SC9711 MCU EMBEDDED A/D CONVERTER FOR DMM(33/4 DIGITS) 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): (400.0µA,4000µA), (40.00mA, 400.0mA), (10.00A) Resistor: 400.0 ,4.000k , 40.00k , QFP-100-14x20-0.65 400.0k , 4.000M ,40.00M Diode and Continuity Measurement: Capacitance: 4.000nF, 40.00nF, 400.0nF, 4.000µF, 40.00µF, 200.0µF(30Sec) Frequency: ORDERING INFORMATIONS 9.999Hz, 99.99Hz, 999.9Hz, 9.999KHz, 99.99KHz, 999.9KHz, 9.999MHz Duty: 0.1%~99.9% * 3V battery operation Device Package SC9711 QFP-100-14 x 20-0.65 SC9711X DIE * 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 APPLICATIONS * Hand-held DMM * Pocket DMM * Pen-type DMM * Clamp Meter BLOCK DIAGRAM HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2007.11.07 Page 1 of 14 SC9711 ELECTRICAL CHARACTERISTICS (Tamb=25°C, VDD=3V) Characteristics Symbol Recommend Operating Voltage VDD Test conditions Min. Typ. 2.4 Supply Current IDD At DCV mode Power-off Current IPO AT Power off Digital Input High Voltage VIH Digital Input Low Voltage VIL Pull Up Current IPU 1.5 Max. Unit 3.6 V 2 mA 10 µA VDD-0.5 Vin=0 V 0.5 V 5 10 µA Analog Ground Voltage AGND VDD/2-3% VDD/2 VDD/2+3% V Analog Power Supply Voltage VDDA 3.4 3.7 4 V Build In Reference Voltage VBAND 1.1 1.25 1.4 V +2000 ppm/V Reference Voltage Output Voltage voltage VDD=2.4~3.6 Voltage Coefficient Recommend Input Reference Relative AGND REF1 Low Battery Detector Voltage VBATT LCD Frame Frequency FLCD LCD Pk-Pk Driver Voltage VLCD Beeper Frequency FBEEP Relative to AGND 2.25 2.4 V 2.55 32 2.8 3 Linearity (max. Deviation From DC ADPx1 input Best Straight Line Fit) Full Scale±240.0mV V Hz 3.2 V 2.7 DC ADPx1 input=0V KHz -0.001 0.000 0.0001 -1 0 +1 Counts 0.2 % 60 Ohm AC ADPx1 Bandwidth 240mVrms Error 20Hz~1KHz Continuity Check Value ADC 0.44 voltage Zero Input Reading AC Measurement -2000 Measurement RCC 10 O.L Display Count Autorange Up Counts Autorange Down Counts Frequency Counter Input Level (Hz/duty Control) Frequency Counter Max. Input Frequency (Hz/Duty Control) Duty Measurement Min. Pulse Width Error (Hz/duty Control) Frequency Counter Input Level (MEAS=0100) Frequency Counter Input Max. Frequency (MEAS=0100) VFREA FMAXA *1 VFRED FMAXD VIL( relative AGND) wave input 360 Counts mV mV Hz µs 1 -600 VIH(relative AGND) VPP=±600mV square Counts 500k wave input wave input 4000 60 VPP=±100mV square VIL(relative AGND) Counts -60 VIH(relative AGND) VPP=±100mV square 4050 mV 600 5M mV Hz (To be continued) HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2007.11.07 Page 2 of 14 SC9711 (Continued) Characteristics Symbol Max. Unit 100 ns 4.000nF 5%+25 Counts Capacitor Measurement 40.00nF 2%+10 Counts Accuracy After Zero Input 400.0nF 0.5%+3 Counts Relative 400.0nF 4.000µF 1%+2 Counts 40.00µF 1.5%+2 Counts Duty Measurement Min. Pulse *1 Width Error (MEAS=0100) Test conditions Min. Typ. VPP=±600mV square wave input 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 0 1 0 1 CAP 0 1 1 0 Diode/ Beeper Diode/ Beeper switch 0 1 1 1 µA 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 HZ/Duty 400mV full scale input, no decimal, input through ADP (100/Amp, gain)(V/(C input, 1 1 1 1 Temp no decimal, input from ADP2. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2007.11.07 Page 3 of 14 SC9711 N.C VB N.C CB CA VGG N.C VDDA RLCD N.C XIN XOUT N.C TXD N.C SEG14 SEG13 SEG12 SEG11 SEG10 SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG2 SEG3 SEG1 COM1 PIN CONFIGURATION 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 COM2 81 50 N.C COM3 82 49 N.C COM4 83 48 VDD ENTX 84 47 N.C BEEPER 85 46 AGND BLOUT 86 45 N.C RST 87 44 GND N.C 88 43 TSTA REFI 89 42 LCDC2 41 LCDC1 FTA 91 40 MEA1 N.C 92 39 MEA2 FTB 93 38 MEA3 FTC 94 37 MEA4 TSTC 95 36 CAP OP1N 96 35 Hz/DUTY N.C 97 34 HOLD OP1O 98 33 REL N.C 99 32 RANGE 31 SELECT SC9711 REFO 90 ADPC2 ADPC1 TESTB CRES2 TENM N.C ONEM N.C HUNK N.C TENK N.C N.C ONEK ADIN RCAP2 N.C 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 RL ADIP 9 RCAP1 OP2O 8 CRES1 7 SMV 6 N.C 5 DT 4 ADP 3 SGND 2 SA 1 N.C 100 OP2N OP2P PIN DESCRIPTIONS Pin no. symbol 1 OP2N 2 NC 3 OP2O 4 AD1P 5 NC 6 AD1N 7 NC 8 SA 9 SGND 10 ADP 11 DT Description Pin no symbol 51 NC 52 VB AC measure positive input 53 NC AC measurement positive input 54 CB 55 CA 56 VGG 57 NC 58 VDDA 59 RLCD 60 NC 61 XIN AC measure negative input AC measurement negative input Current measurement ADC connection Analog ground ADC negative input Additional ADC positive input Diode measurement resistor connection Description Bias current input Double voltage capacitor voltage capacitor connection Double positive connection Double voltage output Voltage stabilization output/ analog power LCD drive voltage regulate resistor Oscillator input port (To be continued) HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2007.11.07 Page 4 of 14 SC9711 (Continued) Pin no. symbol 12 NC 13 SMV Description Pin no symbol 62 XOUT 63 NC 64 TXD Resistor reference voltage input 65 NC Description Oscillator output port High impedance voltage input/R measurement ADC positive input/diode resistor connection R measurement filter capacitor 14 CRES1 15 RL 16 RCAP1 No Use. 66 SEG14 LCD segment 14 17 RCAP2 No Use. 67 SEG13 LCD segment 13 18 ONEK 1.000kΩ resistor 68 SEG12 LCD segment 12 19 NC 69 SEG11 LCD segment 11 20 TENK 70 SEG10 LCD segment 10 21 NC 71 SEG9 LCD segment 9 22 HUNK 72 SEG8 LCD segment 8 23 NC 73 SEG7 LCD segment 7 24 ONEM 1.111MΩ resistor connection 74 SEG6 LCD segment 6 75 SEG5 LCD segment 5 10MΩ resistor connection 76 SEG4 LCD segment 4 77 SEG3 LCD segment 3 connection 10.01kΩ resistor connection 100.1kΩ resistor Power control 25 NC 26 TENM 27 CRES2 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 36 CAP No Use. 86 BLOUT 37 MEA4 Measure mode select 4 87 RST 38 MEA3 Measure mode select 3 88 NC 39 MEA2 Measure mode select 2 89 REFI 40 MEA1 Measure mode select 1 90 REFO 41 LCDC1 No Use. 91 FTA 42 LCDC2 No Use. 92 NC 43 TSTA Test pin 93 FTB 44 GND 2×1.5V battery negative input 94 FTC 45 NC 95 TSTC The capacitor of Resistor voltage Beeper output Back Light digital output CPU reset input reference voltage input Bandgap reference voltage output ADC filter positive output pin ADC filter positive input pin ADC preceding filter negative port Test pin (To be continued) HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2007.11.07 Page 5 of 14 SC9711 (Continued) Pin no. symbol 46 AGND 47 NC 48 VDD 49 50 Description Pin no symbol 96 OP1N 97 NC 98 OP1O NC 99 NC NC 100 OP2P 3V battery midpoint, analogy ground. 2×1.5V battery positive input Description AC signal buffer operate amplifier input pin (-) AC signal buffer operate amplifier output pin 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/DCµA >4000µA, 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. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2007.11.07 Page 6 of 14 SC9711 CURRENT MEASUREMENT Current measurement 900K I+ 40mA SMV 10 Ohm 100K DT 400mA SA I10K SGND 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 No Yes Yes AC 400mV R5/(R4+R5)=1/10, R21:R22=9:1 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) HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2007.11.07 Page 7 of 14 SC9711 (Continued) Network Current measure ÷10 R10:R11=9:1 AC measurement Reference Voltage R18, R19, VR1 R23+VR3,R24=R25 Temperature AC 1000V R8/(R4+R8)=1/10000 No Yes Yes R 400Ω R4//R8=1kΩ No No No R 4kΩ R4//R8=1kΩ No No No R 40kΩ R4//R7=10kΩ No No No R 400kΩ R4//R6=100kΩ No No No R 4MΩ R4//R5=1MΩ No No No R 40MΩ R4=10MΩ No No No DC 400µA R13+R14+R15=1kΩ No No Yes DC 4000µA R13+R14+R15=1kΩ Yes No Yes DC 40mA R13+R14=10Ω No No Yes DC 400mA R13+R14=10Ω Yes No Yes DC 10A R13=0.01Ω No No Yes AC 400µA R13+R14+R15=1kΩ Yes Yes Yes AC 4000µA R13+R14+R15=1kΩ No Yes Yes AC 40mA R13+R14=10Ω Yes Yes Yes AC 400mA R13+R14=10Ω No Yes Yes AC 10A R13=0.01Ω 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 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 µA J5, J6 µA/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 µA/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 HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn Jumper Input REV:1.1 2007.11.07 Page 8 of 14 SC9711 LIST OF COMPONENT PARAMETER PART TYPE DESIGNATOR PART TYPE DESIGNATOR PART TYPE DESIGNATOR 0.01 R15 10µF C14 4.7µF C9 0.47µF C10 10µF C3 40k R35 0.47µF C11 10µF 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 10µF C14 27nF C6 VR10k VR1 10µF C20 27nF C8 VR2k VR3 10µF C19 27nF C12 VR30k VR2 28.5k R23 VR40k VR4 HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2007.11.07 Page 9 of 14 SC9711 TYPICAL APPLICATION CIRCUIT HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2007.11.07 Page 10 of 14 SC9711 CHIP TOPOGRAPHY Chip Size: 4.12 x 5.37 (mm2) Note: the substrate is connecting with VDD. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2007.11.07 Page 11 of 14 SC9711 PAD CORRDINATES (Unit: µm) 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 VDD 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. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2007.11.07 Page 12 of 14 SC9711 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. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2007.11.07 Page 13 of 14 SC9711 ATTACHMENT Revision History Data REV Description 2004.08.04 1.0 Original 2007.11.07 1.1 Modify the “FUNCTION AND JUMPER SERRING” HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn Page REV:1.1 2007.11.07 Page 14 of 14