|
Design of a CMOS Sawtooth-Wave Oscillator Circuit' G# Z4 ~: w' Y
MA Tian-hua , J IANGGuo-ping ,WANG Li
7 e% Y! |/ Q" w: K5 d(School of Electronic Engineer ing , Dalian University of Technology ,Dalian Liaoning 1 1 60 2 3 , China)& c. f: H/ e6 o8 S5 B6 f% z
Abstract :A Sawtooth - Wave Oscillator Circuit based on 1 .2 μm CMOS technology is designed .On [8 }$ T2 }" }2 Y
being designed ,comparator is regarded as a key circuit ,meanwhile , the method of constant current
- u$ j% I9 b! tsource charging and discharging is used . Of course , the design of each component circuit is also explained( f! V1 _1 H+ A/ @3 F- n
.The oscillator circuit is emulated by using the tool of Cadence SpectreS .It shows that the oscillating8 {( n( Y8 i7 o2 I% C+ @& J3 \: E
frequency has a good characteristic of linearity .When the power voltage is 5 .0 V or so, the v" P9 Q* Q5 d* J" W; j
frequency is stable ,so does it from 27℃ to 55℃ .Because of the better performances with the change
" ~( S% ^+ R9 [& Z! ]* Q# b0 Jof appropriate supply voltage and temperature , this Oscillator Circuit can be widely used in many
4 l" p. u e- qkinds of electronic circuits .$ ^' h0 Y5 j/ E3 y+ k% B
% b" x" y$ `+ X$ L, U7 O回覆後 可以下載PDF附件 權限20 & 2RDB4 g# h- }5 T+ \' c2 S* W. i
|
本帖子中包含更多資源
您需要 登錄 才可以下載或查看,沒有帳號?申請會員
x
評分
-
查看全部評分
|