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sc9711 hangzhou?silan?microelectronics?co.,ltd rev:1.1??????2007.11.07 http : www.silan.com.cn ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?1?of?14 mcu?embedded?a/d?converter?for?dmm(3 3/4 ?digits) qfp-100-14x20-0.65 description sc9711?is?a?4000?counts?digital?multi-meter. features *?adc?display?three?times?pre?second; *?auto?range?function ????voltage(dc/ac):?400.0mv,?4.000v,?40.00v,?1000v ????current(dc/ac):?(400.0 m a,4000 m a),?(40.00ma,?400.0ma), (10.00a) resistor:??400.0 ,4.000k ,?40.00k , ?????????????????400.0k ,?4.000m ,40.00m ????diode?and?continuity?measurement: ????capacitance:???4.000nf,?40.00nf,?400.0nf, 4.000 m f,?40.00 m f,?200.0 m f(30sec) ????frequency:????9.999hz,?99.99hz,?999.9hz,?9.999khz, 99.99khz,?999.9khz,?9.999mhz ???duty:?0.1%~99.9% *?3v?battery?operation *?low?power?consumption:?less?than?6mw *?range?selection/display?hold/auto?power-off/relative *?1/3?bias,?1/4?duty?lcd?drive *??2.4v?battery?replacing?caution?detect *??built-in?ac/dc?switch?opamp *??built-in?cmos?bandgap?reference ordering?informations device package sc9711 qfp-100-14?x?20-0.65 SC9711X? die applications *?hand-held?dmm *?pocket?dmm *?pen-type?dmm *?clamp?meter block?diagram
sc9711 hangzhou?silan?microelectronics?co.,ltd rev:1.1??????2007.11.07 http : www.silan.com.cn ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?2?of?14 electrical?characteristics (t amb =25 c,?v dd =3v) characteristics symbol test?conditions min. typ. max. unit recommend?operating?voltage v dd 2.4 3.6 v supply?current i dd ? at?dcv?mode 1.5 2 ma power-off?current i po ? at?power?off 10 m a digital?input?high?voltage v ih v dd -0.5 v digital?input?low?voltage v il 0.5 v pull?up?current i pu ? vin=0 5 10 m a analog?ground?voltage agnd v dd /2-3% v dd /2?v dd /2+3% v analog?power?supply?voltage v dda 3.4 3.7 4 v build?in?reference?voltage v band relative?agnd voltage 1.1 1.25 1.4 v reference? voltage? o utput voltage?coefficient v dd =2.4~3.6 -2000 +2000 ppm/v recommend? input? r eference voltage ref1 relative?to?agnd voltage 0.44 v low?battery?detector?voltage v batt 2.25 2.4 2.55 v lcd?frame?frequency f lcd 32 hz lcd?pk-pk?driver?voltage v lcd 2.8 3 3.2 v beeper?frequency f beep 2.7 khz zero?input?reading dc?adpx1?input=0v -0.001 0.000 0.0001 linearity? (max.? deviation? f rom best?straight?line?fit) dc?adpx1?input full?scale 240.0mv -1 0 +1 counts ac? measurement? b andwidth error ac?adpx1 240mvrms 20hz~1khz 0.2 % continuity?check?value rcc 10 60 ohm adc? m easurement? ? o.l display?count 4050 counts autorange?up?counts 4000 counts autorange?down?counts 360 counts v il (?relative?agnd) -60 mv frequency? counter? input? l evel (hz/duty?control) v frea v ih (relative?agnd) 60 mv frequency? counter? max.? i nput frequency?(hz/duty?control) fmaxa v pp = 100mv?square wave?input 500k hz duty? measurement? min.? p ulse width?error?(hz/duty?control) *1 v pp = 100mv?square wave?input 1 m s v il (relative?agnd) -600 mv frequency? counter? input? l evel (meas=0100) v fred v ih (relative?agnd) 600 mv frequency?counter?input?max. frequency?(meas=0100) f maxd v pp = 600mv?square wave?input 5m hz (to?be?continued)
sc9711 hangzhou?silan?microelectronics?co.,ltd rev:1.1??????2007.11.07 http : www.silan.com.cn ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?3?of?14 (continued) characteristics symbol test?conditions min. typ. max. unit duty?measurement?min.?pulse width?error?(meas=0100) *1 v pp = 600mv?square wave?input 100 ns 4.000nf 5%+25? counts 40.00nf 2%+10? counts 400.0nf 0.5%+3? counts 4.000 m f 1%+2 counts capacitor?measurement accuracy?after?zero?input relative?400.0nf 40.00 m f 1.5%+2? counts function?and?range?table mea4 mea3 mea2 mea1 select(1(0(1) hz/duty(1(0(1) 0 0 0 1? dcv hz/duty/v 0 0 1 0? acv hz/duty/v 0 0 1 1? ohm 0 1 0 0? hz hz/duty 0 1 0 1? cap 0 1 1 0? diode/?beeper diode/?beeper?switch 0 1 1 1 m a ac/dc?switch hz/duty/a 1 0 0 0?v ac/dc?switch hz/duty/v 1 0 0 1? ohm/diode/beeper/cap 1 0 1 0?a ac/dc?switch hz/duty/a 1 0 1 1? ma ac/dc?switch hz/duty/a 1 1 0 0? diode 1 1 0 1? beeper 1 1 1 0? hfe 400mv? full? scale? input,? no decimal,?input?through?adp 1 1 1 1? temp (100/amp,? gain)(v/(c? input, no? decimal,? input? from adp2.
sc9711 hangzhou?silan?microelectronics?co.,ltd rev:1.1??????2007.11.07 http : www.silan.com.cn ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?4?of?14 pin?configuration 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 o p 2 n n . c o p 2 o a d i p n . c a d i n n . c s a s g n d a d p d t n . c s m v c r e s 1 r l r c a p 1 r c a p 2 o n e k n . c t e n k n . c h u n k n . c o n e m n . c t e n m c r e s 2 t e s t b a d p c 1 a d p c 2 select range rel hold hz/duty cap mea4 mea3 mea2 mea1 lcdc1 lcdc2 tsta gnd n.c agnd n.c v dd n.c n.c n . c v b n . c c b c a v g g n . c v d d a r l c d n . c x i n x o u t t x d n . c s e g 1 4 s e g 1 3 s e g 1 2 s e g 1 1 s e g 1 0 s e g 9 s e g 8 s e g 7 s e g 6 s e g 5 s e g 4 s e g 3 s e g 2 s e g 1 c o m 1 com2 com3 com4 entx beeper blout rst n.c refi refo fta n.c ftb ftc tstc op1n n.c op1o n.c op2p sc9711 n . c pin?descriptions pin?no. symbol description pin?no symbol description 1 op2n? ac?measure?negative?input 51 nc 2 nc 52 vb bias?current?input 3 op2o? ac?measure?positive?input 53 nc 4 ad1p? ac?measurement?positive?input 54 cb double? voltage? capacitor connection 5 nc 55 ca double? voltage? capacitor positive?connection 6 ad1n? ac?measurement?negative?input 56 vgg double?voltage?output 7 nc 57 nc 8 sa current? measurement? adc connection 58 vdda voltage?stabilization?output/ analog?power 9 sgnd analog?ground?adc?negative input 59 rlcd lcd?drive?voltage?regulate resistor 10 adp additional?adc?positive?input 60 nc 11 dt diode?measurement?resistor connection 61 xin oscillator?input?port (to?be?continued)
sc9711 hangzhou?silan?microelectronics?co.,ltd rev:1.1??????2007.11.07 http : www.silan.com.cn ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?5?of?14 (continued) pin?no. symbol description pin?no symbol description 12 nc 62 xout? oscillator?output?port 13 smv high?impedance?voltage?input/r measurement? adc? positive input/diode?resistor?connection 63 nc 14 cres1 r? measurement? filter? capacitor connection 64 txd power?control 15 rl resistor?reference?voltage?input 65 nc 16 rcap1? no?use. 66 seg14? lcd?segment?14 17 rcap2? no?use. 67 seg13? lcd?segment?13 18 onek? 1.000k w ?resistor 68 seg12? lcd?segment?12 19 nc 69 seg11? lcd?segment??11 20 tenk? 10.01k w ?resistor?connection 70 seg10? lcd?segment?10 21 nc 71 seg9? lcd?segment??9 22 hunk? 100.1k w ?resistor 72 seg8? lcd?segment??8 23 nc 73 seg7? lcd?segment?7 24 onem? 1.111m w ?resistor?connection 74 seg6? lcd?segment?6 25 nc 75 seg5? lcd?segment?5 26 tenm? 10m w ?resistor?connection 76 seg4? lcd?segment?4 27 cres2 the? capacitor? of? resistor voltage 77 seg3? lcd?segment?3 28 testb? back?light?control?pin 78 seg2? lcd?segment?2 29 adpc1? no?use. 79 seg1? lcd?segment?1 30 adpc2? no?use. 80 com1? backplane?1?of?lcd?display 31 