Datasheet M56710FP Datasheet (Mitsubishi)

MITSUBISHI <CONTROL / DRIVER IC>

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M56710FP

F2F MAGNETIC STRIPE ENCORDING CARD READER

DESCRIPTION

The M56710FP is a semiconductor integrated circuit of BiCMOS
structure having an F2F demodulator function for magnetic card
reader.

FEATURES

●Low current dissipation (0.7mA when on standby as a standard)

●Provided with glance-over selection input (4, 8, and 16 bits)

●Provided with output polarity (“L” active or “H” active) switching

input

●Miniature mini-mold package

●Wide operating temperature range Ta = -20 – 75°C

APPLICATION

Magnetic card reader

FUNCTION

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 BITS:

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.

PIN CONFIGURATION(TOP VIEW

→

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

1
2

←

3
4

→
←
→
→

9

20
19
18

M56710FP

17
165
156
147
138
12
1110

Outline 20P2N-A

• I/O discrimination

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”.

• Output signal time width

When letting the oscillation cycle of oscillation circuit be TOSC,

• RCP output pulse width TOW•••••••••••••••••••••••about 16TOSC

• RCP delay time to RDT•••••••••••••••••••••••••••••••about 8TOSC

VCC1
VCC2
CX1
CX2

←

IB1

←

IB2

←

INV

→

CLS

→

RDT

→

RCP

Power supply
Power supply
Oscillation capacitor
Oscillation capacitor
Ignore bit 1
Ignore bit 2
Invert input

Card travelling
signal output

Read data output
Read clock output

NC: no connection

BLOCK DIAGRAM

Amplifier (-) input

Amplifier (+) input

e output

Read control input

Ignore bit 2

HD2
HD1

VRFReference volta

LDI

IB2

IB1Ignore bit 1

CX2Oscillation capacito
CX1Oscillation capacitor

Amplifier
output

7
8

9

Reference
voltage
circuit

1

15

16

17

Oscillation
circuit

18

AMP

OP1

T

OSC

Differentiator
input

6

1/5

1/7

PKI

5

OP2

Control circuit

5T

OSC

7TOSC

Noise filter

PKO

4

Sensitivity
setting

11 bit

downcounter

11 bit

upcounter

Waveform
shaping

F2F output

F2F

3

20

19

14

13

12

11

10

Power supply

VCC1
V

CC2

Power supply

INV

Invert input

CLS

Card travelling signal output

RDT

Read data output

RCP

Read clock output

GND

I/O CIRCUIT

MITSUBISHI <CONTROL / DRIVER IC>

M56710FP

F2F MAGNETIC STRIPE ENCORDING CARD READER

1 2

3

LDI, IB1, IB2 input circuit INV input circuit

CC2

V

LDI
IB1
IB2

GND

CLS, RDT, RCP output circuit

VCC2

CLS
RDT
RCP

GND

INV

V

CC2

GND

PIN FUNCTION DESCRIPTION

Pin
No.

10
11
12
13
14
15
16
17
18
19
20

Pin

name

1

LDI

Read control input

3

F2F

F2F output

4

PKO

Noise filter

5

PKI

Differentiator input

6

AMP

Amplifier output

7

HD2

Amplifier (–) input

8

HD1

Amplifier (+) input

9

VRF

Reference voltage output

GND

Grounding

RCP

Read clock output

RDT

Read data output

CLS

Card travelling signal output

INV

Invert input

IB2

Ignore bit 2

IB1

Ignore bit 1

CX2

Oscillation capacitor

CX1

Oscillation capacitor

V

Power supply

CC2

Power supply

VCC1

Name Function

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
Connect capacitor C

OSC between CX1 and CX2 to set oscillation frequency.
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 Vcc

2).

F2F MAGNETIC STRIPE ENCORDING CARD READER

”

GLANCE-OVER BIT SETTING AND TIMING BY IB1 AND IB2

IB2 input IB1 input

LL

LH

HL

Number of

glance-over bits

4

8

16

Description

• 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).

MITSUBISHI <CONTROL / DRIVER IC>

M56710FP

HH

——

• IB2, IB1: “L”, “L”

x1234

F2F

LDI

BIC
full count

CLS

OPERATING TIMING DIAGRAM

INV : “H”

HD2 - HD1

F2F

LDI

(5/7)

IB2, IB1 : “L”, “L

Bit 1/0 discrimination signal

TBO : Reference bit

About 14300 T

TB0 TBn

Reference bit

OSC

TBn+

5/7TBn

CLS

RCP

RDT

HD2 - HD1

F2F

LDI

(5/7)

CLS

RCP

000 0 100000010110 0

RDT

0000 10110

RDT data is output 1 bit behind F2F data.

