s tv5 1 12 r g b h i g h v o l t a g e v i d e o a m p l i f i e r april 1998 . b a nd w i d t h : 8 m h z t y p i c a l . s u p p l y v o l t a g e : 220 v t y p i c a l . r i se a nd f a l l t i m e : 50n s t y p i c a l . c r t c a t h o d e c urr e n t o u t p u t s f o r p a r a ll e l o r se q u e n t i a l cu t - o ff o r driv e a djustment . f l a s h o v e r p r o t e c t i o n . p o w e r d i ss i p a t i o n : 3 . 6 w d es cr i p t i o n t he s t v 5 1 12 i n c l ude s t h r ee vi deo a m p li f i e r s de si - g n ed wi th a h i gh vo l t age b i po l a r / c m o s / d m o s t e chno l og y ( b cd ) . i t d r i v e s d i r e c t l y t he t h r ee c a t h - ode s and i s p r o t e c t ed aga i n s t f l a s ho ve r s . t han ks t o i t s t h r ee c a t hode cu r r en t ou t pu t s , t he s t v 5 1 12 c an be u sed wi t h bo t h pa r a ll e l and s equen t i a l s a m - p li ng app l i c a t i on s . 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 blue feedback blue cathode current blue output green feedback green cathode current green output red feedback red cathode current red output ground red input green input blue input dd cc v high voltage v low voltage tab connected to pin 8 5 1 1 2 - 0 1 . e p s p i n c o nn e c t i o n s ( t op vi e w ) m u lti w a t t 1 5 ( p l a st i c p a ckage ) o rd e r c o d e : s tv 5112 1/5 http://
p i n f unc t io n n func t i on d esc r i pt i on 1 bl ue i npu t i npu t o f t he b l ue a m p l i f i e r . it i s a vi r t ua l g r o u nd w i t h 2 . 5 v b i a s v o l t age an d 7 5 m a i npu t b i a s cu rr e n t. 2 v c c l o w vo l t age po w e r supp l y, t yp i ca ll y 9 v . 3 g r een i npu t i npu t o f t he g r een a m p l i f i e r . i t i s a vi r t u a l g r ound w i t h 2 . 5 v b i a s v o l t age a nd 75 m a i npu t b i a s cu rr e n t. 4 r ed i npu t i npu t o f t h e r ed a m p li f i e r . it i s a vi r t ua l g r ound wi th 2 . 5 v b i a s v o l t age and 7 5 m a i npu t b i a s cu rr en t. 5 v d d h i gh vo l t age p o w e r supp l y, t yp i ca ll y 220 v . 6 r ed c a t hode c u r r en t p r o vi de s t he v i deo p r o c e ss o r wi t h a cop y o f t h e d c c u rr e n t f l o w i ng i n t o t h e r e d ca t h ode , f o r au t o m a t i c c u t - o f f o r g a i n a d j u st m en t . i f t h i s c o n t r o l i s n o t u sed , p i n 6 m u s t be g r o u nd e d . 7 r ed o u t pu t o u t pu t d r i vi ng t he r e d ca t hod e . p i n 7 i s i n t e r na ll y p r o t e ct ed aga i n st cr t a r c d i scha r ge s b y a d i ode l i m i t i ng t h e ou t pu t vo l t age t o v d d . 8 g r oun d a l so conne ct ed t o t he hea t si n k . 9 r ed feedba ck o u t pu t d r i vi ng t he f eed b a ck r e si st o r n e t w o r k f o r t he r ed a m p li f i e r . 1 0 g r een o u t pu t o u t p u t d r i v i ng t h e g r e e n ca t h ode . p i n 10 i s i n t e r na l l y p r o t e ct ed a ga i n s t cr t a r c d i scha r ge s b y a d i ode l i m i t i ng t he o u t pu t vo l t ag e t o v d d . 1 1 g r een c a t hode c u rr en t p r o vi de s t he v i deo p r o c e ss o r wi t h a c op y o f t he dc c u rr en t f l o wi ng i n t o t he g r een c a t hode , f o r a u t o m a t i c c u t - o ff o r g a i n ad j u s t m en t. i f t h i s con t r o l i s no t u s ed , p i n 11 m u s t be g r ounded . 