select? measure?mode?selected 81 com2? backplane?2?of?lcd?display 32 range? auto/manual?switch?control 82 com3? backplane?3?of?lcd?display 33 rel relative?function 83 com4? backplane?4?of?lcd?display 34 hold? display?hold 84 entx? no?use 35 hz/duty? hz/duty?change 85 beeper beeper?output 36 cap no?use. 86 blout? back?light?digital?output 37 mea4? measure?mode?select?4 87 rst cpu?reset?input 38 mea3? measure?mode?select?3 88 nc 39 mea2? measure?mode?select?2 89 refi reference?voltage?input 40 mea1? measure?mode?select?1 90 refo bandgap? reference? voltage output 41 lcdc1? no?use. 91 fta adc?filter?positive?output?pin 42 lcdc2? no?use. 92 nc 43 tsta test?pin 93 ftb adc?filter?positive?input?pin 44 gnd 2 1.5v?battery?negative?input 94 ftc adc? preceding? filter? negative port 45 nc 95 tstc? test?pin (to?be?continued)
sc9711 hangzhou?silan?microelectronics?co.,ltd rev:1.1??????2007.11.07 http : www.silan.com.cn ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?6?of?14 (continued) pin?no. symbol description pin?no symbol description 46 agnd 3v?battery?midpoint,?analogy ground. 96 op1n ac? signal? buffer? operate amplifier?input?pin?(-) 47 nc 97 nc 48 v dd 2 1.5v?battery?positive?input 98 op1o ac? signal? buffer? operate amplifier?output?pin 49 nc 99 nc 50 nc 100 op2p ac/dc? switcher? opamp? input pin function?description auto/manual?switch ? range range?is?the?push-type?switcher,?and?set?in?auto?switch?at? power-on.?if?pressed?range?key,?it?switch?into manual?step.?in?manual?states,?press?it?up?jumper?one?step.?if?jumper?from?highest?step?to?lowest?step,?only?need pressed?the?key?for?2?second,?automatic?switch?into?auto?step.??hz/duty?and?cap?because?of?the?measure?mode cannot?switch?into?manual?switch?mode. display?hold ? hold hold?key?is?the?push-type?switcher,?use?for?holding?the?display?data. relatively?value?display ? rel rel?key?is?the?push-type?switcher.?besides?hz/duty,?other?measurements?have?this?function,?it?can?automatic switch?into?auto?switch?mode. auto?power-off when? measure? operating? more? than? 15? minutes,? and? didn?t? switch? the? measure? step? (that? is? didn?t? press? the push?button),??it?will?switch?into?standby?mode?automatically.?if?press?the?select?key,?auto?power?off?invalidation. back?light?control: when?pressed?the?blctr?or?range?more?than?2s,?b1out?will?be?set?to??1?,?and?if?press?blctr?again,?it?will be?cleared. beeper when? select ? rel ? hold ? range ? hz/duty? and? blctr??keys? pressed? and?function?switched?,? the? beeper on?about?0.5~1s.?when?acv>750v,? dcv>1000v,? ac/dc m a?>4000 m a,?ac/dc?ma,?ac/dc?a>10a,?the?beeper will? hold?on?to?indicator? the? warning? of? the? out? of? range.? at? one?minute? before? auto? power? off,? beeper? will? beep five?times,?and?before?shut?down,?beep?one?time.
