1 0/ 98 a n m c e c o m p a n y t r i a ngl e c o r po r a tio n ke y : inches[millimeters] .xx .03 .xxx .010 [.x 0.8 .xx 0.25] 60 south jefferson road, whippan y , nj 07981 t el: 973-887-8100 ?fax: 973-884-0445 e-mail: kdisales@aol.com see us on the web @ ww w .kditriangle.com a ttenu a tors, pin diode series df & ff ?hase-free 0.25?8 ghz general inform a tion: kdi/ t r iangle s phase free pin diode atte n uators change the amplitude of a micr o w a v e signal with matched (l o w ) vswr o v er the full atte n uation rang e , and with mini m um phase shift chang e . the units are supplied with either an analog or with a digital control input, with a dynamic atte n uation r ange of 32 db minimum . standard digital units are supplied with 8 ttl logic inputs (bits) and there f ore can produce 256 discrete v alues of atten- uation . units with 10 or 12 bits can be pr o vided as special s . general specific a tions: frequen c y ran g e: 0.25 to 18.0 ghz rf impedance: 50 ohms d .c . v olt a g e: 15 v olts at 50 ma logic : (d f series) ttl compati b le no . of bits: 8 l. s . b . = 0.125 d b . attentuation: 31.875 db cont r ol ran g e : (f f series) 0-10 v olts produces 0-32 d b . other control v oltages can be pr o vided on request. cont r ol input impedance 10 k ohm s , 20 pf accura c y/frequen c y flatnes s f or oct a v e model s , the frequency sensi- tivity including digital settability is typically 0.8 db to 20 db ; 1.25 db to 32 db o v er the frequency r ang e . narr o w band units are propo r tionally more accu r at e . rf p o wer: 100 mw cw 60 w atts peak ope r ational. units will not be damaged b y application of 1 w att cw 100 w atts peak. t emperature in f ormation: oper ating temperature from -55 c to +85 c t emperature stability: a) standard : 0.3 db from + 10 c to +40 c b) 0.5 db to 20 db and 0.75 db to 32 db can be pr o vided from -54 c to +85 c . if this stability is desired, add a suffi x tt to model numbe r . f or e xampl e , if the df-74 is desired with temperature compensation, it is ordered as df-74-t t . connecto r s: sma standard . a mating multipin connector can be supplied with each unit upon request. itt cannon mdb-1-15ssl or equiv i lent. swit c hing speed: response time of all models is 10 microsec . f aster models (to 150 nanosec.) can be quoted on request. linearization: a n y of the model s ?f can be supplied with a linea r i z er b y adding a prefix 2 . f or e xampl e , if the ff-47 is desired with a linea r i z e r , it is ordered as a 2-ff-47 . the o v e r all accu r acy including linearity and frequency sensitivity is then 0.75 db to 20 db and 1.25 db to 32 d b . p o wer logic pin connections . 1 0 [ 2 , 5 ] e d b a/2 . 3 8 [ 9 , 7 ] t yp . 3 2 [ 8 , 2 ] t yp f r f p o w e r / l o g i c c a . 2 0 [ 5 , 0 ] r f pin #1 ref . 5 6 [ 1 4 , 2 ] i t t cannon m db1-15psp o r equiv. . 1 2 5 / [ 3 , 2 0 ] dia thru 3 m t g holes d i g i t a l m o d e l s ( d f s e r i e s ) notes: 1 . ha r monic disto r tion : appr o ximately ?0 dbc f or pin 0 dbm at a frequen- cy of 1.0 ghz f or most unit s . this v alue impr o v es b y appr o ximately 10 db per oct a v e as the frequency increases ; h o w e v e r , since this v alue is depen- dent on bandwidth of the unit, p o wer input, and s witching speed required, the f acto r y should be consulted if ha r monic content is an impo r tant system requirement. 