.15GHz to 5.35GHz
  • Two Operating Modes (MAX2827)
    • 802.11g (54Mbps 64-QAM OFDM and 11Mbps CCK)
    • 802.11a (54Mbps 64-QAM OFDM)
  • Complete RF Transceiver
    • -75dBm Receiver Sensitivity at 54Mbps (802.11g)
    • 40dB Rx Sideband Suppression
    • -36dB Transmitter EVM
    • -98dBc/Hz at 100kHz LO Phase Noise
    • Programmable Baseband Lowpass Filters
    • Integrated PLL with 3-Wire Serial Interface
    • 94dB Receive Gain-Control Range
    • 200ns Rx I/Q DC Settling
    • 60dB Dynamic Range Receive RSSI
    • 30dB Transmit Power-Control Range
    • Tx and Rx I/Q Error Detection
    • Digital Tx/Rx Mode and Gain Control
  • Single +2.7V to +3.6V Supply
  • 10µA Low-Power Shutdown Mode
  • Small 56-Pin TQFN Package (8mm x 8mm)

Applications/Uses

  • 2.4GHz 802.11b/g Single-Band Radio
  • 2.4GHz/5GHz 802.11a/b/g Dual-Band Radio
  • 5GHz 802.11a Single-Band Radio

Technical Docs

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Parameters

Key Features

  • Single- and Dual-Band Operation
    • MAX2825: 2.4GHz to 2.5GHz
    • MAX2826: 5.15GHz to 5.35GHz
    • MAX2827: 2.4GHz to 2.5GHz and 5.15GHz to 5.35GHz
  • Two Operating Modes (MAX2827)
    • 802.11g (54Mbps 64-QAM OFDM and 11Mbps CCK)
    • 802.11a (54Mbps 64-QAM OFDM)
  • Complete RF Transceiver
    • -75dBm Receiver Sensitivity at 54Mbps (802.11g)
    • 40dB Rx Sideband Suppression
    • -36dB Transmitter EVM
    • -98dBc/Hz at 100kHz LO Phase Noise
    • Programmable Baseband Lowpass Filters
    • Integrated PLL with 3-Wire Serial Interface
    • 94dB Receive Gain-Control Range
    • 200ns Rx I/Q DC Settling
    • 60dB Dynamic Range Receive RSSI
    • 30dB Transmit Power-Control Range
    • Tx and Rx I/Q Error Detection
    • Digital Tx/Rx Mode and Gain Control
  • Single +2.7V to +3.6V Supply
  • 10µA Low-Power Shutdown Mode
  • Small 56-Pin TQFN Package (8mm x 8mm)

Applications/Uses

  • 2.4GHz 802.11b/g Single-Band Radio
  • 2.4GHz/5GHz 802.11a/b/g Dual-Band Radio
  • 5GHz 802.11a Single-Band Radio

Description

The MAX2825/MAX2826/MAX2827 single-chip, RF transceiver ICs are designed specifically for 802.11 WLAN applications. The MAX2825 is designed for single-band 2.4GHz 802.11g (OFDM and CCK) and the MAX2826 for single-band 5GHz 802.11a (OFDM). The MAX2827 is designed for dual-band 802.11a+g applications. The ICs include all circuitry required to implement the RF transceiver function, providing a fully integrated receive path, transmit path, VCO, frequency synthesizer, and baseband/control interface. Only the PA, RF switches, RF bandpass filters (BPF), RF baluns, and a small number of passive components are needed to form the complete RF front-end solution.

Each IC completely eliminates the need for external SAW filters by implementing on-chip monolithic filters for both the receiver and transmitter. The baseband filtering and the Rx/Tx signal paths are optimized to meet the 802.11a and 802.11g IEEE® standards. Each device is suitable for the full range of the corresponding 802.11a/g OFDM data rates (6Mbps, 9Mbps, 12Mbps, 18Mbps, 24Mbps, 36Mbps, 48Mbps, and 54Mbps) and 802.11g QPSK data rates (1Mbps, 2Mbps, 5.5Mbps, and 11Mbps), at the required sensitivity levels. The MAX2825/MAX2826/MAX2827 transceivers are available in the small 56-pin, exposed paddle thin QFN package.

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal