M56710FP MITSUBISHI | Alldatasheet

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F2F MAGNETIC STRIPE ENCORDING CARD READER M 56710FP MITSUBISHI <CONTROL / DRIVER IC> PIN C O N FIG URAT IO N (TO P VIEW )DES CRIPT IO N The M56710FP is a semiconductor integrated circuit of BiCMOS structure having an F2F demodulator function for magnetic card reader. FEAT URES l Low current dissipation (0.7mA when on standby as a standard) l Provided with glance-over selection input (4, 8, and 16 bits) l Provided with output polarity (“L” active or “H” active) switching input l Miniature mini-mold package l Wide operating temperature range Ta = -20 – 75°C APP LICAT IO N Magnetic card reader FUNCT IO N Data signal which is read from magnetic card via magnetic head is input from HD2 and HD1 pins, and converted into F2F pattern signal by analog processing in amplifier OP1, differentiator OP2, sensitivity setting circuit and waveform shaping circuit. If F2F signal is input, the logic section glances over the prescribed number of bits set by IB1 and IB2 input before performing digital processing, and then outputs card reading signal CLS, read clock signal RCP, and read data signal RDT. INV turning to “L” switches each output of CLS, RCP and RDT from “L” active to “H” active.

  • STANDARD B ITS: Let the number of glance-over bits set by IB1 and IB2 be M. Let the Mth FC (flux change) through M+1st FC after LDI input is turned from “L” to “H” be a standard bit with a time width of TB0. I/O is discriminated from the next bit to this standard bit as a data bit. Outline 20P2N-A
  • I/O discrim ination Let the data bit time width of a data bit be TBn, and if there is one next FC between the FC at the end of that bit (i.e. the beginning of the next bit) to 5/7TBn, let the next bit (Bn+1) be data “1”, and, if there is no FC, be data “0”.
  • O utputsignaltim e w idth When letting the oscillation cycle of oscillation circuit be TOSC , 165 156 147 138 129 1110 Read control input F2F output Noise filter Differentiator input Amplifier output Amplifier (–) input Amplifier (+) input Standard voltage output Grounding LDI NC F2F PKO PKI AMP HD2 HD1 VRF GND fi fi fi fi VCC1 VCC2 CX1 CX2 IB1 IB2 INV CLS RDT RCP Power supply Oscillation capacitor Oscillation capacitor Ignore bit 1 Ignore bit 2 Invert input Card travelling signal output Read data output Power supply Read clock output fi fi fi M56710FP NC: no connection B LOC K D IAGR A M Card travelling signal output 456 Amplifier output PKI Differentiator input AMP Noise filter PKO F2F output F2F VCC2 VCC1 INV CLS RDT RCP GND 11 bit downcounter 11 bit upcounter 5TOSC 7TOSC TOSCOscillation circuit Reference voltage circuit OP1 OP2 Control circuit Sensitivity setting Waveform shaping HD2 HD1 Amplifier (-) input Amplifier (+) input VRFReference voltage output LDIRead control input IB2Ignore bit 2 IB1Ignore bit 1 CX2Oscillation capacitor CX1Oscillation capacitor Power supply Power supply Invert input Read data output Read clock output

