MITSUBISHI M56710FP

MITSUBISHI <CONTROL / DRIVER IC>
M56710FP
F2F MAGNETIC STRIPE ENCORDING CARD READER
DESCRIPTION
PIN CONFIGURATION (TOP VIEW)
The M56710FP is a semiconductor integrated circuit of BiCMOS
structure having an F2F demodulator function for magnetic card
reader.
Read control input
FEATURES
LDI → 1
20
VCC1 Power supply
19
VCC2 Power supply
18
CX1 Oscillation capacitor
4
17
CX2 Oscillation capacitor
Noise filter PKO
Differentiator input
PKI → 5
Amplifier output AMP ← 6
Amplifier (–) input HD2 → 7
APPLICATION
M56710FP
2
F2F output F2F ← 3
NC
● 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
Standard voltage VRF
output
Grounding GND
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.
12 → RDT Read data output
10
11 → RCP Read clock output
NC: no connection
• 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
Amplifier (-) input HD2 7
Sensitivity
setting
OP1
signal output
9
• 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”.
Amplifier Differentiator
Noise filter
output
input
PKO
AMP
PKI
5
6
4
Amplifier (+) input HD1 8
14 ← INV Invert input
Outline 20P2N-A
• 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.
BLOCK DIAGRAM
15 ← IB2 Ignore bit 2
13 → CLS Card travelling
Amplifier (+) input HD1 → 8
Magnetic card reader
16 ← IB1 Ignore bit 1
OP2
Reference voltage output VRF 9
F2F output
F2F
3
Waveform
shaping
20 VCC1
Power supply
19 VCC2
Power supply
14 INV
Invert input
13 CLS
Card travelling signal output
12 RDT
Read data output
11 RCP
Read clock output
Reference
voltage
circuit
Read control input LDI
Ignore bit 2 IB2
1
Control circuit
15
Ignore bit 1 IB1 16
5TOSC
1/5
Oscillation capacitor CX2 17
Oscillation capacitor CX1 18
Oscillation
circuit
11 bit
downcounter
10 GND
TOSC
1/7
7TOSC
11 bit
upcounter
MITSUBISHI <CONTROL / DRIVER IC>
M56710FP
F2F MAGNETIC STRIPE ENCORDING CARD READER
I/O CIRCUIT
1
2
LDI, IB1, IB2 input circuit
INV input circuit
VCC2
VCC2
LDI
IB1
IB2
INV
GND
3
GND
CLS, RDT, RCP output circuit
VCC2
CLS
RDT
RCP
GND
PIN FUNCTION DESCRIPTION
Pin
No.
1
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Pin
name
LDI
F2F
PKO
PKI
AMP
HD2
HD1
VRF
GND
RCP
RDT
CLS
INV
IB2
IB1
CX2
CX1
VCC2
VCC1
Name
Function
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 COSC between CX1 and CX2 to set oscillation frequency.
Connect capacitor COSC 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).
MITSUBISHI <CONTROL / DRIVER IC>
M56710FP
F2F MAGNETIC STRIPE ENCORDING CARD READER
GLANCE-OVER BIT SETTING AND TIMING BY IB1 AND IB2
IB2 input
IB1 input
Number of
glance-over bits
L
L
4
L
H
8
H
L
16
H
H
—
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).
—
• IB2, IB1: “L”, “L”
TBO : Reference bit
x
1
2
3
4
F2F
LDI
BIC
full count
CLS
About 14300 TOSC
OPERATING TIMING DIAGRAM
IB2, IB1 : “L”, “L” INV : “H”
HD2 - HD1
F2F
TB0
TBn
TBn+
LDI
Reference bit
5/7TBn
(5/7)
Bit 1/0 discrimination signal
CLS
RCP
RDT
0
0
0
0
1
0
1
1
0
RDT data is output 1 bit behind F2F data.
