An analog memory for a QCIF format image frame storage

Author

Gerna, D. ; Brattoli, M. ; Chioffi, E. ; Colli, G. ; Pasotti, M. ; Tomasini, A.

Author_Institution

SGS-Thomson Microelectron., Agrate Brianza, Italy

Volume

1

fYear

1996

fDate

12-15 May 1996

Firstpage

289

Abstract

An analog memory suitable for storage of a photogenerated image frame is described. An architecture that allows a fast writing rate is presented. The memory has a serial input and eight channels parallel output; it can store a QCIF image (176×144 pixels) for 1/15 sec with an equivalent precision of 7 bit. Nominal input writing frequency is 2.5 MHz and output reading frequency is 0.833 MHz. The chip needs an external reference clock at 2.5 MHz. The single cell size is 22×21.2 μm. The consumption power of the chip is 6 mW@5 Volts power supply. It has been made using a 0.7 μm CMOS technology supplied by SGS-Thomson

Keywords

CMOS analogue integrated circuits; CMOS memory circuits; analogue storage; image processing; 0.7 micron; 0.833 MHz; 144 pixel; 176 pixel; 2.5 MHz; 5 V; 6 mW; CMOS chip; QCIF format; analog memory; photogenerated image frame storage; Analog circuits; Analog memory; CMOS technology; Frequency; Image storage; MOS capacitors; Phased arrays; Signal processing algorithms; Temperature; Writing;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1996. ISCAS '96., Connecting the World., 1996 IEEE International Symposium on

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-3073-0

Type

conf

DOI

10.1109/ISCAS.1996.539886

Filename

539886