F2F MAGNETIC STRIPE ENCORDING CARD READER M 56710FP MITSUBISHI <CONTROL / DRIVER IC> I/O CIRCUI T 1 2 LDI, IB1, IB2 input circuit INV input circuit CLS, RDT, RCP output circuit PIN FUNCT IO N D ESCR IPTIO N Pin No. Name Function LDI F2F PKO PKI AMP HD2 HD1 VRF GND RCP RDT CLS INV IB2 IB1 CX2 CX1 VCC2 VCC1 Read control input F2F output Noise filter Differentiator input Amplifier output Amplifier (–) input Amplifier (+) input Reference voltage output Grounding Read clock output Read data output Card travelling signal output Invert input Ignore bit 2 Ignore bit 1 Oscillation capacitor Oscillation capacitor Power supply Power supply Schmidt trigger input. At “L”, reset the internal digital circuit. At “H”, F2F modulation is possible. F2F signal output that has amplified, differentiated and further waveform-shaped the magnetic head signal. Connect noise removing capacitor CNF between PKI and PKO. Refer to PKO and AMP. Connect resistor RPK and capacitor CPK between AMP and PKI. Connect magnetic head between HD1 and HD2. Connect magnetic head between HD1 and HD2. Reference voltage output of Vcc 1/2 Clock pulse output after F2F modulation Data output after F2F modulation Signal output indicating that card is travelling CLS, RDT and RCP output becomes “L” active at “H” (OPEN), and “H” active at “L”. Glance-over bit setting pin Glance-over bit setting pin Connect capacitor C OSC between CX1 and CX2 to set oscillation frequency. Connect capacitor C OSC between CX1 and CX2 to set oscillation frequency. Digital circuit section power supply pin. Supply voltage is Vcc. Analog circuit section power supply pin. Supply voltage is Vcc (same voltage as Vcc2). Pin name LDI IB1 IB2 VCC2 GND VCC2 GND CLS RDT RCP INV VCC2 GND

F2F MAGNETIC STRIPE ENCORDING CARD READER M 56710FP MITSUBISHI <CONTROL / DRIVER IC> G LA NCE- O VER BIT SET TIN G A N D TIM IN G B Y IB1 AND IB 2

  • Internal digital circuit is reset with LDI input at “L”.
  • LDI input may be at “H” at all times.
  • CLS output turns to “L” after counting the flux change FC (change in the status of F2F) of the number of glance-over bits, and returns to “H” when BIC (bit interval counter) has fully counted. (At “L” active). IB2 input IB1 input Number of glance-over bits Description LL LH HL HH OP ER A TING TIMING D IAGR A M x1 2 3 4 TBO : Reference bit F2F LDI BIC full count CLS About 14300 TOSC HD2 -HD1 F2F LDI (5/7) CLS RCP RDT HD2 - HD1 F2F LDI (5/7) CLS RCP RDT TB 0 TB n TB n+ Reference bit 5/7TBn Bit 1/0 discrimination signal 00 00 1 0 1 1 0 RDT data is output 1 bit behind F2F data. 000 0 1 00 0 0 0 0 1 0 1 1 0 0

F2F MAGNETIC STRIPE ENCORDING CARD READER M 56710FP MITSUBISHI <CONTROL / DRIVER IC> ABS O LUT E M AXIM UM RA TING S (Ta = -20 – 75°C, unless otherwise noted) Symbol Parameter Conditions VCC VI VI IO VID Topr Tstg Supply voltage Input voltage Input voltage Output voltage Differential input voltage Operating temperature Storage temperature Ratings -0.3 – +6.5 -0.3 – VCC +0.3 -0.3 – VCC +0.3 -10 – +10 -1.2 – +1.2 -20 – 75 -55 – 125 Unit V V V mA V VCC1 , VCC2 LDI, IB1, IB2, INV HD1, HD2 CLS, RDT, RCP Between HD2 and HD1 pins Note 1:Voltage is based on GND pin of the circuit (0V), unless otherwise noted. 2:Direction of the current flowing into the circuit is represented by “positive” (without code) and that flowing out of the circuit by “negative” (- code). REC O M M ENDE D O PERA TIN G C O NDITIO N (Ta = -20 – 75°C, unless otherwise noted) Limits Min. Typ. Max.Symbol Test conditions UnitParameter VCC Supply voltage 5 5.5 VI VIH VIL IOH IOL VIN fIN fOSC C OSC C OSC R PK C PK C NF R PF C VC C VR Input voltage “H” input voltage “L” input voltage “H” output current “L” output current Differential input voltage Input frequency Oscillation frequency External capacitor External capacitor External resistor External capacitor External capacitor External resistor External capacitor External capacitor VCC1 , VCC2 LDI IB1, IB2, INV IB1, IB2, INV CLS, RDT, RCP CLS, RDT, RCP HD2-HD1 HD2-HD1 CX1, CX2 CX1, CX2 AMP PKI PKI, PKO PKI, F2F VCC1 , VCC2 VRF VCC1 and VCC2 shall have the identical voltage. fOSC = 1/TOSC Reference value when corresponding to 210BPI Reference value Reference value Reference value Reference value fOSC ¥ 1/COSC Reference value when corresponding to 210BPI Reference value when corresponding to 210BPI 4.0 0.8VCC -0.5 0.3 0.2 VCC VCC 0.2VCC 100 V V V V mA mA mVp-p kHz MHz pF pF W mF pF M W mF mF 470 0.033 220 4.7 0.1 10.8 2