HD2 - HD1
F2F
LDI
(5/7)
CLS
RCP
RDT
0
0
0
0
1
0
0
0
0
0
0
1
0
1
1
0
0
MITSUBISHI <CONTROL / DRIVER IC>
M56710FP
F2F MAGNETIC STRIPE ENCORDING CARD READER
ABSOLUTE MAXIMUM RATINGS (Ta = -20 – 75°C, unless otherwise noted)
Symbol
VCC
VI
VI
IO
VID
Topr
Tstg
Parameter
Conditions
VCC1, VCC2
LDI, IB1, IB2, INV
HD1, HD2
CLS, RDT, RCP
Between HD2 and HD1 pins
Supply voltage
Input voltage
Input voltage
Output voltage
Differential input voltage
Operating temperature
Storage temperature
Ratings
Unit
-0.3 – +6.5
-0.3 – VCC+0.3
-0.3 – VCC+0.3
-10 – +10
-1.2 – +1.2
-20 – 75
-55 – 125
V
V
V
mA
V
°C
°C
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
VCC
VI
VIH
VIL
IOH
IOL
VIN
fIN
fOSC
COSC
COSC
RPK
CPK
CNF
RPF
–
CVC
CVR
Parameter
Supply voltage
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
Test conditions
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
fOSC ∞ 1/COSC
Min.
4.0
0
0.8VCC
0
-0.5
0
3
0.3
0.2
25
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
0.8
Limits
Typ.
5
33
470
0.033
220
4.7
–
0.1
1
Unit
Max.
V
5.5
V
VCC
V
VCC
V
0.2VCC
mA
0
mA
5
mVp-p
80
kHz
15
MHz
2
pF
100
pF
Ω
µF
pF
MΩ
2
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
VTH
Test conditions
Parameter
Threshold voltage
IB1, IB2, INV
VCC = 4 – 5.5V
IOL = 10µA
VCC = 4V
IOL = 5mA
IOH = -10µA
VCC = 4V
IOH = -0.5mA
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
Test
circuit
Limits
Typ.∗ Max.
–
0.7VCC
0.2
–
0.4
–
–
–
–
–
+10
–
-10
–
+10
–
-50
–
2.7
2.5
Unit
–
2
2
2
2
2
2
2
2
1
Min.
0.3VCC
–
–
3.8
3.2
-10
-80
-10
-250
2.3
3
18
20
24
Double
V
V
V
V
V
µA
mA
µA
µA
V
VOL
“L” output voltage
CLS, RDT, RCP
VOH
“H” output voltage
CLS, RDT, RCP
IIL
IIL
IIH
IIT+
VREF
“L” input current
“L” input current
“H” input current
Positive threshold current
Reference voltage
LDI, IB1, IB2
INV
LDI, IB1, IB2, INV
INV
VRF
GV11
Voltage gain 1
OP1
GV21
Voltage gain 2
OP1
fIN = 15kHz
VIN = 80mVp-p sine wave
3
18
20
24
Double
RIN1
Input resistance
OP1
fIN = 1kHz
VIN = 80mVp-p sine wave
3
7
10
14
kΩ
VOPP1
Maximum output voltage
OP1
3
2
–
–
VP-P
IIL2
IIH2
VTH+2
VTH-2
VTHD2
“L” sensitivity current
“H” sensitivity current
Positive threshold voltage
Negative threshold voltage
Threshold differential voltage
PKI – F2F
PKI – F2F
PKI – F2F
PKI – F2F
PKI – F2F
4
4
5
5
–
–
0.3
0.2
-0.7
-0.15
–
–
0.45
-0.45
–
-0.3
–
0.7
-0.2
0.15
µA
µA
V
V
V
VPKO
Pin voltage range
PKO
4
-1.2
–
1.2
V
VOL3
VOH3
VTH+4
VTH-4
VHY4
ICCW
“L” output voltage
“H” output voltage
Positive threshold voltage
Negative threshold voltage
Hysterisis width
Standby circuit current
F2F
F2F
LDI
LDI
LDI
VCC1, VCC2
5
5
6
6
–
1
–
4.5
2.5
1.5
0.5
–
–
–
–
–
–
0.7
0.5
–
3.5
2.7
1.5
1.0
V
V
V
V
V
mA
ICCR
Operating circuit current
VCC1, VCC2
1
–
1.9
2.4
mA
fOSC
TOW
TOD
TNW
Oscillation frequency
Output pulse width
Intra-output delay time
Input noise width
RCP
RCP
RDT, RCP
INV
1
7
7
7
0.75
15
7
0.5
–
16
8
–
1.5
17
9
–
MHz
µs
µs
µs
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 – +1mA
VPKI = 0V, IF2F = 0.5mA
VPKI = 5V, IF2F = -0.5mA
(VTH+4) - (VTH-4)
VIN = 0mVp-p
fIN = 8.2kHz
VIN = 68mVp-p sine wave
fOSC = 1MHz
COSC = 33pF
fOSC = 1MHz
fOSC = 1MHz
Note: Min. and max. limits do not represent absolute values.
