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| ?a??????a CD7666GP ???????y??a 1. ?????? CD7666GP ??? 5db 5db 3db 3db ???? 5 ? 2 ???????y??a ??????a ?e??? ?o?r?????3 ????1??? v cc = 6 ~ 12v ?2??e? i ccq = 4m a ? v cc =9v ??a2????????????? ae?? dip16 2. 1|????y???? 2.1 1|??? 2.2 y???? y?? ? o? 1| ? y?? ? o? 1| ? 1 i n 1 ? 1 ?? 9 v cc ?? 2 o u t 1a ? 1 ?? ?? 3? 1 0 o u t 21 ? 2 ?3? 1 3 o u t 15 ? 1 ?3? 5 1 1 o u t 22 ? 2 ?3? 2 4 o u t 14 ? 1 ?3? 4 1 2 o u t 23 ? 2 ?3? 3 5 o u t 13 ? 1 ?3? 3 1 3 o u t 24 ? 2 ?3? 4 6 o u t 12 ? 1 ?3? 2 1 4 o u t 25 ? 2 ?3? 5 7 o u t 11 ? 1 ?3? 1 1 5 o u t 2a ? 2 ?? ?? 3? 8 g n d ? 1 6 i n 2 ? 2 ?? ?t?y?a???1ye?t1??? ?? ?-????t?yeo?aa 14 o? ?? 0510 5807123-5542 ??? 0510 5803016 ? 1 3 12 3 3 + _ a1 + _ c5 c4 c3 c2 c1 + _ c5 + _ c4 + _ c3 + _ c2 + _ c1 ?? ??1 + _ a2 15 14 13 12 11 10 3 4 5 6 7 2 1 8 9 16 + _ + _ + _ + _ vcc vcc
?a??????a CD7666GP 3. ??e? 3.1 ???t2?y 3y?e1?? t am b = 25 2? y ?? 3? ? o? ?? ? ? ? ?? ????1 v cc 1 4 v ?3?? i o 3 0 m a led ?y?????1 v led 1 5 v 1|o? p d 7 5 0 m w 1??3?a? t am b -30 ~ 75 ???a? t stg -55 ~ 150 25 ?? ?a???y?? 1 ???1|o??? 6 m w 3.2 ??e? 3y?e1?? t am b = 25 v cc =9v f=1khz 1? ? ? 2? y ?? 3? ? o? 2a ? ? ?t ?e? ?e ?? ? ?? ?2?? i ccq v i = 0 4 6 m a ?3?? i o v ce = 2 v 1 5 2 0 3 0 m a ?3?a?? i ole v i = 0 5 0 u a ??1??? a v 1 2 . 6 d b ?? 1 ???????12? v ila a v = 1 2 . 6 d b - 1 0 . 2 5 0 1 0 . 2 5 m v v ila(5) 1 8 9 2 1 2 2 3 8 m v v ila(4) 1 3 4 1 5 0 1 6 8 m v v ila(3) 8 9 1 0 6 1 2 6 m v v ila(2) 4 7 6 0 7 5 m v ?????????1 v ila(1) a v =12.6db 2 4 3 4 4 7 m v 4. 2a???a ? 2 3 12 3 3 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 CD7666GP led (15) led (14) led (13) led (12) led (11) led led led led led vin sw1 600 10k 43k 0.47uf 430 430 430 430 430 430 430 430 430 430 10k 43k sw2 600 0.47uf 4.7uf 4.7uf 1 2 1 2 vcc=9v (25) (24) (23) (22) (21) ?a??????a CD7666GP 5. |???a 6. ae?3?? 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 CD7666GP 10k 43k 0.47uf 10k 43k 0.47uf 4.7uf 4.7uf vcc -13db -8db -3db 0db 3db -13db -8db -3db 0db 3db rl rl rl rl rl rl rl rl rl rl led led led led led (25) (24) (23) (22) (21) led (15) led (14) led (13) led (12) led (11) ? 3 3 12 3 3 |
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