MITSUBISHI <CONTROL / DRIVER IC>

)

)

F2F MAGNETIC STRIPE ENCORDING CARD READER

ABSOLUTE MAXIMUM RATINGS(Ta = -20 – 75°C, unless otherwise noted

M56710FP

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

V

CC1, VCC2

LDI, IB1, IB2, INV
HD1, HD2
CLS, RDT, RCP
Between HD2 and HD1 pins

Ratings

-0.3 – +6.5

-0.3 – V

-0.3 – V

-10 – +10

-1.2 – +1.2

-20 – 75

-55 – 125

CC+0.3
CC+0.3

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).

RECOMMENDED OPERATING CONDITION(Ta = -20 – 75°C, unless otherwise noted

Symbol Test conditions UnitParameter

CC Supply voltage 5 5.5

V
VI
VIH
VIL
IOH
IOL
VIN
fIN
fOSC
COSC
COSC
RPK
CPK
CNF
RPF

C

VC

CVR

–

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

V

CC1, VCC2

VRF

VCC1 and VCC2 shall have the identical voltage.

fOSC = 1/TOSC

OSC ∞ 1/COSC

f

Reference value when corresponding to 210BPI
Reference value when corresponding to 210BPI
Reference value when corresponding to 210BPI

Reference value
Reference value

Reference value
Reference value

0.8V

Limits

Min. Typ. Max.

4.0
0

CC

0

-0.5
0
3

0.3

0.2
25

33

470

0.033
220

4.7
–

0.1

10.8 2

CC

V
VCC

0.2VCC
0
5

80
15

2

100

Unit

V
V
V

mA

V

°C
°C

V
V
V

V
mA
mA

mVp-p

kHz

MHz

pF
pF

Ω

µF

pF

MΩ

µF

µF

MITSUBISHI <CONTROL / DRIVER IC>

)





M56710FP

F2F MAGNETIC STRIPE ENCORDING CARD READER

ELECTRICAL CHARACTERISTICS(Ta = -20 – 75°C and VCC = 5V, unless otherwise noted

Symbol UnitParameter
VTH
VOL CLS, RDT, RCP

OH CLS, RDT, RCP

V
IIL LDI, IB1, IB2

IIL INV
IIH LDI, IB1, IB2, INV
IIT+ INV
VREF VRF

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

IB1, IB2, INV

VPKO Pin voltage range PKO

Test conditions

V

CC = 4 – 5.5V

OL = 10µA

VCC = 4V

CC = 4V

V
V

CC = 5.5V, VI = 0V

V

CC = 5.5V, VI = 0V

V

CC = 5.5V, VI = 5.5V

V

CC = 5.5V, VI = VTH

V

IN = 0mVp-p

I
I

OL = 5mA

I

OH = -10µA

I

OH = -0.5mA

fIN = 1kHz
VIN = 80mVp-p sine wave

f

IN = 15kHz

VIN = 80mVp-p sine wave

IN = 1kHz

f
VIN = 80mVp-p sine wave

IN = 1kHz sine wave

f
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 – +1mA
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 V

CC1, VCC2 VIN = 0mVp-p

fIN = 8.2kHz
ICCR Operating circuit current V

CC1, VCC2

VIN = 68mVp-p sine wave

fOSC = 1MHz
fOSC Oscillation frequency RCP COSC = 33pF

TOW Output pulse width RCP f
TOD Intra-output delay time RDT, RCP f

OSC = 1MHz
OSC = 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 V

CC = 5V.

Test

circuit

– 0.3V
2
2
2
2
2
2
2
2
1

3

3

3

3
4

4
5
5
–

4
5

5
6
6
–
1

1

1
7
7
7

Min. Typ. Max.

CC – 0.7VCC V

–
–

3.8

3.2

-10

-80

-10

-250

2.3
18

18

7

2
–

0.3

0.2

-0.7

-0.15

-1.2
–

4.5

2.5

1.5

0.5
–

–

0.75
15

7

0.5

Limits

–
–
–
–
–
–
–
–

2.5
20

20

10

–
–

–

0.45

-0.45
–

–
–

–
–
–
–

0.7

1.9

–

16

8
–

∗

0.2

0.4

+10

-10
+10

-50

2.7
24

24

14

-0.3

0.7

-0.2

0.15

1.2

0.5

3.5

2.7

1.5

1.0

2.4

1.5
17

V
V
V

–

V

–

µA

mA

µA
µA

V

Double

Double

kΩ

V

–

P-P

µA

–

µA

V
V
V

V
V

–

V
V
V
V

mA

mA

MHz

µs

9

µs

–

µs

MITSUBISHI <CONTROL / DRIVER IC>

M56710FP

F2F MAGNETIC STRIPE ENCORDING CARD READER

TEST CIRCUIT: On the following drawing, COSC = 33pF, RPK=470Ω, CPK = 0.033µF, CNF = 470pF, CVR = 1µF

