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| CD9251 ?? 1.0 2003-10-08 1 ? 4 ? CD9251 ? dts ?????????????? sw fm ????? CD9251 cpu ??? ???? ? ? hi - fi ???? ??? fm ?????? 20 150mhz 1/4 ????? sw ?? ??? 0.4 40mhz ?????? ? fm ? 70mv sw ? 50mv a?? 3v ?? sop8 ?? 1 2 3 45 6 7 8 vcc fmin swin gnd out sw/fm psc outb ?? 1 vcc ps ? 2 fmin ap fm ?? 3 swin ap sw ?? 4 gnd ps ? 5 out oi ?? 6 sw/fm isc sw/fm ? ??? sw ??? ??? fm 1/4 ?? 7 psc isc ??? ??? 16 ? ??? 15 ? 8 outb oi out/32 ? isc cmos schmitt oi cmos ap ? ps ? winning 1??ye???????e?t1??? ??o1??yeo???|????eea???1306 telo020-34383476 faxo020-34387339 emailogzwinning@163.com http://www.gzwinning.com free datasheet http:///
CD9251 2 ? 4 ? ?? amp 1/4 ? 1/15,16 ? 1/16 12 34 5 6 7 8 outb psc sw/fm out vcc fmin swin gnd 3v psc 0.047|f 0.0047|f 0.001|f 0.1|f ? CD9251 ?? fm sw ???????? CD9251 ????????? 1 ? CD9251 ????? a fm ? fm ???? 20 150mhz ?? 70mv ? ??????? ? fm ?? 0.001 f ?? b sw ? ? fm ??????????? ?????? sw ???? 0.4m 40mhz ? 50mv ???? 2 ?? ????? 15 ? 16 ?? CD9251 psc ???? fm ?? fm ????? 4 ? 15/16 ?? psc ? ? 15 16 ? out ??????? outb ?? outb out ?? 16 ????? mcu ? winning 1??ye???????e?t1??? ??o1??yeo???|????eea???1306 telo020-34383476 faxo020-34387339 emailogzwinning@163.com http://www.gzwinning.com free datasheet http:/// CD9251 3 ? 4 ? ? ? - 0.5 6 v ? v ss - 0.3 v dd +0.3 v latch up 10 - ma - 3 ma ? - 65 125 ? - 10 70 ?? ta = 25 v dd1 = 3v v dd2 = 5v v ss = 0v ? ? ? ? ? v dd - v ss 2 3 6 v v dd - v ss 4 8 ma ?? fm ? 20 150 mhz vin = 70mv ?? am ? 0.4 40 mhz vin = 50mv ? fmin 70 300 mv ? swin 50 300 mv ?? out 0.2 0.5 v io = 1ma ?? out v dd - 0.5 v dd - 0.2 v io = 1ma ?? psc sw/fm 0.8v dd v ?? psc sw/fm 0.2v dd v ? psc sw/fm 1 a ? psc sw/fm - 1 a ? fm ??? 150mhz 70mv ??? 10nf ?? 1 2 3 45 6 7 8 fm/sw? 50|? 0.001|f 0.0047|f 0.1|f +3v vdd ?1 ?2 vil vih CD9251 winning 1??ye???????e?t1??? ??o1??yeo???|????eea???1306 telo020-34383476 faxo020-34387339 emailogzwinning@163.com http://www.gzwinning.com free datasheet http:/// CD9251 4 ? 4 ? ??? 1 2 34 5 6 7 8 9 vcc vcc fmin swin gnd out sw/fm psc outb ??? v ss winning 1??ye???????e?t1??? ??o1??yeo???|????eea???1306 telo020-34383476 faxo020-34387339 emailogzwinning@163.com http://www.gzwinning.com free datasheet http:/// |
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