Electronic Design

SoCs Tackle Embedded Audio Applications

Targeting embedded audio and voice applications in IP phones, personal navigation devices, portable media players, and mobile Internet devices, the CX2070X family of SoCs integrate audio/voice DSPs, multi-bit codecs, digital and analog input/out interfaces, and a 2.5W per channel Class-D amplifier or optional post-width modulation and differential line outs. Proprietary audio-enhancement features include sub-band acoustic echo cancellation, beam forming, end-to-end noise reduction, line echo cancellation, BrightSound, which is a comprehensive suite of parametric equalization, dynamic range compression, and digital crossover algorithms, 3-D phantom speakers, and 3-D virtual immersion. Available in a variety of configurations, additional features include a preset-configuration tool and software for evaluating/developing audio subsystems without a PC or microprocessor. Pricing for the CX2070X family in 76-pin QFN package ranges from $2.25 to $3.75 each/10,000. CONEXANT SYSTEMS INC., Red Bank, NJ. (888) 855-4562.
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