两种相位抵消法消侧音原理及其电路形式

Mod e rn E l ec t ro n i c s T ec h n i q ue Anti-s idetone pri nciples of two phase cancel lation techniques and their typical ci rcui ts LIA N G Zha n , X U E ] i e Vo l . 3 6 N o . 1 9 Ab st ract : To b e t te r u nd e r s t d nd a nd u se t h e c om mo nl y u s ed a n t i— s i d eto ne c i rc u i t s , a nt i— s i d e to ne p r i nc i p l es o f t wo p ha s e c a n c e l l a t i o n t e c h n i q u e s real i z e d b y t he a d d r t i o n a n d s u b t ra c t ion c i r c u i t s re s p ec t i ve l y a re d i s c u s s ed i n t h e pa p e r . Se v e r a l t y p i c a l c i rc n i t s a re a p p l i e d i n th e o p e ra t t o na l am p l i f i e rs . To i nt u i t i ve l y u n d e rs t a nd t h e fea t u res of each t yp i c a l c i rc u i t , t he vo l t a g e r a t io o f r e c e i v ed s i g na l s a n d t ran s m i t t ed s i g na l s i s e s t i ma t e d . Ev e r y t yp i c a l c i rc u i t i s s i m u l a t ed b y T I N A- T I s o f t wa re a nd v er i f i ed b y t h e a c t ua l c i rc u i t . I t i s i nd t e a t e d t hat t h e e s t i ma t i o n va l u e i s co ns i s t e n t w i th t h e s i m u l a t io n and ve r i f ic a t io n re s u l t s . T h e s e p r i n- c i p l e s o f a nt i- s i d e to n e a nd t y p i c a l c i rc u i t s c a n b e a p p l i e d i n wi red o r wi r e l e s s i nt e rco m s y s t em . F ina ll y , t h e e xpe r i e nc e i n d e s i g - n i ng a nd p rod u c i ng t h e a n t i— s i d et o ne c i rc u i I s i s s h a r e d . k eywo rds : p h a se ca nce l l a t i o n tec hn iq u e ; a nt i- s i d e t o ne ; i n t e rc o m s y s t em ; o pe rat io n al am p l i f i e r × . iª + ± 3ª ×× . a r a s: se: • in ii z n a a a • . :i » » n z±a ÷.x . s +r . a ae ÷e u « a is i×n 1 8 6