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page 1 of 1 e???e?t1??? CX6121 silicon core microelectronics oa??l??a corp. CX6121 ????oa????3?e?? l??3?a?2? cmos 1R????? ??a ? 32 ??? , ???eey?????? CX6121 ? ae???a sop-20 ? ?a??o ? ??1 cmos 1R???? ? ?1|??1? v dd =2.0 ?? 5.5v ? ? 1y sel ????1?????3? 64+6 ????a? ? ??a?????? |? : ? ???a???? ? o???? ? e????e3? ? a??? ? ???? ? vcd ? dvd 2?? 1????e : CX6121 ki0 ki1 ki2 ki3 rem v dd sel osci osco vss kio7 kio6 kio5 kio4 kio3 kio2 kio1 kio0 lmp ccs 1 2 3 4 5 6 7 20 19 18 17 16 15 14 8 9 10 13 12 11 CX6121 CX6121-001 rom ?ey?y =0 CX6121-002 ????? 2?1???? : sop-20
?2?y1?? CX6121 page 2 of 2 ?2??? ??? ? ?a ????a ?l? o?????a a?2?a ???? / ?3??a ?3? ???? ?a 1 2 3 4 12 13 14 15 16 17 18 19 20 11 5 7 10 6 8 9 osc1 osc0 vdd vss sel rem lmp css ki/o0 ki/o1 k10 k13 k12 k11 ki/o7 ki/o6 ki/o5 ki/o4 ki/o3 ki/o2 ???t2?y ?3y??e???? tamb=25 ??? 2?y ?o? 2?y?? ??? ??????1 v dd 6.0 v ????1 v in -0.3v ?? v dd v 1|o? p d 250 mw ???a? tstg -40 ?? +125 ?? 1?a? topr -20 ?? +75 ?? ???1??t ?3y??e???? tamb=25 ??? 2?y ?o? ?e?? ?e? ??? ??? ????1 v dd 2.0 3.0 3.3 v ????a fosc 400 455 500 khz ????1 v in 0 -- v dd v ??a??????-? r up -- 100 -- k |? ???2?y ?3y??e???? tamb=25 ??? v dd =3.0v ? 2?y ?o? 2a???t ?e?? ?e? ??? ??? ????1 v dd 2.0 3.0 5.5 v 1|? i cc1 fosc=455khz 0.1 1.0 ma ?2?? i cc2 ?? 1 | a rem ??????3?? i oh1 vo=1.5v -5.0 -0.8 ma rem ?????3?? i ol1 vo=0.3v 15 30 | a lmp ??????3?? i oh2 vo=2.7v -15 -30 | a lmp ?????3?? i ol2 vo=0.3v 1 1.5 ma
?2?y1?? CX6121 page 3 of 3 2?y ?o? 2a???t ?e?? ?e? ??? ??? ki ???????? i ih1 v in =3.0v 5 30 | a ki ??????? i il1 v in =0v -0.2 | a ki ?????????1 v ih1 0.7 v dd v dd v ki ????????1 v il1 0 0.3 v dd v ki/o ?????????1 v ih2 0.7 v dd v dd v ki/o ????????1 v il2 0 0.4 v ki/o ???????? i ih2 v in =3.0v 2 7 | a ki/o ??????? i il2 v in =0v -0.2 | a ki/o ??????3?? i oh3 vo=2.5v 0.5 1.5 ma ki/o ?????3?? i ol3 vo=1.7v 1.5 2.5 ma ccs ????????1 v ih3 1.1 v ccs ???????? i ih3 ?- v in =3.0v 0.2 | a ccs ??????? i il3 ?a- v in =0v -3 -15 | a ccs ??????3?? i ih4 5 30 | a ccs ??????? i il4 -0.2 | a 1???? 