F2F MAGNETIC STRIPE ENCORDING CARD READER M 56710FP MITSUBISHI <CONTROL / DRIVER IC> EL ECT R ICAL CHARACT ERISTICS (Ta = -20 – 75°C and VCC = 5V, unless otherwise noted) Limits Min. Typ. Max.Symbol UnitParameter VTH IB1, IB2, INV Test circuit IOL = 10mA IOL = 5mA IOH = -10mA IOH = -0.5mA VOL CLS, RDT, RCP VOH CLS, RDT, RCP IIL LDI, IB1, IB2 IIL INV IIH LDI, IB1, IB2, INV IIT+ INV VREF VRF Test conditions VCC = 4 – 5.5V VCC = 4V VCC = 4V GV11 OP1 GV21 OP1 RIN1 OP1 VOPP1 OP1 IIL2 PKI – F2F IIH2 PKI – F2F VTH+2 PKI – F2F VTH-2 PKI – F2F VTHD2 Threshold voltage “L” output voltage “H” output voltage “L” input current “L” input current “H” input current Positive threshold current Reference voltage Voltage gain 1 Voltage gain 2 Input resistance Maximum output voltage “L” sensitivity current “H” sensitivity current Positive threshold voltage Negative threshold voltage Threshold differential voltage PKI – F2F VCC = 5.5V, VI= 0V VCC = 5.5V, VI= 0V VCC = 5.5V, VI= 5.5V VCC = 5.5V, VI= VTH VIN = 0mVp-p fIN = 1kHz VIN = 80mVp-p sine wave fIN = 15kHz VIN = 80mVp-p sine wave fIN = 1kHz VIN = 80mVp-p sine wave fIN = 1kHz sine wave THD AMP = 5% VM, F2F < 0.5V VM, F2F > 4.5V On the VRF basis On the VRF basis (VTH+2) - ‰VTH-2‰ On the VRF basis IPKI = 1mA – +1mAVPKO Pin voltage range PKO VOL3 “L” output voltage F2F VPKI = 0V, IF2F = 0.5mA VOH3 “H” output voltage F2F VPKI = 5V, IF2F = -0.5mA VTH+4 Positive threshold voltage LDI VTH-4 Negative threshold voltage LDI VHY4 Hysterisis width LDI (VTH+4) - (VTH-4) ICCW Standby circuit current VCC1 , VCC2 VIN = 0mVp-p ICCR Operating circuit current VCC1 , VCC2 fIN = 8.2kHz VIN = 68mVp-p sine wave fOSC = 1MHz fOSC Oscillation frequency RCP C OSC = 33pF TOW Output pulse width RCP fOSC = 1MHz TOD Intra-output delay time RDT, RCP fOSC = 1MHz TNW Input noise width INV Note: Min. and max. limits do not represent absolute values. : Typ. limits represent standard values when Ta = 25°C and VCC = 5V. Double – 0.3VCC – 0.7VCC V 3.8 3.2 -10 -80 -10 -250 2.3 0.3 0.2 -0.7 -0.15 -1.2 4.5 2.5 1.5 0.5 0.75 0.5 2.5 0.45 -0.45 0.7 1.9 0.2 0.4 +10 -10 +10 -50 2.7 -0.3 0.7 -0.2 0.15 1.2 0.5 3.5 2.7 1.5 1.0 2.4 1.5 V V V V mA mA mA mA V Double kW VP-P mA mA V V V V V V V V V mA mA MHz ms ms ms

