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Single-/Dual-Band 802.11a/b/g World-Band Transceiver ICs

802.11a and 802.11a/g RF Transceivers Support Pre-802.11n MIMO and Smart-Antenna Radio Systems

Product Details

The MAX2828/MAX2829 single-chip, RF transceiver ICs are designed specifically for OFDM 802.11 WLAN applications. The MAX2828 is designed for single-band 802.11a applications covering world-band frequencies of 4.9GHz to 5.875GHz. The MAX2829 is designed for dual-band 802.11a/g applications covering world-bands of 2.4GHz to 2.5GHz and 4.9GHz to 5.875GHz. 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/g IEEE® standards and cover the full range of the required data rates (6, 9, 12, 18, 24, 36, 48, and 54Mbps for OFDM; 1, 2, 5.5, and 11Mbps for CK/DSSS), at receiver sensitivity levels up to 10dB better than 802.11a/g standards. The MAX2828/MAX2829 transceivers are available in the small 56-pin, exposed paddle thin QFN package.

Key Features

  • World-Band Operation
    • MAX2828: 4.9GHz to 5.875GHz (802.11a)
    • MAX2829: 2.4GHz to 2.5GHz and 4.9GHz to 5.875GHz (802.11a/b/g)
  • Best-In-Class Transceiver Performance
    • -75dBm Rx Sensitivity at 54Mbps (802.11g)
    • -46dB (802.11g)/-51dB (802.11a) Tx Sideband Suppression
    • 1.5% (802.11g) and 2% (802.11a) Tx EVM
    • -100dBc/Hz (802.11g)/-95dBc/Hz (802.11a) LO Phase Noise
    • Programmable Baseband Lowpass Filters
    • Integrated PLL with 3-Wire Serial Interface
    • 93dB (802.11g)/97dB (802.11a) Receiver Gain- Control Range
    • 200ns Rx I/Q DC Settling
    • 60dB Dynamic Range Rx RSSI
    • 30dB Tx Power-Control Range
    • Tx/Rx I/Q Error Detection
    • I/Q Analog Baseband Interface for Tx and Rx
    • Digital Mode Selection (Tx, Rx, Standby, and Power Down)
    • Supports Both Serial and Parallel Gain Control
  • MIMO and Smart Antenna Compatibility
    • Coherent LO Phase Among Multiple Transceivers
  • Support 40MHz Channel Bandwidth (Turbo Mode)
  • Single +2.7V to +3.6V Supply
  • 1µA Low-Power Shutdown Mode
  • Small 56-Pin TQFN Package (8mm x 8mm)

Applications/Uses

  • 2.4GHz/5GHz MIMO and Smart Antenna Systems
  • 4.9GHz Public Safety Radios
  • Single-/Dual-Band 802.11a/b/g Radios
Parametric specs for RF Transceivers > 1GHz
Duplex Method OFDM
Frequency Range (MHz) 4900 to 5875
Inputs 1 Rx
Outputs 1 Tx
Package/Pins TQFN/56
Budgetary
Price (See Notes)
$17.22 @1k
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Simplified Block Diagram

MAX2828: Pin Configuration MAX2828: Pin Configuration Zoom icon

Technical Docs

Design & Development

Click any title below to view the detail page where available.

Description

The MAX2828/MAX2829 evaluation kits (EV kits) simplify the testing of the MAX2828/MAX2829. The EV kits provide 50Ω SMA connectors for all RF and baseband inputs and outputs. Differential-to-single-ended and single-ended-to-differential line drivers are provided to convert the differential I/Q baseband inputs and outputs of the MAX2828/MAX2829 to single-ended ports.

The EV kits simplify evaluation of the receive and transmit performance in the corresponding 802.11x bands.

View Details

Features

  • On-Board Line Drivers and Voltage Reference
  • 50Ω SMA and BNC Connectors on All RF and Baseband Ports
  • PC Control Software Available at www.maximintegrated.com
  • 3-Wire Serial Interface

Description

The MAX2828/MAX2829 evaluation kits (EV kits) simplify the testing of the MAX2828/MAX2829. The EV kits provide 50Ω SMA connectors for all RF and baseband inputs and outputs. Differential-to-single-ended and single-ended-to-differential line drivers are provided to convert the differential I/Q baseband inputs and outputs of the MAX2828/MAX2829 to single-ended ports.