1??o? ?o? ?? / ?3? 1|??? 1 ?? 4 k10 ?? k13 i ??????? 5 rem o y?y?3?1??????3?? ? 6 vdd -- ???y??? 7 sel i ????1??? 8 osco o ????1????3?? 9 osci i ????1?????? ? 10 v ss -- ???o??? 11 lmp -- ?3? led ???? 19 ?? 12 ki/o0 ?? ki/o7 i/o ???? / ?3?1??? 22 ccs i ??????? 1|??? 1. a??? CX6121 ?l?????a?o?e???y?a?? 16 ?????a?o 8 ????y?ya???y?ya?? a?2??????a???3???a???a???11? c0 c7 c3 c6 c5 c4 c2 c1 c0' c0 c0' c1 c0' c2 c0' c3 c0' c5 c0' c4 c0' c6 c0' c7 d0 d6 d5 d4 d3 d2 d0 d7 d6 d5 d1 d4 d3 d2 d1 d7 y?a? ? 8 ????a? ?? 8 ????a? 8 ???y?ya? 8 ???y?ya??a? y?a???? 9ms ???22e?o 4.5ms ?1?????113???a??ol??a??y???a?? ????3??|?113?o???ee?|a??????2a????????????????e1? ??a?2?a?3??????????? ppm ? ????a?3???????????????? 0 ?o? 1 ? ???? 8 ?? ?a???????????a?2???????????3??a?a?
?2?y1?? CX6121 page 4 of 4 2. ??????? CX6121 ?????????2????a?? 1 5 2 6 3 7 4 8 9 13 10 14 17 18 11 15 19 20 12 16 21 25 30 22 26 29 23 27 32 24 28 31 k10 k13 k12 k11 ki/o0 ki/o7 ki/o6 ki/o5 ki/o4 ki/o3 ki/o2 ki/o1 3. ??? CX6121 ??????? k10 ?? k13 o???e?o?????3??? ki/o0 ?? ki/o7 113? 4*8 ?????12??? 32 ???? ??e? 21# ??????? ki/o5 ?????? 22# ? 23# ? 24# ?o?2?????????1|????? e?ae??o?2????ee?????2? 1 ? 21# ?? 22# ?? 2 ? 21# ?? 23# ?? 3 ? 21# ?? 24# ? ?????????????o?? v ss ??????e?a-???e3?1y????????3y?????? ?o?o 21# ? 22# ?? 21# ? 23# ?? 21# ? 24# ????a?a??l??3????1? ??????a???????e? 36ms ???l??3e??a?-?o???????a??l? ??????a???????????3???????a?? ??????a??????a?o?y?ya?? 36ms o????3???? rem ?????3??? ????e3?1y 36ms ?2???3????a??3?1y 108ms o?2???3???t??a?? 4. ??????a? ?????1|?????a???a???1|?oe?? ?a??3??y??????????|??y?ya?? ???2??????????? key d0 d1 d2 d3 d4 d5 d6 d7 k21+k22 1 0 1 0 1 1 0 0/1 k21+k23 0 1 1 0 1 1 0 0/1 k21+k24 1 1 1 0 1 1 0 0/1 o sel ? v ss ??? d7=1 ? sel ? v dd ??? d7=0 ? ee2 k21 k22to24 21# ?a?l? d5+22# ?? 24# ?a?l? ?a t>126ms ?a
?2?y1?? CX6121 page 5 of 5 ?te2 k21 k22to24 21# ?a?l? 2?l? 36ms126ms 2?l? 5. ???3?2e? CX6121 ??3?2e???a???o 58.5 ? 76.5ms 108ms 108ms 1 2 3 ?? 36ms ??a fosc=455khz 9ms 4.5ms 13.5ms y?a? ? 8 ?? ??a? ?? 8 ?? ??a? ?y?ya? ?y?ya? ?a? 18ms ? 36ms 27ms 58.5ms ? 76.5ms 1 9ms 13.5ms 4.5ms 1.125ms 0.56ms 2.25ms 01 100 1 2
