Title :
High-performance c.c.d. channel filter for a p.c.m. codec
Author :
Tadayoshi, Enomoto ; Tsutomu, Ishihara ; Masaaki, Yasumoto ; Seiya, Shida
Author_Institution :
Nippon Electric Co. Ltd., Central Research Laboratories, Kawasaki, Japan
Abstract :
A monolithic c.c.d. filter for p.c.m. codec was fabricated employing both a minimum-phase design with a substantially reduced number of taps and almost perfect elimination of excess capacitances. Results, such as negligible degradation in frequency responses, considerable reduction of common-mode signal, low filter noise (¿78 dBm) and wide dynamic range (84 dB) were successfully obtained.
Keywords :
charge-coupled device circuits; encoding; filters; pulse-code modulation; channel filter; charge coupled device circuits; codec; common mode signal; encoding; excess capacitances; frequency responses; noise; pulse code modulation; wide dynamic range;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19790581