F2F MAGNETIC STRIPE ENCORDING CARD READER M 56710FP MITSUBISHI <CONTROL / DRIVER IC> TEST CIRCUI T:On the following drawing, COSC = 33pF, RPK=470 W , CPK = 0.033mF, CNF = 470pF, CVR = 1mF 1.Testing ofVRE F,ICCW, ICCR, fOS C 3.Testing ofGV 11,GV 21,R IN1,VO PP1 4.Testing ofIIH2,IIL2,VPK O IIL2 is PKI input current providing VM.F2F < 0.5V. IIH2 is PKI input current providing VM.F2F > 4.5V. VPKO = VM.PKO - VREF GV11 = VM.AMP VIN RIN1 = 2VM.AMP GV11 ·VIN - VM.AMP x 10(kW ) V LDI F2F PKO PKI AMP HD2 HD1 VRF GND VCC1 VCC2 CX1 CX2 IB1 IB2 INV CLS RDT RCP C OSC VCC VIN, fIN RPK CP K CNF Oscilloscope fosc VREF A ICCW ICCR RCP TOW fOSC = 16 TOW V LDI F2F PKO PKI AMP HD2 HD1 VRF GND VCC1 VCC2 CX1 CX2 IB1 IB2 INV CLS RDT RCP C OSC VCC CVR VIN, IIH 10kW THD meter (ON at VOPP1) VM.AMP 10kW (OFF at RIN) VOPP1 RPK CP K CNF V LDI F2F PKO PKI AMP HD2 HD1 VRF GND VCC1 VCC2 CX1 CX2 IB1 IB2 INV CLS RDT RCP C OSC VCC CVR VM.F2F VM.PKO IPKI IIH2 IIL2 2.Testing ofVOL ,VOH ,IIL,IIH,IIT+ Note: Short the IB1 and IB2 to the GND when those pins are not used for testing. A V LDI F2F PKO PKI AMP HD2 HD1 VRF GND VCC1 VCC2 CX1 CX2 IB1 IB2 INV CLS RDT RCP C OSC VCC CVR IIH IIL IIT+ VOL VOH IOL IOH VI

F2F MAGNETIC STRIPE ENCORDING CARD READER M 56710FP MITSUBISHI <CONTROL / DRIVER IC> VCC VPKI “H” “L” VM.F2F VPKI+ VPKI- VTH+2 = VREF-VPKI- VTH-2 = VREF-VPKI+ 5.Testing ofVT H +2,VT H-2,VO L3,VO H 3 LDI F2F PKO PKI AMP HD2 HD1 VRF GND VCC1 VCC2 CX1 CX2 IB1 IB2 INV CLS RDT RCP VCC CVR VM.F2F VOL3 VOH3 5kW (ON at VOL3 and VOH3 ) VPKI V IF2F 5kW 6.Testing ofVT H +4,VT H-4 C OSC LDI F2F PKO PKI AMP HD2 HD1 VRF GND VCC1 VCC2 CX1 CX2 IB1 IB2 INV CLS RDT RCP VM.CLS VCC VLDI V VCC VLDI “H” “L” VM.CLS VTH+4 VTH-4 TNW, a negative noise put into INV input, is the maximum time interval not considered INV input. 7.Testing ofTO W ,TO D ,TN W LDI F2F PKO PKI AMP HD2 HD1 VRF GND VCC1 VCC2 CX1 CX2 IB1 IB2 INV CLS RDT RCP (ON at TNW ) VCC CL K CL K fosc duty 50% OscilloscopeCVR 5kW Logic pattern generator RCP RDD TOW TOD TOD TNW VCC INV RCP Noise input

F2F MAGNETIC STRIPE ENCORDING CARD READER M 56710FP MITSUBISHI <CONTROL / DRIVER IC> APP LICAT IO N EXA M PLE When setting the glance-over bit to 16 bits to let it be “L” active output LDI F2F PKO PKI AMP HD2 HD1 VRF GND RCP RDT CLS INV IB2 IB1 CX2 CX1 V CC2 V CC1 CVC C OSC CNF RPK CP K RPF CVR