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TI unveils 'most integrated' multi-channel signal processor

Posted: 27 Oct 2005 ?? ?Print Version ?Bookmark and Share

Keywords:texas instruments? ti? signal processor? afe8406?

Texas Instruments Inc. (TI) introduced what it touts as the industry's most integrated, highest performance diversity mixed signal receive processor for 3G base stations and fixed wireless communication devices. The new AFE8406 multi-carrier chip integrates a dual 14bit 85MSPS analog-to-digital converter (ADC) and sixteen channels of programmable digital down conversion (DDC) into a single device.

According to the press release, the multi-channel communication signal processor offers increased density, resulting in lower costs for systems supporting a range of 3G standards. The multiple DDC channels allow a larger number of carriers per signal chain, translating to significantly reduced implementation costs, added TI. The AFE8406 can be configured to support up to four-carrier UMTS, eight-carrier CDMA or eight-carrier TD-SCDMA diversity receivers.

"The release of the 3G spectrum in China will create a large demand for advanced wireless infrastructure applications, providing the next-level of mobile telecommunications services and features to the world's largest cellular market," said David Briggs, TI's analog wireless infrastructure business manager, in a statement. "TI has responded to the wireless infrastructure designers' needs for enhanced integration, higher performance and increased density for 3G applications with its new AFE8406."

The AFE8406 promises outstanding intermediate frequency (IF) performance with extremely low noise to enable multi carrier operations. At an input frequency of 140MHz, this device delivers signal-to-noise ratio (SNR) of greater than 68dB and spurious free dynamic range (SFDR) of greater than 70dBc.

The new communication signal processor is available in a 484-pin 23-by-23mm ball grid array (BGA) package. Samples are already available with projected production in 1Q 2006. For developers using the AFE8406, TI provides an evaluation module for easy integration of the device into wireless infrastructure base stations and other targeted applications.

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