Reverse link demodulator ASIC for CDMA cellular system

Jin il Hyun, Jin Jong Cha, In Kang, Jaeseok Kim, Kyungsoo Kim

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)


In this paper, we describe the design and implementation of code division multiple access (CDMA) base station demodulator (CBD) ASIC for the use in IS95-based CDMA mobile communication system. We propose a novel design method for the noncoherent OQPSK PN correlator, fast Hadamard transformer (FHT), lock detector, and time tracking loop, which are the main functional blocks of the demodulator. We also present the implementation environment for the design and verification of demodulator ASIC. The chip has been designed using cell-based design methodology and fabricated by double-metal 0.8-μm CMOS technology. The die of the chip measures 8.1 × 8.3 mm and it contain approximately 76,000 logic gates and 3,000 bits of static RAM.

Original languageEnglish
Pages (from-to)276-279
Number of pages4
JournalProceedings - IEEE International Symposium on Circuits and Systems
Publication statusPublished - 1996
EventProceedings of the 1996 IEEE International Symposium on Circuits and Systems, ISCAS. Part 1 (of 4) - Atlanta, GA, USA
Duration: 1996 May 121996 May 15

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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