Strategies in a cost-effective implementation of the PDC half-rate codec for wireless communications
Gerhard Paul Fettweis, Shihua Wang, S. Kobayashi, Toshiaki Kawasaki, Satomi Fujimaki, J. Muwafi, K. Gupta, M. Mitsutake, Y. Kameshima, H. Konoma, J. Zingman, Ensi Wu, Y. Mizushima, Y. Nambu, K. Yamozoe · 2002
An application specific 16-bit fixed-point DSP (AK 2377) has been developed which executes the PDC (Personal Digital Cellular) half-rate speech codec system, an 80 MOPS task, at only 20 MHz operation with a low-power consumption of 100 mW. This was achieved through an architecture which hosts a customized parallel data path with a low memory bandwidth, customized I/O, a VLIW-like instruction set, and software innovations to minimize the complexity requirements.