h igh s peed d river s spectrum microwave t el : 508-485-6350 fax: 508-485-516 8 165 cedar hill s t ree t, marlborough , ma 0175 2 www.spectrummicrowave.co m metal welded package DDF2311 ddf3311 ddf4311 2-, 3- & 4- c hannel m u l t i p l e i n d e p e n d e n t h i g h- s p e e d d r i v e r s w i t h 3 0 0 m a p e a k c u r r e n t s p i k e s . 1 . i n p u t s a r e n o n - i n v e r t i n g w h e n m o d e c o n t r o l h a s a l o g i c h i g h i n p u t . 2 . i n p u t s a r e i n v e r t i n g w h e n m o d e c o n t r o l h a s a l o g i c l o w i n p u t . 3 . t o i n c r e a s e s w i t c h i n g s p i k e c u r r e n t s , a d d a c a p a c i t o r o f u p t o 5 6 0 p f b e t w e e n t h e o u t p u t a n d t p p i n s . 4 . m o d e c o n t r o l a n d i n p u t p i n s a r e i n t e r c h a n g e a b l e w i t h i n a n y o n e c h a n n e l . 5 . w h e n d r i v i n g a n o d e - g r o u n d e d d i o d e s , e x c e s s i v e p o w e r d i s s i p a t i o n m u s t b e a v o i d e d . v e e s h o u l d b e l i m i t e d t o - 8 v w i t h - 5 v r e c o m m e n d e d . 6 . t h e d d f 2 3 1 1 / 3 3 1 1 / 4 3 1 1 d o n o t h a v e a t r u e c u r r e n t s o u r c e o u t p u t . i n s t e a d t h e o u t p u t i s c o n n e c t e d t o a 3 8 0 - o h m r e s i s t o r i n p a r a l l e l w i t h a 5 6 0 p f c a p a c i t o r a n d t h e d r i v e n e n d o f t h i s r c c o m b i n a t i o n i s s w i t c h e d b e t w e e n + 4 v a n d v e e s o t h a t t h e n e g a t i v e o u t p u t c u r r e n t v a r i e s d i r e c t l y w i t h v e e . t p o u t p u t n c n o n - i n v e r t i n g i n p u t g r o u n d m o d e # 1 m o d e # 2 i n p u t # 2 n c o u t p u t # 2 t p 1 2 2 1 1 1 2 3 9 5 m a x 6 4 5 m a x ( ? 5 v t o ? 1 5 v ) n / c n / c d d f 2 3 1 1 x x x x t o p v i e w + 5 v 5 0 0 m i n t y p p k g b o t t o m 0 . 0 5 0 0 . 0 3 8 1 2 5 m a x 0 1 0 0 0 2 5 0 0 m i n t y p 0 1 5 6 4 5 s q m a x 1 2 2 1 1 1 2 g r o u n d i n p u t # 1 m o d e c o n t r o l # 1 i n p u t # 2 m o d e c o n t r o l # 2 i n p u t # 3 m o d e c o n t r o l # 3 i n p u t # 4 m o d e c o n t r o l # 4 + 5 v g r o u n d t p 1 o u t p u t # 1 t p 2 o u t p u t # 2 n / c t p 3 o u t p u t # 3 t p 4 o u t p u t # 4 n / c + 1 2 v d d f 3 3 1 1 / 4 3 1 1 x x x x t o p v i e w 1 5 0 m a x 0 6 7 0 . 0 5 0
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