?a??????a CD8227GP ?????1|a???a ?t?y?a?a???e?t1??? ?? ?-????t?yeo?aa 14 o? ?? 0510 - 5807123 - 55 06 ??? 0510 - 5807123 - 3093 214061 ?? http://www. crhj.com.cn ? apply@crhj.com.cn ? 1 3 12 6 3 1. ?????? CD8227GP ????????1|??a ?o?1y??ao???a1? a??a?? ??a ?a??e????ooe?a??? ??????a ?2??e? i cc = 21ma v cc = 9v ??1????? a v = 56.5db 1???? f=1khz ?3?1|a? p o =3.0w/ch v cc = 9v r l = 3 f = 1khz thd = 10% y??a1? ?? ?o???a 1|????1??? v cc = 5 12v t amb = 25 ?a?? ? e? ae?? h dip12 2. 1|????y???? 2. 1 1|??? - + - + 45 |? 30k |? 30k |? 45 |? ch-1 ch-2 fin ?????????a 1 2 3 4 5 6 7 8 9 10 11 12
?a??????a cd 8227gp ?t?y?a?a???e?t1??? ? 2 3 12 6 3 2. 2 y???? y?? ? o? 1| ? y?? ? o? 1| ? 1 v cc ?? 7 in 2 ?y??? 2 out 1 1|??3? 8 nf 2 ??? 3 b.s. 1 ?? 9 ripple ??2 4 gnd ? 10 b.s. 2 ?? 5 nf 1 ??? 11 out 2 1|??3? 6 in 1 ?y??? 12 v cc ?? 3. ??e? 3. 1 ???t2?y 3y?e1?? t amb = 25 2? y ?? 3? ? o? ?? ? ? ? ?? ????1 vcc 20 v ?3?? peak ch i o (peak) 2.5 a 1|o? p d 4.0 w 1??3?a? t opr - 25 75 ??a? t stg - 55 150 ??a tj 150 3. 2 ??e? 3y?e1?? t amb = 25 v cc = 9v f = 1khz ,r l = 4 ,r g = 600 1? ? ? 2? y ?? 3? ? o? 2a ? ? ?t ?e? ?e ?? ? ?? ?2?? i c cq v in = 0 v 21 45 ma ?3?1|a po thd =10% 2.0 2.5 w thd =10% r l =3 3.0 ??? thd p o = 0.4w ch 0.2 1.0 % ??1??? a v (1) r f =120 vo =0dbm 43 45 47 db a v (2) r f =0 , vo=0dbm 56.5 ???1 r in 30 k ?3? ????1 v no r g =10k , bw=20hz 20 k hz 0.3 1.0 mv rms ??2??? r .r r g = 600 f = 100hz 52 db ??? c .t r g =600 v o = 0dbm 50 db ?|??1 v 6 v 7 30 60 mv y?? i stb sw 1 off 1 ua
?a??????a cd 8227gp ?t?y?a?a???e?t1??? ? 3 3 12 6 3 4. 2a???a 5. ?e???? fin 1 2 3 4 5 6 7 8 9 10 11 12 sw1 c10 47 | f rf2 47 | f 47 | f (*2) cin (*1) cin 100 | f (*1) cin c1 c3 c1 rf1 120 |? 120 |? 100 | f 0.15 | f 1000 | f c5 c7 c9 c6 c8 c4 0.15 | f 1000 | f 100 | f 1000 | f rl rl CD8227GP 0 2 4 6 8 10 12 14 0 2 4 6 8 10 12 0 2 4 6 8 10 12 vcc =12v vin=0 ta=25 ?? v , v icc 2 10 ????1 vcc (v) ?2?? icc (ma) icc ? v ? v - vcc ?3???1 v ? v ? v ? 1 2 2 2 10 2 2 10 2 0.01 0.1 0.3 1 3 10 0.1 0.3 1 3 10 30 100 f=1khz rl=4 |? r =120 |? nf ?3?1|a pout (w) ?e32?? thd ? % ? thd - pout vcc1=9v ta=25 ?? vcc2=5v 6v 7v 8v 9v - 40 - 20 0 20 40 60 80 100 0 0.1 0.2 0.3 0.4 0.5 vcc=9v rl=4 |? pout=0.4w f=1khz ??3?a? ta ( ?? ) thd -- ta ?e32?? thd (%) - 40 - 20 0 20 40 60 80 0 10 20 30 40 50 ??3?a? ta ( ?? ) icc ? v ? v ? - ta ?2?? icc (ma) ?3???1 v ? v ? v ? 2 10 2 10 0 2 4 6 8 v cc=9v rl=4 |? vin=0
?a??????a cd 8227gp ?t?y?a?a???e?t1??? ? 4 3 12 6 3 0 5 10 15 20 0 20 40 60 80 ????1 vcc (v) ?2?? icc (ma) icc ? vout - vcc ?3???1 vout (v) vin=0 0 1 2 3 4 5 6 7 0 1 2 3 4 5 vcc=12v f=1khz ?3?1|a pout (w) 1|o? p ? w ? d p - pout d rl=8 |? rl=6 |? 0.01 0.1 0.3 1 3 10 0.1 0.3 1 3 10 30 100 f=1khz rl=4 |? r =120 |? nf ?3?1|a pout (w) ?e32?? thd ? % ? thd - pout thd - pout ?e32?? thd ? % ? ?3?1|a pout (w) 0.01 0.1 0.3 1 3 10 30 0.1 0.3 1 3 10 30 100 vcc=9v rl=4 |? r =120 |? nf f=10khz 1khz 100hz 10 100 1k 10k 100k r.r. - f ?a f(hz) ??2??? r.r. (db) - 80 - 60 - 40 - 20 0 vcc=9v rl=4 |? rg=600 |? r =120 |? nf 10 100 1k 10k 100k 0 20 40 60 80 gv - f ?a f(hz) ??1??? gv (db) vcc=9v rl=4 |? r =120 |? nf
?a??????a cd 8227gp ?t?y?a?a???e?t1??? ? 5 3 12 6 3 6. ??a?|??? 6. 1 |???a 6. 2 |??? 6.2.1 ? ???a ????a??a??? ?? ??a ?e t1 ???1??a???e????o??y?????a2?1? ????????2?? 60mv ??|??1 ? ??|?|??2???e???????o2? ?1? ???e????????|??e?e???????a?y 11 12 6 2 1 4 5 3 8 9 CD8227GP 10 7 22 | f 47 | f 100 | f 1000 | f 0.15 | f 1000 | f sw1 1000 | f 0.01 | f 0.01 | f 1000 | f 100 | f 47 | f 47 | f 0.22 | f 4 |? 4 |? 120 |? 120 |? 2/11 5/8 6/7 4 45 |? 30k |? 30k |? t2 t3 t1 rf c in to drive input 47 | f
?a??????a cd 8227gp ?t?y?a?a???e?t1??? ? 6 3 12 6 3 6.2.2 ???a ??????y??e?o???a?o?????e? ?????3???????????y ???y?a?? ???e??1???y????ee?a??? ??????? a ??a?y????????????o? ?? ?? ? v cc ???y?e????1|?? ??|??e ???1???2?????1ye? ??2??? 6.2. 3 ???a1? ? 1 ???e??????a1? ?3?1|a??? 1 ?????????? 6.2. 4 ????1 ???e?o?1y? 2e???2?2 ?2?? v in = 300v rms v cc = 9v r l = 4 f = 1khz |?eva???? 7. ae?3??
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