?a??????a CD7325GS ?????????a 1. ?????? CD7325GS ?3??o??r???e????????? ??????a ??1????? a vo=100db ??? vni=1.0uv ??e?2??1|? 1|??1??? vcc=7 ~ 18v ae?? sip9 2. 1|????y???? 2. 1 1|??? 2. 2 y???? y?? ? o? 1| ? y?? ? o? 1| ? 1 i n 1+ ? 1 ???? 6 o u t 2 ?3? 2 2 i n 1- ? 1 ??? 7 i n 2- ? 2 ??? 3 o u t 1 ?3? 1 8 i n 2+ ? 2 ???? 4 v cc ?? 9 c o n mut ?2?????? 5 g n d ? ?t?y?a???1ye?t1??? ?? ?-????t?yeo?aa 14 o? ?? 0510 5807123-5542 ??? 0510 5803016 ? 1 3 12 6 3 ??? 1 ??? 2 ?2?? ++ -- 1 2 3 4 6 5 7 8 9
?a??????a CD7325GS 3. ??e? 3. 1 ???t2?y 3y?e1?? t am b = 25 2? y ?? 3? ? o? ?? ? ? ? ?? ????1 v cc 1 8 v 1?a???1 v s 3 0 v 1|o? p d 7 0 0 m w 1??3?a? t am b -25 ~ 75 ???a? t stg -55 ~ 150 25 ?? ?a???y?? 1 ???1|o??? 5.6 m w 3. 2 ??e? 3y?e1?? t am b = 25 v cc =10v f=1khz rg=600 1? ? ? 2? y ?? 3? ? o? 2a ? ? ?t ?e? ?e ?? ??? ?2?? i ccq 5 . 5 8 . 5 m a ???3???1 v om t h d = 0 . 5 % 2 . 0 2 . 8 v ??????1 v ni r g =2.2kbpf: 15hz~30hz 1 . 0 2 . 5 u v ?a???1??? a vo cf=100uf rf=0 1 0 0 d b ???1 r i v o = 1 v 1 0 0 k ????? ct f=10khz r g =2.2k v o =1v 7 0 d b ??2??? s rip f=100hz v i =1v 5 0 d b ?2????? mr v 9 =1v ? v o =1v ?a 0db 8 0 d b 4. 2a???a ? 2 3 12 6 3 ?3? ?3? r =10k r =10k ?? s1 s2 s3 s4 2.2k 2.2k 50pf 50pf 4.7 f 4.7 f 4.7 f 4.7 f 0.01 f 0.01 f 330k 330k 12k 12k 180 180 22 22 100 f vcc=10v f f l l + + + + + + cf cf rf rf 1 2 3 4 5 6 7 8 9 CD7325GS +
?a??????a CD7325GS 5. ?e???? ? 3 3 12 6 3 4 8 12 16 20 0 200 400 600 800 ????1 vcc (v) ??? r (k ) nf 4 8 12 16 20 0 4 8 12 16 ????1 vcc (v) ??? icc (ma) 0 40 80 120 160160 ?a???1??? avo (db) ???3???1 v (v) om 0 4 8 12 16 icc,avo,v ? vcc om r ? vcc nf avo icc v om 20 50 100 300 500 1k 3k 5k 10k 30k 50k 0 40 80 120 160 ?a f hz ??1??? av avo db av avo ? f vo ? vi ????1 vi mv ?3???1 vo v 0.1 11 0 100 0.05 0.1 0.3 0.5 1 3 6 cf=330 f 100 f 22 f nab riaa avo vcc=10v r =10k l f=100hz 1khz 10khz vcc=10v r =10k l nba ?oa 100 1k 10k 100k 0.3 1 3 5 10 30 vcc=10v nba ?oa av=40db e?o??? rg ( ) ??????1 vni ( v) vni ? rg -40 -20 0 2 0 40 60 80 0 4 8 12 16 avo icc vcc=10v ??3?a? tamb ( ) ??? icc (ma) ?a???1??? avo (db) 0 40 80 120 160
?a??????a CD7325GS 0.1 0.3 0.5 1 3 5 1 0 0.1 0.3 0.5 13 5 0.01 0.03 0.05 0.1 0.3 0.5 1 3 0.5 0.3 0.1 0.002 0.005 0.01 0.03 0.05 ?3???1 vo (mv) ?3???1 vo (mv) ?e32??? thd (%) ?e32??? thd (%) thd ? vo thd ? vo f=100hz 10khz 1khz vcc=10v nba ?oa gv=40db r =10k f=20hz 1khz 20khz20khz vcc=10v rlaa ?oa r =47k l l 0.1 0.3 13 1 0 0 10 20 30 40 50 ??2????? vis (v) ??2??? srip (db) srip ? vis vcc=9v 10v 12v nab ?oa v =0v i 1 0 ? 4 3 12 6 3
?a??????a CD7325GS 6. |???a?|??? 6. 1 |???a 1 6. 2 |???a 2 ? 5 3 12 6 3 ?3? 1 ?3? 2 r =47k r =47k ?? 1 120pf 120pf 4.7 f 4.7 f 4.7 f 4.7 f 0.01 f 0.01 f 34k 34k 310k 310k 680 680 100 100 100 f vcc=10v f f l l + + + + + + cf rf 1 2 3 4 5 6 7 8 9 CD7325GS 2200pf 2.2k 5pf 5pf 2.2k 2200pf ?? 2 ?3? 1 ?3? 2 r =10k r =10k ?? 1 50pf 50pf 4.7 f 4.7 f 4.7 f 4.7 f 0.01 f 0.01 f 330k 330k 12k 12k 180 180 22 22 100 f vcc=13.2v f f l l + + + + + + cf cf rf rf 1 2 3 4 5 6 7 8 9 CD7325GS + 470 ?? 2
?a??????a CD7325GS 7. ae?3?? ? 6 3 12 6 3
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