?2?y1?? CX6121 page 6 of 6 9ms 11.25ms 2.25ms 0.56ms 3 ??2 8.77us 26.3us ??2?a --fc=fosc/12=38khz 9ms ? 0.56ms ????? ?y?ya? ? o? k10 k11 k12 k13 ki/o d0 d1 d2 d3 d4 d5 d6 d7 k1 ? 0 0 0 0 0 0 0 0/1 k2 ? 1 0 0 0 0 0 0 0/1 k3 ? 0 1 0 0 0 0 0 0/1 k4 ? ki/o0 1 1 0 0 0 0 0 0/1 k5 ? 0 0 1 0 0 0 0 0/1 k6 ? 1 0 1 0 0 0 0 0/1 k7 ? 0 1 1 0 0 0 0 0/1 k8 ? ki/o1 1 1 1 0 0 0 0 0/1 k9 ? 0 0 0 1 0 0 0 0/1 k10 ? 1 0 0 1 0 0 0 0/1 k11 ? 0 1 0 1 0 0 0 0/1 k12 ? ki/o2 1 1 0 1 0 0 0 0/1 k13 ? 0 0 1 1 0 0 0 0/1 k14 ? 1 0 1 1 0 0 0 0/1 k15 ? 0 1 1 1 0 0 0 0/1 k16 ? ki/o3 1 1 1 1 0 0 0 0/1 k17 ? 0 0 0 0 1 0 0 0/1 k18 ? 1 0 0 0 1 0 0 0/1 k19 ? 0 1 0 0 1 0 0 0/1 k20 ? ki/o4 1 1 0 0 1 0 0 0/1 k21 ? 0 0 1 0 1 0 0 0/1 k22 ? 1 0 1 0 1 0 0 0/1 k23 ? 0 1 1 0 1 0 0 0/1 k24 ? ki/o5 1 1 1 0 1 0 0 0/1 CX6121 ??y?ya?
?2?y1?? CX6121 page 7 of 7 ????? ?y?ya? ? o? k10 k11 k12 k13 ki/o d0 d1 d2 d3 d4 d5 d6 d7 k25 ? 0 0 0 1 1 0 0 0/1 26 ? 1 0 0 1 1 0 0 0/1 k27 ? 0 1 0 1 1 0 0 0/1 k28 ? ki/o6 1 1 0 1 1 0 0 0/1 k29 ? 0 0 1 1 1 0 0 0/1 k30 ? 1 0 1 1 1 0 0 0/1 k31 ? 0 1 1 1 1 0 0 0/1 k32 ? ki/o7 1 1 1 1 1 0 0 0/1 o sel ? v ss ??? d7=1 ? sel ? v dd ??? d7=0 ? |??y CX6121 9 20 13 7 12 10 6 14 15 16 17 18 19 4 3 2 1 8 5 11 osci osco vdd lmp rem sel vss ccs ki/o7 ki/o6 ki/o5 ki/o4 ki/o3 ki/o2 ki/o1 ki/o0 ki7 ki5 ki4 ki3 ki2 455khz 200pf 200pf oal?1 vdd vdd 470 |? led 270 |? 1 |? 47uf vdd 100k |? 100k |? 100k |? 100k |? 100k |? 100k |? 100k |? 100k |? a??? a????? vdd 47uf 0.1uf in4148 in4148 in4148 in4148 in4148 in4148 in4148 in4148 o 1. ????? 2 ???y?e????????a? 2. ?a 2 ???y???o???????????
?2?y1?? CX6121 page 8 of 8 e???? 3??o 1.12 x 0.89 mm 2 pcb 2????a? ????e?? ic ????a?2???? ???2???vaa??o ? va?????????a?2?y??? ic ? ???????|?a?????????1y3 ? ?oal?2?????o ic ???|??a????????????? ? y??1l???a??? 1 |?? ? ?y??11? 9014 l?1?3???? ??l?31|1???o ic ?????a????????
?2?y1?? CX6121 page 9 of 9 a?ae?? sop-20-375-1.27 ???oo? o ????1?2?????e?ea???2?ee?a?

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