Tiny WiMAX transceiver improves SNR by 10dB
Maxim's latest RF transceiver increases data throughput and link range in nomadic and WiMAX subscriber applications, while its unique wafer-level packaging enables ultra-compact form factors.
SUNNYVALE, CA—October 6, 2009—Maxim Integrated Products (NASDAQ: MXIM) introduces the MAX2839AS, the industry's first single-chip, 2.3GHz to 2.7GHz, WiMAX™ MIMO RF transceiver in a 3.5mm x 5.1mm WLP (wafer-level package). This device builds on the success of the MAX2839 (QFN package), enabling ultra-small WiMAX modules for compact fixed and mobile applications.
Using a dual-receiver architecture to mitigate RF channel fading by as much as 10dB compared to a single-receiver architecture, the transceiver maximizes data throughput in nomadic and mobile WiMAX subscriber applications such as notebook computers, express/PC cards, USB dongles, smartphones, and in-home desktop CPE modems. The MAX2839AS is ideal for mobile WiMAX, Korean WiBro™, and other OFDM-based wireless broadband systems.
Designed using Maxim's high-performance SiGe BiCMOS process, the MAX2839AS provides the industry's best receiver noise performance. Both receivers feature the industry's lowest noise figure at 2.3dB, -81dBm sensitivity for a 64-QAM signal at a 5MHz channel bandwidth, and a 95dB gain control range that is digitally controlled in 1dB steps. Each device is factory calibrated to achieve better than -35dB EVM, -45dBc of sideband suppression, and carrier leakage of -40dBc.
The transmitter 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 MAX2839AS operates from a 2.7V to 3.6V supply. A low-power shutdown mode reduces current consumption to 10µA to save power in system-sleep/standby mode. The MAX2839AS is available in a 3.5 mm x 5.1 mm WLP. Pricing starts at $8.62 (1000-up, FOB USA). Contact the factory for the radio reference design or the complete RF and MAC/baseband reference design.
Maxim Integrated Products is a publicly traded company that designs, manufactures, and sells high-performance semiconductor products. The Company was founded over 25 years ago with the mission to deliver innovative analog and mixed-signal engineering solutions that add value to its customers' products. To date, it has developed over 6100 products serving the industrial, communications, consumer, and computing markets.
Maxim reported revenue in excess of $1.6 billion for fiscal 2009. A Fortune 1000 company, Maxim is included in the Nasdaq 100, the Russell 1000, and the MSCI USA indices. For more information, go to www.maxim-ic.com.
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