SAN JOSE, Calif.-AKM Semiconductor Inc. said it has introduced a third-generation chipset for wireless telephones and other communications devices that is less than half the size of current chipsets.
The new chipset delivers up to 100 hours of call-waiting time and adheres to the PCS-1900 Global System for Mobile communications standard for personal communications services, the company said.
The set includes a digital AK2388 and an analog AK2389. The digital AK2388 chip contains specialized digital signal processing and an embedded 32-bit reduced instruction set computer core ARM7 microprocessor. The company said the digital signal processor was optimized for mobile communications applications and requires 14.5 million instructions per second to implement entire functions such as speech codec, equalizing, channel codec and handset echo cancellation.
The analog AK2389 chip integrates all analog circuits required for the GSM baseband, AKM said. It consists of a Gaussian minimum shift key modulator; linear codec for voice; analog to digital converters for demodulation and digital to analog converters for automatic frequency control and automatic gain control functions.