sc9711 hangzhou?silan?microelectronics?co.,ltd rev:1.1??????2007.11.07 http : www.silan.com.cn ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?7?of?14 current?measurement current?measurement smv dt sa sgnd 900k 100k 10k 10?ohm i+ i- 40ma 400ma lcd?display lcd?display lcd?display?and?format schematic network current?measure?10 r10 : r11=9 : 1 ac?measurement r23+vr3,r24=r25 reference?voltage r18,?r19,?vr1 temperature dc?400mv no no no yes dc?4v r5/(r4+r5)=1/10 no no yes dc?40v r6/(r4+r6)=1/100 no no yes dc?400v r7/(r4+r7)=1/1000 no no yes dc?1000v? r8/(r4+r8)=1/10000 no no yes ac?400mv r5/(r4+r5)=1/10, r21:r22=9:1 no yes yes ac?4v r5/(r4+r5)=1/10 no yes yes ac?40v r6/(r4+r6)=1/100 no yes yes ac?400v r7/(r4+r7)=1/1000 no yes yes (to?be?continued)
sc9711 hangzhou?silan?microelectronics?co.,ltd rev:1.1??????2007.11.07 http : www.silan.com.cn ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?8?of?14 (continued) network current ?measure?10 r10 : r11=9 : 1 ac?measurement r23+vr3,r24=r25 reference?voltage r18,?r19,?vr1 temperature ac?1000v? r8/(r4+r8)=1/10000 no yes yes r?400 w r4//r8=1k w no no no r?4k w r4//r8=1k w no no no r?40k w r4//r7=10k w no no no r?400k w r4//r6=100k w no no no r?4m w r4//r5=1m w no no no r?40m w r4=10m w no no no dc?400 m a? r13+r14+r15=1k w no no yes dc?4000 m a r13+r14+r15=1k w yes no yes dc?40ma r13+r14=10 w no no yes dc?400ma r13+r14=10 w yes no yes dc?10a r13=0.01 w no no yes ac?400 m a? r13+r14+r15=1k w yes yes yes ac?4000 m a r13+r14+r15=1k w no yes yes ac?40ma r13+r14=10 w yes yes yes ac?400ma r13+r14=10 w no yes yes ac?10a r13=0.01 w no yes yes cap r9+vr2 no no no diode (r30+r31)/r31=10 no no yes function?and?jumper?serring mea4 mea3 mea2 mea1 function jumper input 0 0 0 1 dcv j2 v/ohm/diode,?com 0 0 1 0 acv j2 v/ohm/diode,?com 0 0 1 1 ohm j1,?j3 v/ohm/diode,?com 0 1 0 0 hz j7,?j8 v/ohm/diode,?com 0 1 0 1 cap j1,?j3 v/ohm/diode,?com 0 1 1 0 diode/beeper j1,?j3 v/ohm/diode,?com 0 1 1 1 m a j5,?j6 m a/ma,?com 1 0 0 0 v j2 v/ohm/diode,?com 1 0 0 1 ohm/diode/beeper/cap j1,?j3 v/ohm/diode,?com 1 0 1 0 a j6 10a,?com 1 0 1 1 ma j4,?j6 m a/ma,?com 1 1 0 0 diode j1,?j3 v/ohm/diode,?com 1 1 0 1 beeper j1,?j3 v/ohm/diode,?com 1 1 1 0 hfe j9 adp?(pin?10),?com 1 1 1 1 temp j10,?j11? adp2?(pin?95),?com
sc9711 hangzhou?silan?microelectronics?co.,ltd rev:1.1??????2007.11.07 http : www.silan.com.cn ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?9?of?14 list?of?component?parameter part?type designator part?type designator part?type designator 0.01 r15 10 m f c14 4.7 m f c9 0.47 m f c10 10 m f c3 40k r35 0.47 m f c11 10 m f c4 40k r18 1.111m r5 1k r8 47nf c5 100k r11 1k r28 4mhz u2 100k r26 1m r16 500k r20 100k r27 1m r30 9.99 r14 100k r9 1m r1 900k r10 100k r3 1n914 d1 90k r21 100k r17 1n914 d2 990 r13 101.0k r6 buzzer b1 key s6 10k r22 200k r2 key s2 10k r7 20k r19 key s1 10k r12 22k r25 key s4 10m r4 22k r24 key s3 10nf c7 27nf c13 key s5 10 m f c14 27nf c6 vr10k vr1 10 m f c20 27nf c8 vr2k vr3 10 m f c19 27nf c12 vr30k vr2 28.5k r23 vr40k vr4
sc9711 hangzhou?silan?microelectronics?co.,ltd rev:1.1??????2007.11.07 http : www.silan.com.cn ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?10?of?14 typical?application?circuit
sc9711 hangzhou?silan?microelectronics?co.,ltd rev:1.1??????2007.11.07 http : www.silan.com.cn ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?11?of?14 chip?topography chip?size:?4.12?x?5.37?(mm 2 ) note:?the?substrate?is?connecting?with?v dd .
