Sunnyvale, Calif.—Maxim Integrated Products has designed its MAX2557/MAX2597, a WCDMA Band II and Band V femto base-station transceiver chipset with a unique digital interface for the North American UMTS market.

The receiver (MAX2557) and transmitter (MAX2597) use Maxim's proprietary high dynamic range MAX-PHY interface to eliminate the need for a mixed-signal analog front-end. The MAX2557 has four low-noise amplifier (LNA) inputs to allow monitoring of WCDMA and GSM macro-network signals. The MAX2599 integrates power amplifiers (PAs) to further reduce BOM expense.

The MAX2557/MAX2597 are the North American versions of Maxim's previously released UMTS Band I solution: the MAX2547/MAX2599 transceiver chipset. The MAX2557 is available in a 48-pin fcLGA package, while the MAX2597 is packaged in a 64-pin fcLGA. Both devices operate over the -40°C to +85°C extended industrial temperature range.

Datasheets: MAX2557 and MAX2597.

Maxim Integrated Products, www.maxim-ic.com