Title :
Single chip processor for CDP and CDROM
Author :
Lee, Yoon-hee ; Lee, Jae-Shin ; Kim, Yong-seog ; Chun, Hwan-sool ; Haruo, Itoh
Author_Institution :
Samsung Electron. Co. Ltd., Buchun, South Korea
Abstract :
This paper presents a single chip for compact disc players (CDPs) including the digital servo, DSP and 1 bit DAC. In the digital servo (by using the AGC function, and a new jump algorithm and auto adjust) it has eliminated manual adjust points and obtained high reliability, In the DSP part (by using the digital PLL) it needs no adjustable points, and increased the stability and reduced the locking time, and by using the 1 bit DAC it increased the audio performance and resolution for digital volume control. By integrating the three parts in a single chip, it reduced the set PCB area
Keywords :
CD-ROMs; Hi-Fi equipment; audio discs; digital control; digital phase locked loops; digital signal processing chips; digital-analogue conversion; servomechanisms; telecommunication control; 1 bit DAC; AGC function; CD-ROM; CDP; DSP; adjust points; audio performance; auto adjust; compact disc players; digital PLL; digital servo; digital volume control; jump algorithm; locking time; resolution; single chip processor; Circuits; Demodulation; Digital signal processing chips; Error correction; Iron; Optical reflection; Phase locked loops; Power lasers; Servomechanisms; Signal processing;
Conference_Titel :
Consumer Electronics, 1995., Proceedings of International Conference on
Conference_Location :
Rosemont, IL
Print_ISBN :
0-7803-2140-5
DOI :
10.1109/ICCE.1995.518024