2 . the phase shift o v er the center half of the frequency r ange is 1/2 of the v alue listed, e .g. : the phase shift of the ff-47 is 5 from 2.5 to 3.5 ghz (0?0 db) . see fig . 2 3 . other configu r ations (up to 12 bits) or units with dif f erent atte n uation v alues can be quoted on request. out- a b c d e f g line in[mm] in[mm] in[mm] in[mm] in[mm] in[mm] in[mm] 1 4.00[101,6] 4.00[10,1] 3.600[91,4] 3.375[85,72] 0.38[9,65] 0.39[9,90 ] 0.32[8,12] 2 3.00[76,2] 2.00[50,8] 2.600[66,04] 1.375[34,92] 0.35[8,9] 0.25[6,4] 0.32[8,12] 3 4.00[101,6] 2.00[50,8] 3.600[91,4] 3.375[85,72] 0.45[11,4] 0.25[6,4] 0.34[8,6] 4 4.50[114,3] 4.00[101,6] 4.100[104,14] 3.375[85,72] 0.31[7,87] 0.31[7,87] 5 3.50[88,9] 2.00[50,8] 3.100[78,74] 1.375[34,92] 0.40[10,2] 0.28[7,11] 6 4.50[114,3] 2.00[50,8] 4.100[104,14] 1.375[34,92] 0.45[11,4] 0.25[6,4] pin function 1-12 logic inputs 13 +15 vdc 14 -15 vdc 15 gnd
a n m c e c o m p a n y t r i a ngl e c o r po r a tio n ke y : inches[millimeters] .xx .03 .xxx .010 [.x 0.8 .xx 0.25] 60 south jefferson road, whippan y , nj 07981 t el: 973-887-8100 ?fax: 973-884-0445 e-mail: kdisales@aol.com see us on the web @ ww w .kditriangle.com 1 0 /9 8 a ttenu a tors, pin diode series df & ff ?hase-free 0.25?8 ghz df series vswr least inser tion for all maximum phase analog digital fr equency significant atten. loss v alues of shift model model* range df ff bit db range maximum atten. deg. no. no. ghz outline outline note 3 maximum db db maximum 0?0 db 20?2 db DF-18 ff-18 0.25?.5 4 1 .125 32 4.5 1.5 10 15 df-32 ff-32 0.95?.25 4 1 .125 32 3.0 1.5 5 7.5 df-36 ff-36 1.0?.0 6 3 .125 32 4.0 1.5 10 15 df-45 ff-45 1.7?.4 6 3 .125 32 3.5 1.5 6 10 df-47 ff-47 2.0?.0 6 3 .125 32 3.0 1.5 10 15 df-62 ff-62 4.0?.0 5 2 .125 32 3.75 1.75 12 15 df-73 ff-73 7.0?2.4 5 2 .125 32 4.25 1.8 12 15 df-74 ff-74 8.0?8.0 5 2 .125 32 5.5 2.2 15 20 specific a tions c a sma f emale t y p . b d a/2 0 . 3 8 [ 09 , 7 ] ty p . f n o t e : e i t h e r r f c o n n e c t o r m a y b e u s e d f o r i n p u t e 0 . 2 0 [ 5 , 1 ] 0 . 1 2 5 [ 3 , 1 8 ] di a t hru 3 m t g . holes 0 . 1 0 [ 2 , 5 ] . 5 6 [ 1 4 , 2 2 ] g g n d - 15 v +15 v c o n - t r o l r f a n al o g m o d e l s ( f f s e r i e s ) 0 2 5 8 1 0 0 5 1 0 1 5 2 0 3 0 3 2 2 5 c o n t r o l v o l t a g e ( v ) a t t e n u a t i o n ( d b ) n o n l i n e a r i z e d l i n e a r i z e d b e s t f i t s t r a i g h t l i n e t y p i c a l c u r v e o f a t t e n u a t i o n v s c o n t r o l v o l t a g e f i g . 1 0 . 5 d b t y p i c a l c u r v e o f f f - 1 8 o r d f - 1 8 a t m a x . a t t e n u a t i o n ( 3 2 d b ) t y p i c a l c u r v e o f f f - 4 5 o r d f - 4 5 a t m a x . a t t e n u a t i o n ( 3 2 d b ) t y p i c a l c u r v e o f f f - 1 8 o r d f - 1 8 a t 2 0 d b a t t e n u a t i o n t y p i c a l c u r v e o f f f - 4 5 o r d f - 4 5 a t 2 0 d b a t t e n u a t i o n r e f . p h a s e a t z e r o a t t e n u a t i o n f o r f f - 1 8 o r d f - 1 8 a n d f f - 4 5 o r d f - 4 5 - 1 5 - 1 2 - 9 - 6 - 3 0 + 3 + 6 + 9 + 1 2 + 1 5 f m i n f 0 f m a x f r e q u e n c y p h a s e s h i f t v s f r e q u e n c y a t v a r i o u s a t t e n u a t i o n l e v e l s t r a n s m i s s i o n p h a s e ( d e g r e e s ) * add prefi x ? f or linea r ization add suffi x ?t f o r t emp comp ; -55 to +85 8 c
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