DocumentCode
2868971
Title
Interpolative PCM CODECs with multiplexed digital filters
Author
Kuwahara, Hideo ; Kosugi, H. ; Imai, Koichi ; Yumoto, O. ; Ohnishi, Masato ; Amada, E. ; Okabe, Toshiya ; Shirasu, H.
Author_Institution
Hitachi Central Research Laboratory, Tokyo, Japan
Volume
XXIII
fYear
1980
fDate
13-15 Feb. 1980
Firstpage
174
Lastpage
175
Abstract
A single-chip CODEC - a 32kHz sampling 12b linear AD/DA - with pre-post - filters implemented in I2L without trimruing, will be described. The digital filter chip is shared between four CODECs: it has a 88dB dynamic range and operates at 2MHz with 16b word length.
Keywords
Circuits; Codecs; Degradation; Digital filters; Frequency conversion; Phase change materials; Sampling methods; Signal to noise ratio; Telephony; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference. Digest of Technical Papers. 1980 IEEE International
Conference_Location
San Francisco, CA, USA
Type
conf
DOI
10.1109/ISSCC.1980.1156029
Filename
1156029
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