1 2 g r een fe edba ck o u t pu t d r i vi ng t he f eed b a ck r e si st o r n e t w o r k f o r t he g r een a m p li f i e r . 1 3 b l ue o u t pu t o u t pu t d r i vi ng t he b l ue ca t h ode . p i n 13 i s i n t e r na l l y p r o t e c t ed ag a i n st cr t a r c d i scha r ge s b y a d i ode l i m i t i ng t h e ou t pu t vo l t age t o v d d . 1 4 b l ue c a t hode c u rr en t p r o vi de s t he v i deo p r o c e ss o r wi t h a c op y o f t he dc c u rr en t f l o wi ng i n t o t he b l ue c a t hode , f o r a u t o m a t i c c u t - o ff o r g a i n ad j u s t m en t. i f t h i s con t r o l i s no t u s ed , p i n 14 m u s t be g r ounded . 1 5 b l ue fe e dba ck o u t pu t d r i vi ng t he f eed b a ck r e si st o r n e t w o r k f o r t he b l ue a m p li f i e r . 5 1 1 2 - 0 1 .tbl 1 2 8 refer e n c e v o l t a g e gnd (3, 4 ) 5 13 15 14 (11, 6 ) (10, 7) ( 1 2 , 9 ) 5 1 1 2 - 0 2 . e p s b l o c k d i a g ra m o f e ach cha n n e l s t v 51 1 2 2 / 5
a b s o l u t e m a x i m u m r a t i n g s s y m bol p a r a m e t e r v a l ue u nit v dd s upp l y h i gh v o l t a g e p i n 5 25 0 v v cc s upp l y lo w v o l t age p i n 2 20 v i o d i og o u t pu t c u r r en t t o v d d t o g r o u nd p i n s 7 - 10 - 1 3 p r o t e ct ed 8 m a i f d i f g o u t pu t c u r r en t < 50 m s d u r a t i on t o v d d t o g r o u nd p i n s 9 - 12 - 1 5 45 45 m a m a i j i npu t c u r r en t p i n s 1 - 3 - 4 60 m a t j jun ct i o n te m p e r a t u r e 15 0 c t o pe r o pe r a t i ng a m b i en t te m p e r a t u r e 0 , + 70 c t st g s t o r a g e te m pe r a t u r e - 20 , + 150 c 5 1 1 2 - 0 2.tbl therma l d a t a s y m bol p a r a m e t e r v a l ue u nit r t h ( j - c) jun ct i on - c a se t h e rm a l re si st an ce m a x. 3 c / w r t h ( j - a ) jun ct i on - a m b i en t the rm a l re si st an ce typ . 35 c / w 5112-03.tbl e l e ctrica l character i s t i c s v cc = 9 v ; v dd = 240 v ; t a m b = 25 o c ; a v = 55 ( un l e s s o t he r wi se s pe ci f i ed ) s y m bol p a r a m e t e r c ondi t i ons m i n. ty p. m a x . u nit v d d hi g h s upp l y v o l t age ( p i n 5 ) 220 2 4 0 v v c c lo w s u p p l y v o l t ag e ( p i n 2 ) 7 . 5 9 1 0 v i dd hi g h v o l t age s u p p l y i n t e r n a l dc c u rr en t ( w i t hou t cu rr en t due t o t he f eedb a c k ne t w o r k) v o u t = 120 v 9 . 5 1 5 m a i cc lo w v o l t age s upp l y i n t e r na l d c cu r r en t 38 5 5 m a v sa t h o u t p u t s a t u r a t i o n v o l t age ( hi gh l e ve l ) ( p i n s 7 - 10 - 1 3 ) i o = - 10 m a 5 v r o n o u t p u t m o s tr an si st o r ( lo w le ve l ) ( p i n s 7 - 10 - 1 3 ) 1 . 7 k w b w b an d w i d t h a t - 3 d b m ea su r ed on cr t ca t hode s. ( c l o a d = 10 p f , r p r o t e c t = 1 k w , v o u t = 120 v , d v o u t = 1 0 0 v pp ) 8 m h z t r , t f ri se & f a ll ti m e m ea su r ed be t w een 10 % & 9 0 % o f o u t pu t pu l se ( c l o a d = 10 p f , r p r o t e c t = 1 k w , v o u t = 120 v , d v o u t = 1 0 0 v pp 50 n s g o o pe n loop g a i n 47 50 d b o pe n loop g a i n d i ff e r en ce be t w ee n 2 ch a nne l s - 1 . 