A digital temperature compensated crystal oscillator using a temperature adaptive capacitor array

Author

Je, Minkyu ; Gil, Joonho ; Kwak, Jaeyoung ; Yoo, Hoi-Jun ; Shin, Hyungcheol

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea

fYear

1999

fDate

1999

Firstpage

263

Lastpage

265

Abstract

We propose a new capacitor array scheme that we call a temperature adaptive capacitor array (TACA) and use it to achieve complete digital trimming of the TCXO at 20 MHz with 0.3 ppm trimming accuracy. The TACA scheme guarantees monotonicity and saves silicon area at the same time. About 10 % reduction in array layout area and about 14 % reduction in the pre-decoding logic area are reported

Keywords

application specific integrated circuits; arrays; capacitors; circuit simulation; circuit tuning; crystal oscillators; integrated circuit layout; 20 MHz; SPICE simulation; array layout area; digital TCXO; digital trimming; monotonicity; pre-decoding logic area; silicon area; temperature adaptive capacitor array; trimming accuracy; Adaptive arrays; Capacitance; Capacitors; Decoding; Frequency; Logic circuits; Oscillators; Silicon; Switches; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI and CAD, 1999. ICVC '99. 6th International Conference on

Conference_Location

Seoul

Print_ISBN

0-7803-5727-2

Type

conf

DOI

10.1109/ICVC.1999.820900

Filename

820900

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3529489