∗: Typ. limits represent standard values when Ta = 25°C and VCC = 5V.
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. Testing of VREF, ICCW, ICCR, fOSC
2. Testing of VOL, VOH, IIL, IIH, IIT+
VCC
ICCW
ICCR
A
LDI
VCC
LDI
VCC1
VCC2
VCC1
VCC2
PKO
CX2
PKO
CX2
IIH
IIL
IIT+
PKI
IB1
PKI
IB1
A
AMP
IB2
AMP
IB2
HD2
INV
CX1
F2F
F2F
CX1
COSC
CNF
COSC
RPK
CPK
VIN, fIN
V
VREF
INV
HD2
HD1
CLS
HD1
CLS
VRF
RDT
fosc
VRF
RDT
GND
RCP
Oscilloscope
GND
RCP
CVR
VI
VOL
VOH
RCP
fOSC =
TOW
Note: Short the IB1 and IB2 to the GND when those
pins are not used for testing.
16
TOW
3. Testing of GV11, GV21, RIN1, VOPP1
4. Testing of IIH2, IIL2, VPKO
VCC
LDI
VCC
LDI
VCC1
VCC2
F2F
THD meter (ON at VOPP1)
IOL
IOH
V
VCC2
CX1
CNF
VCC1
F2F
CX1
COSC
COSC
PKO
CX2
PKO
CX2
PKI
IB1
PKI
IB1
AMP
IB2
AMP
IB2
RPK
CPK
(OFF at RIN)
VM.AMP
10kΩ
V
VOPP1
10kΩ
HD2
INV
HD1
CLS
VRF
RDT
GND
RCP
CVR
VM.F2F
VM.PKO
V IPKI
IIH2
IIL2
CVR
HD2
INV
HD1
CLS
VRF
RDT
GND
RCP
VIN, IIH
GV11 =
RIN1 =
VM.AMP
VIN
2VM.AMP
x 10(kΩ)
GV11·VIN - VM.AMP
IIL2 is PKI input current providing VM.F2F < 0.5V.
IIH2 is PKI input current providing VM.F2F > 4.5V.
VPKO = VM.PKO - VREF
MITSUBISHI <CONTROL / DRIVER IC>
M56710FP
F2F MAGNETIC STRIPE ENCORDING CARD READER
5. Testing of VTH+2, VTH-2, VOL3, VOH3
6. Testing of VTH+4, VTH-4
VCC
LDI
F2F
VCC1
LDI
VM.F2F
VOL3
VOH3
VCC2
VLDI
CX1
F2F
CX1
COSC
5kΩ
V
VCC1
VCC2
(ON at VOL3 and VOH3)
IF2F
VCC
5kΩ
VPKI
PKO
CX2
PKO
CX2
PKI
IB1
PKI
IB1
AMP
IB2
AMP
IB2
HD2
INV
HD2
INV
HD1
CLS
HD1
CLS
VRF
RDT
VRF
RDT
CVR
GND
RCP
GND
VTH+2 = VREF-VPKIVTH-2 = VREF-VPKI+
VCC
VPKI
0V
VM.CLS
V
VPKI+
VPKI-
VCC
VTH+4
VTH-4
VLDI
“H”
0V
“H”
VM.F2F
“L”
VM.CLS
“L”
RCP
7. Testing of TOW, TOD, TNW
RCP
TOW
VCC
RDD
TOD
LDI
VCC1
CLK
Logic pattern generator
VCC2
F2F
CX1
PKO
CX2
PKI
IB1
AMP
IB2
fosc duty
50%
CLK
HD2
INV
HD1
CLS
VRF
RDT
GND
RCP
Oscilloscope
CVR
Noise input
VCC
INV
0V
RCP
5kΩ
(ON at TNW)
TOD
TNW
TNW, a negative noise put into INV
input, is the maximum time interval not
considered INV input.
MITSUBISHI <CONTROL / DRIVER IC>
M56710FP
F2F MAGNETIC STRIPE ENCORDING CARD READER
APPLICATION EXAMPLE
When setting the glance-over bit to 16 bits to let it be “L” active output
5V
1 LDI
VCC1 20
2
VCC2 19
CVC
3 F2F
CX1 18
4 PKO
CX2 17
5 PKI
IB1 16
6 AMP
IB2 15
7 HD2
INV 14
8 HD1
CLS 13
9 VRF
RDT 12
10 GND
RCP 11
COSC
RPF
CNF
CPK
RPK
CVR