RF Transceiver handles 2.3-2.7 mobile WiMAX applications.

Press Release Summary:

MAX2839 zero-IF MIMO RF transceiver utilizes dual-receiver technology to deliver noise figure at 2.3 dB, -81 dBm sensitivity for 64-QAM signal at 5 MHz channel bandwidth, and 95 dB gain control range that is digitally controlled in 1 dB steps. Also, it delivers 0 dBm linear output with 64-QAM signal, greater than -45 dBc of sideband suppression, and more than -36 dB EVM. Operating from 2.7-3.6 V supply, it is available in 8 x 8 mm, leadless, 56-pin TQFN package.

Original Press Release:

Industry's First Production-Ready, Single-Chip, 2.3GHz to 2.7GHz, WiMAX MIMO RF Transceiver Improves Receiver SNR by 10dB

Single-Chip, WiMAX MIMO RF Transceiver Maximizes Data Throughput and Link Range

o The MAX2839 is the industry's first production-ready, single-chip, zero-IF MIMO RF transceiver for 2.3GHz to 2.7GHz mobile WiMAX applications.
o This receiver improves signal-to-noise ratio by 10dB in channel-fading conditions, enabling maximum data throughput and link range for nomadic or mobile WiMAX subscribers.
o To achieve this performance, the MAX2839 utilizes a dual-receiver architecture.
o The MAX2839 is ideal for mobile WiMAX, Korean WiBro, and other OFDM-based wireless broadband systems.

SUNNYVALE, CA-April 28, 2008-Maxim Integrated Products (Pink OTC Markets: MXIM) introduces the MAX2839, the industry's first single-chip, 2.3GHz to 2.7GHz, WiMAX(TM) MIMO RF transceiver in high-volume production. This device uses a dual-receiver architecture to mitigate RF channel fading, thereby increasing the signal-to-noise ratio (SNR) by as much as 10dB compared to a single-receiver architecture. This improved performance maximizes the data throughput and radio-link range of nomadic and mobile WiMAX subscriber applications in notebook computers, express/PC cards, smartphones, and in-home desktop CPE modems. Currently shipping in volume to customers worldwide, the MAX2839 is ideal for mobile WiMAX, Korean WiBro, and other OFDM-based wireless broadband systems.

Designed using Maxim's in-house, high-performance SiGe BiCMOS process, the MAX2839 provides the industry's best receiver noise performance. Both of the two receivers feature the industry's lowest noise figure at 2.3dB, -81dBm sensitivity for a 64-QAM signal at 5MHz channel bandwidth, and a 95dB gain control range that is digitally controlled in 1dB steps. Factory calibrated to achieve better than -35dB EVM, -45dBc of sideband suppression, and carrier leakage of -40dBc without DC-offset correction, the receivers significantly simplify integration with the digital MAC/baseband IC.

On the transmitter, the MAX2839 features a 62dB gain control range, digitally controlled in 1dB steps. It delivers a 0dBm linear output with a 64-QAM signal, greater than -45dBc of sideband suppression, and more than -36dB EVM, while meeting a -70dBr spectral mask.

The MAX2839 operates from a 2.7V to 3.6V supply. A low-power shutdown mode reduces current consumption to 10 microamps to save power in system-sleep/standby mode. This transceiver is available in a small, 8mm x 8mm, leadless, 56-pin TQFN package. Pricing starts at $9.31 (1000-up, FOB USA). An evaluation kit is available to speed designs. Contact the factory for the radio reference design or the complete RF and MAC/baseband reference design.

Maxim Integrated Products, a two billion dollar company, designs and manufactures ICs for analog and mixed-signal applications. The company has designed over 5400 products, more than any other analog semiconductor company, in the 25 years since its founding.

WiMAX is a trademark of the WiMAX Forum.

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