5 0 1 . 5 d b o pe n loop g a i n te m pe r a t u r e c oe ff i ci en t 0 d b / o c p i n t e r na l p o w e r d i ssi pa t i on ( se e ca l cu l a t i on be l o w ) v o u t = 2 m h z, 70 v pp sine w a ve , v b l a c k = 170 v , c l = 20p f, r f = 68 k w 3 . 6 w v r e f i n t e r na l v o l t age r e f e r en ce ( p i n s 1 - 3 - 4 ) v o u t = 120 v 2 . 3 2 . 5 2 . 7 v v o l t age r e f e r en ce t e m p e r a t u r e c oe ff i ci en t 0 m v / c i i b i np u t b i a s c u rr e n t ( p i n s 1 - 3 - 4 ) v o u t = 120 v 75 m a r i i np u t r e si st an ce 4 k w es d es d hu m an b o d y m o d e l 1 . 2 kv 5 1 1 2 - 0 4 . t b l s t v 5112 3/5
t yp i ca l a p p l i c a t io n t he s t v 5 1 12 i s c o m po s ed o f t h r ee i ndependen t a m p li f i e r s, ea c h o f t he m i n c l ud i ng : - a d i ff e r en t i a l a m p li f i e r , t he ga i n o f w h i ch i s f i x ed b y e x t e r na l f eedba c k r e s i st o r s, - a vo l t age r e f e r en ce , - a p m o s t r a n s i s t o r p r o v i d i n g a c op y o f t he ca t hod e cu r r en t, - a p r o t e c t i on d i ode aga i n st c r t a r c d i scha r ge s. p c b o a r d l ay o u t t he be st pe r f o r m an ce s o f t he h i gh vo l t age v i deo a m p li f i e r will be ob t a i ned on l y wi t h a c a r e f u ll y de si - gned p c boa r d . o u t pu t t o i npu t capa c i t an c e i s o f pa r t i c u l a r i m po r t an ce . f o r a s i ng l e a m p li f i e r , t he i np u t - ou t p u t c a pa c i t an c e , i n p a r a ll e l w i t h t he r e l a t i v e l y h i gh f eed b a c k r e s i s - t an c e , c r ea t e s a po l e i n t h e c l o s e d - l o op t r a n s f e r f u n c t i o n . a l o w pa r a s i t i c c apa ci t an c e ( 0 . 3p f ) f eedba c k r e si s- t o r and h f i so l a t ed p r i n t ed wi r e s a r e ne c e ss a r y . f u r t he r m o r e , capa c i t i v e coup li ng f r o m t he ou t pu t o f an a m p li f i e r t o w a r d t he i npu t o f ano t he r one m a y i ndu ce e xc e ssi v e c r o s s- t a l k. p o w e r d i ss i p a t i on t he po w e r d i s si pa t i on con s i st s o f a st a t i c p a r t and a d y na m i c pa r t . t he s t a t i c d i s si pa t i on i s a f un c t i on o f v o u t ( d c ) , v d d and r f . r ea sonab l e app r o xi m a - t i on o f t he st a t i c po w e r can be c a l cu l a t ed b y t he f o ll o wi ng equa t i on . p s = 3 v dd ( v d d - v o u t ) 40 k + 3 v o u t ( v d d - v o u t ) r f t he d y na m i c d i s si pa t i on d epend s on t he si gna l spe c t r u m , v o u t , v d d a n d t he l oad c apa ci t an ce . - f o r a si ne w a ve , d y n a m i c d i ss i pa t i on i s p d = 3 x f x c l x v o p p x 0 . 8 x v d d . t he l oad c apa ci t an ce c l i n cl ude s c r t and boa r d capa c i t an c e ( 10p f ) , and a m p li f i e r ou t pu t capa c i - t an ce (8pf ) : t otal c l value is about 20p f . 2 v r e f cat h o d e 1 4 7 0 w 1 k w 6 8 k w 3 3 p f * 4. 7 k w v cc 9 v 1 0 0 n f 1 0 0 m f 1 0 0 n f v d d 2 2 0 v 1 0 m f 5 1 0 w 4 7 0 p f v dd 8 5 9 7 6 4 9 1 0 w s t v5112 cat h o d e 2 v dd 12 1 0 1 1 3 ca t h o d e 3 v dd 15 1 3 1 4 1 cu t - o f f s a m p l i n g 5 1 12-03.eps fig u r e 1 : a pp li ca t i on e xa m p l e s t v 51 1 2 4/5