The EV kits simplify evaluation of the receive and transmit performance in the corresponding 802.11x bands.

View Details

Features

  • On-Board Line Drivers and Voltage Reference
  • 50Ω SMA and BNC Connectors on All RF and Baseband Ports
  • PC Control Software Available at www.maximintegrated.com
  • 3-Wire Serial Interface

Description

The INTF3000 interface board is designed to facilitate the interfacing of Maxim’s evaluation kit (EV) boards to any personal computer (PC) through the USB port.

There are three different connectors on the INTF3000 interface board available to communicate with the EV board: INTF2300, INTF2400, and DB25 (LPT) parallel connector. The INTF2400 connector is intended for new designs, while the INTF2300, INTF2400, and DB25 parallel connector can support legacy EV boards that are already configured for one of these types of interfaces. It must be noted that legacy EV boards that were designed to com- municate with the PC through DB25 parallel port must also have an updated control software which supports the INTF3000 interface board.

All three connectors on INTF3000 interface board sup- port logic levels from 2V to 5V. The INTF3000 requires no special driver installations on the host PC. The board connects to the PC with a standard USB cable.

View Details

Features

  • Parallel Port-to-USB Interface
  • Serial port interface (SPI) to USB Interface
  • Supports Wide Voltage Range: 2V — 5V
  • INTF2400 Connector Compatible with Old INTF2400 LPT Port Boards
  • Addressing Enables the Use of up to Four Boards on a Single PC

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SIMULATION MODELS

MAX2828 IBIS Model

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Parameters

Key Features

  • World-Band Operation
    • MAX2828: 4.9GHz to 5.875GHz (802.11a)
    • MAX2829: 2.4GHz to 2.5GHz and 4.9GHz to 5.875GHz (802.11a/b/g)
  • Best-In-Class Transceiver Performance
    • -75dBm Rx Sensitivity at 54Mbps (802.11g)
    • -46dB (802.11g)/-51dB (802.11a) Tx Sideband Suppression
    • 1.5% (802.11g) and 2% (802.11a) Tx EVM
    • -100dBc/Hz (802.11g)/-95dBc/Hz (802.11a) LO Phase Noise
    • Programmable Baseband Lowpass Filters
    • Integrated PLL with 3-Wire Serial Interface
    • 93dB (802.11g)/97dB (802.11a) Receiver Gain- Control Range
    • 200ns Rx I/Q DC Settling
    • 60dB Dynamic Range Rx RSSI
    • 30dB Tx Power-Control Range
    • Tx/Rx I/Q Error Detection
    • I/Q Analog Baseband Interface for Tx and Rx
    • Digital Mode Selection (Tx, Rx, Standby, and Power Down)
    • Supports Both Serial and Parallel Gain Control
  • MIMO and Smart Antenna Compatibility
    • Coherent LO Phase Among Multiple Transceivers
  • Support 40MHz Channel Bandwidth (Turbo Mode)
  • Single +2.7V to +3.6V Supply
  • 1µA Low-Power Shutdown Mode
  • Small 56-Pin TQFN Package (8mm x 8mm)

Applications/Uses

  • 2.4GHz/5GHz MIMO and Smart Antenna Systems
  • 4.9GHz Public Safety Radios
  • Single-/Dual-Band 802.11a/b/g Radios

Description

The MAX2828/MAX2829 single-chip, RF transceiver ICs are designed specifically for OFDM 802.11 WLAN applications. The MAX2828 is designed for single-band 802.11a applications covering world-band frequencies of 4.9GHz to 5.875GHz. The MAX2829 is designed for dual-band 802.11a/g applications covering world-bands of 2.4GHz to 2.5GHz and 4.9GHz to 5.875GHz. 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/g IEEE® standards and cover the full range of the required data rates (6, 9, 12, 18, 24, 36, 48, and 54Mbps for OFDM; 1, 2, 5.5, and 11Mbps for CK/DSSS), at receiver sensitivity levels up to 10dB better than 802.11a/g standards. The MAX2828/MAX2829 transceivers are available in the small 56-pin, exposed paddle thin QFN package.

Simplified Block Diagram

MAX2828: Pin Configuration MAX2828: Pin Configuration Zoom icon

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