sc9711 hangzhou?silan?microelectronics?co.,ltd rev:1.1??????2007.11.07 http : www.silan.com.cn ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?12?of?14 pad?corrdinates ?(unit: m m) pin?no. symbol x y pin?no. symbol x y 1 op2n 819.4 203.75 54 cb 4432.95 3790.65 3 op2o 980.6 203.75 55 ca 4239.75 3790.65 4 adip 1141.8 203.75 56 vgg 4083.55 3790.65 6 adin 1303 203.75 58 vdda 3837.65 3790.65 8 sa 1464.2 203.75 59 rlcd 3696.75 3790.65 9 sgnd 1625.4 203.75 61 xin 3425.75 3790.65 10 adp 1786.6 203.75 62 xout 3274.35 3790.65 11 dt 1947.8 203.75 64 txd 3113.45 3790.65 13 smv 2109 203.75 66 seg14 2667.05 3790.65 14 cres1 2270.2 203.75 67 seg13 2521.15 3790.65 15 rl 2431.4 203.75 68 seg12 2375.25 3790.65 16 rcap1 2592.6 203.75 69 seg11 2229.35 3790.65 17 rcap2 2753.8 203.75 70 seg10 2083.45 3790.65 18 onek 2915 203.75 71 seg9 1937.55 3790.65 20 tenk 3076.2 203.75 72 seg8 1791.65 3790.65 22 hunk 3237.4 203.75 73 seg7 1645.75 3790.65 24 onem 3398.6 203.75 74 seg6 1499.85 3790.65 26 tenm 3559.8 203.75 75 seg5 1353.95 3790.65 27 cres2 3721 203.75 76 seg4 1208.05 3790.65 28 testb 3912.2 203.75 77 seg3 1062.15 3790.65 29 adpc1 4162.2 203.75 78 seg2 916.25 3790.65 30 adpc2 4412.2 203.75 79 seg1 770.35 3790.65 31 select 5037.4 324.75 80 com1 203.8 3216.25 32 range 5037.4 555.55 81 com2 203.8 3070.35 33 rel 5037.4 786.85 82 com3 203.8 2924.45 34 hz/hold 5037.4 1018.15 83 com4 203.8 2778.55 35 duty 5037.4 1259.45 84 entx 203.8 2623.85 36 cap 5037.4 1448.7 85 beeper 203.8 2453.85 37 mea4 5037.4 1637.95 86 blout 203.8 2302.65 38 mea3 5037.4 1827.2 87 rst 203.8 2156.25 39 mea2 5037.4 2016.45 89 refi 203.8 1867.65 40 mea1 5037.4 2205.7 90 refo 203.8 1706.45 41 lcdc1 5037.4 2394.95 91 fta 203.8 1545.25 42 lcdc2 5037.4 2584.2 93 ftb 203.8 1384.05 43 tsta 5037.4 2773.45 94 ftc 203.8 1222.85 44 gnd 5037.4 2963.2 95 tstc 203.8 1061.65 46 agnd 5037.4 3146.1 96 op1n 203.8 900.45 48 v dd 5037.4 3335.85 98 op1o 203.8 739.25 52 vb 5037.4 3515.2 100 op2p 203.8 578.05 note:?the?original?point?of?the?coordinate?is?the?die?center.
sc9711 hangzhou?silan?microelectronics?co.,ltd rev:1.1??????2007.11.07 http : www.silan.com.cn ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?13?of?14 package?outline qfp-100-14x20-0.65 unit:?mm handling?mos?devices: electrostatic?charges?can?exist?in?many?things.?all?of?our?mos?devices?are?internally?protected?against electrostatic?discharge?but?they?can?be?damaged?if?the?following?precautions?are?not?taken: persons?at?a?work?bench?should?be?earthed?via?a?wrist?strap. equipment?cases?should?be?earthed. all?tools?used?during?assembly,?including?soldering?tools?and?solder?baths,?must?be?earthed. mos?devices?should?be?packed?for?dispatch?in?antistatic/conductive?containers.
sc9711 hangzhou?silan?microelectronics?co.,ltd rev:1.1??????2007.11.07 http : www.silan.com.cn ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?14?of?14 attachment revision?history data rev description page 2004.08.04 1.0 original 2007.11.07 1.1 modify?the??function?and?jumper?serring?

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