i n f o r m a t i on f u r n i s h e d i s b e l i eve d t o b e acc u r a t e a nd r e li a b l e . h o w eve r , s g s - t h o m s o n m i c r o e l e c t r on i cs ass u m e s no r e s p o n s i b i l i t y f o r t he c on se qu e n ces o f u se o f s u c h i n f o r m a t i on no r f o r a n y i n f r i ng e m e n t o f p a t e n t s o r o t h e r r i gh t s o f t h i r d p a r t i es w h i c h m ay r es u l t f r o m i t s u s e . n o l i ce n ce i s g r a n t e d b y i m p l i ca t i on o r o t h e r w i se und e r a n y p a t e n t o r p a t e n t r i gh t s o f s g s - t h o m s o n m i c r o e l ec t r on i cs . s p ec i f i ca t i on s m e n t i on e d i n t h i s pub l i ca t i on a r e s ub j e c t t o c h a ng e w i t h ou t no t i ce . th i s pu b l i ca t i on s up e r se d es a nd r e p l aces a l l i n f o r m a t i on p r ev i ou s l y s upp l i e d . s g s - t h o m s o n m i c r o e l e c t r on i cs p r odu c t s a r e no t a u t ho r i z e d f o r u s e as c r i t i ca l c o m pon e n t s i n l i f e s uppo r t d ev i ce s o r sys t e m s w i t hou t ex p r ess w r i tt e n a pp r o va l o f s g s - t h o m s o n m i c r o e l ec t r on i cs . ? 1 998 s g s - t h o m s o n m i c r o e l ec t r on i cs - a l l r i gh t s r ese r ve d p u r c h ase o f i 2 c c o m pon e n t s o f s g s - t h o m s o n m i c r o e l e c t r on i cs , c on vey s a l i ce n s e und e r t h e p h il i p s i 2 c p a t e n t . r i gh t s t o u se t h ese c o m pon e n t s i n a i 2 c sys t e m , i s g r a n t e d p r o v i d e d t h a t t h e sys t e m c on f o r m s t o t h e i 2 c s t a nd a r d s p ec i f i ca t i on s a s d e f i n e d b y p h i l i p s . s g s - t h o m s o n m i c r o e l ec t r on i cs g r o u p o f c o m p a n i e s a u s t r a li a - b r a z il - c anada - c h i n a - f r an c e - g e r m an y - i t a l y - j apan - k o r ea - m a l a y s i a - m a l t a - m o r o c c o t he n e t he r l a nd s - s i ngapo r e - s pa i n - s w e den - s w i t z e r l and - t a i w an - t ha il and - u n i t ed k i n gdo m - u . s . a . p m - m w 15v.eps p acka g e m e c h an i c a l d a t a : 15 p i n s C p l a s t i c m u l t i w a t t d i m e ns i ons milli m e t e r s i n c he s m i n. ty p. m ax . m i n. ty p. m ax . a 5 0 . 197 b 2 . 6 5 0 . 104 c 1 . 6 0 . 063 d 1 0 . 0 3 9 e 0 . 49 0 . 5 5 0 . 019 0 . 022 f 0 . 66 0 . 7 5 0 . 026 0 . 030 g 1 . 14 1 . 27 1 . 4 0 . 045 0 . 0 5 0 0 . 055 g 1 17 . 57 17 . 78 17 . 9 1 0 . 692 0 . 7 0 0 0 . 705 h 1 19 . 6 0 . 772 h 2 20 . 2 0 . 795 l 22 . 1 22 . 6 0 . 870 0 . 890 l1 22 22 . 5 0 . 866 0 . 886 l2 17 . 65 18 . 1 0 . 695 0 . 713 l3 17 . 25 17 . 5 17 . 7 5 0 . 679 0 . 6 8 9 0 . 699 l4 10 . 3 10 . 7 10 . 9 0 . 406 0 . 4 2 1 0 . 429 l7 2 . 65 2 . 9 0 . 104 0 . 114 m 4 . 20 4 . 30 4 . 6 0 0 . 170 0 . 1 6 9 0 . 181 m 1 4 . 50 5 . 08 5 . 3 0 0 . 177 0 . 2 0 0 0 . 209 s 1 . 90 2 . 6 0 0 . 075 0 . 102 s 1 1 . 90 2 . 6 0 0 . 075 0 . 102 di a . 1 3 . 65 3 . 8 5 0 . 144 0 . 152 m w 1 5 v .tbl s t v 5112 5/5
|