1. Testingof VREF, ICCW, ICCR, fOSC

VCC

ICCW
ICCR

A

VIN, fIN

VREF

RCP

RPK

CPK

V

CNF

LDI

F2F
PKO
PKI
AMP
HD2

HD1
VRF
GND

TOW

CC1

V
VCC2

CX1
CX2

IB1
IB2

INV

CLS
RDT
RCP

C

OSC

Oscilloscope

fOSC =

fosc

16

TOW

2. Testingof VOL,VOH,IIL,IIH,IIT+

VCC

LDI

F2F
PKO
PKI
AMP
HD2

HD1

CVR

VRF
GND

Note: Short the IB1 and IB2 to the GND when those

V

CC1

VCC2

CX1
CX2

IB1
IB2

INV

CLS
RDT
RCP

C

OSC

pins are not used for testing.

VOL
VOH

I
IIL
IIT+

A

V

IH

VI

IOL
IOH

3. Testingof GV11, GV21, RIN1, VOPP1 4. Testingof IIH2, IIL2, VPKO

VCC

THD meter

VM.AMP

VOPP1

GV11 =

RIN1 =

(ON at VOPP1)

(OFF at RIN)

V

10kΩ

VIN, IIH

VM.AMP

IN

V

2VM.AMP

GV11·VIN - VM.AMP

RPK

CPK

CNF

10kΩ

CVR

x 10(kΩ)

LDI

F2F

PKO
PKI
AMP
HD2
HD1
VRF
GND

CC1

V
VCC2

CX1
CX2

IB1
IB2

INV

CLS
RDT
RCP

LDI

CVR

F2F
PKO
PKI
AMP
HD2

HD1
VRF
GND

C

OSC

VM.F2F
VM.PKO

IPKI

V

IIH2
IIL2

IIL2 is PKI input current providing VM.F2F < 0.5V.
IIH2 is PKI input current providing VM.F2F > 4.5V.
VPKO = VM.PKO - VREF

CC1

V
VCC2

CX1
CX2

IB1
IB2

INV

CLS

RDT

RCP

VCC

C

OSC

MITSUBISHI <CONTROL / DRIVER IC>

(

)

(

)

KCLK

M56710FP

F2F MAGNETIC STRIPE ENCORDING CARD READER

5. Testingof VTH+2, VTH-2, VOL3, VOH3

V
VCC2

CX1
CX2

IB1
IB2

INV

CLS
RDT
RCP

VTH+2 = VREF-VPKI­VTH-2 = VREF-VPKI+

ON at VOL3 and VOH3

IF2F

VM.F2F

V

VCC

VPKI

“H”

VM.F2F

VOL3

VOH3

VPKI

“L”

0V

5kΩ

CVR

5kΩ

LDI

F2F
PKO
PKI
AMP
HD2

HD1
VRF
GND

VPKI+
VPKI-

CC1

6. Testingof VTH+4, VTH-4

V

CC

COSC

VLDI

VCC

VLDI

“H”

VM.CLS

“L”

LDI

F2F
PKO
PKI
AMP
HD2

HD1
VRF
GND

VTH+4
VTH-4

0V

V

CC1

VCC2

CX1
CX2

IB1
IB2

INV

CLS
RDT
RCP

V

CC

VM.CLS

V

7. Testingof TOW, TOD, TNW

V

CC1

VCC2

CX1
CX2

IB1
IB2

INV

CLS
RDT
RCP

Logic pattern generator

CVR

5kΩ

LDI

F2F
PKO
PKI
AMP
HD2

HD1
VRF
GND

VCC

Oscilloscope

ON at TNW

CL

fosc duty

50%

RCP

RDD

V
INV

0V

RCP

TOW

TOD TOD

CC

Noise input

TNW

TNW, a negative noise put into INV
input, is the maximum time interval not
considered INV input.

APPLICATION EXAMPLE

MITSUBISHI <CONTROL / DRIVER IC>

F2F MAGNETIC STRIPE ENCORDING CARD READER

When setting the glance-over bit to 16 bits to let it be “L” active output

5V

VCC1

1

20LDI

M56710FP

RPF

CPK

CVR

CNF

RPK

2

3

F2F

4

PKO

5

PKI

6

AMP

HD2

7

HD1

8

VRF

9

GND RCP

10

V

CC2

CX1

CX2

IB1

IB2

INV

CLS

RDT

19

18

17

16

15

14

13

12

11

CVC

C

OSC