H4001PCB [EMMICRO]
READ-ONLY CONTACTLESS IDENTIFICATION DEVICE; READ- ONLY接触式识别装置
| 型号： | H4001PCB |
| 厂家： | 
EM MICROELECTRONIC - MARIN SA |
| 描述： | READ-ONLY CONTACTLESS IDENTIFICATION DEVICE |
| 文件： | 总5页 (文件大小：127K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
®
H4001
EM MICROELECTRONIC-MARIN SA
READ-ONLY CONTACTLESS
IDENTIFICATION DEVICE
Features
Typical Operating Configuration
64 bit memory array laser programmable
Wide dynamic range due to on chip buffer
capacitance & voltage limiter on chip.
Full wave rectifier on chip
Big modulation depth due to a low impedance
modulation device
50'000 baud reading speed at 3 MHz
Very small chip size convenient for implantation
Unsensitive close to metal
Large distance even without resonance capacitor
No external buffer capacitance needed due to low
power consumption
COIL 1
L
C
H4001
COIL 2
Description
The H4001 is a CMOS integrated circuit for use in
transponders. The circuit is powered by an external
coil placed in a magnetic field, and gets its clock from
the same field via one of the coil terminals. The other
coil terminal is affected by the modulator, turning on
and off the modulation current in order to send back
the 64 bits of information contained in a factory
pre-programmed memory array.
Typical value of inductance at 125 KHz is 2 mH
The capacitor is adjusted to the resonance
Fig. 1
The programming of the chip is performed by laser
fusing of polysilicon links in order to store a unique
code on each chip.
Pin Assignment
The serial output data string contains a 9 bits header,
40 bits of data, 14 parity bits, and 1 stop bit.
COIL 2
Due to the low power consumption of the logic core,
no supply buffer capacitor is required. Only an external
coil is required to obtain the chip function. A parallel
capacitor adjusted with the coil to obtain resonnance,
will increase the read distance.
COIL 1
Applications
Industrial transponder
Animal transponder
ID Cards
COIL 1
COIL 2
coil terminal/ clock input
coil terminal/ data transmisssion
Serial Number Identification ROM
Fig. 2
1
®
H4001
EM MICROELECTRONIC-MARIN SA
Handling Procedures
Absolute Maximum Ratings
This device has built-in protection against high static
voltages or electric fields; however, due to the unique
properties of this device, anti-static precautions should be
taken as for any other CMOS component.
Parameter
Symbol Condition
Maximum AC peak current
induced on COIL1 and COIL2
Icoil 30 mA
Unless otherwise specified proper operation can only
occur when all terminal voltages are kept within the supply
voltage range.
Maximum storage temperature Tstoremax +200 °C
Minimum storage temperature Tstoremin
- 55 °C
Unused inputs must always be tied to a defined logic
voltage level.
Electrostatic discharge
maximum to MIL-STD-883C
method 3015
VESD
750 V
Operating Conditions
Table 1
Parameter
Symbol Min Typ Max Unit
Operating Temperature
TA
Vcoil
fcoil
-40
+85
°C
Stresses above these listed maximum ratings may
cause permanent damage to the device. Exposure
AC Supply Voltage
Supply Frequency
3.5
Vpp
beyond specified operating conditions
device reliability or cause malfunction.
may affect
50 130 400 KHz
Table 2
Electrical Characteristics
Vcoil = 3.5Vpp ±5%
fcoil =130KHz Sine Wave
TA = 25°C unless otherwise specified
Parameter
Symbol
Test Conditions
Min
Typ.
Max
Unit
LM310
COIL1
COIL2
1N4148
10 KW
Demodulated Voltage
Udemod
0.25
VAC
R
10 nF
Manchester : R = 3 KW
U
= 3.5 Vpp
COIL
PSK
: R = 820W
Dynamic Current
Idyn
50
µA
Table 3
Timing Characteristics
VCOIL2 = 0V VCOIL1 = 3.5Vpp Sine Wave
Parameter
Symbol
Min
Typ
Max
400
Unit
Coil Clock frequency
fCOIL
50
kHz
130
Ratio between coil period and bit period
Rmch
Rpsk
Manchester code
PSK
64
16
Table 4
2
®
H4001
EM MICROELECTRONIC-MARIN SA
Timing Waveforms
T
Manchester coded : 64
PSK version : 16
OC
T
T
OC
OC
COIL1
BIT n
BIT n+1
BIT n+2
Serial Data Out
Fig. 3
Manchester coded version
1
2
3
4
5
6
7
8
9
10
11
12
62
63
64
1
2
3
Bit Number
Serial Data Out
Modulation Control
MODULATION CONTROL "LOW" MEANS HIGH CURRENT ON COIL2
Fig. 4
PSK version
Serial Data Out
COIL1
Modulation Control
"0" ON SERIAL OUT
"1" ON SERIAL OUT
Fig. 5
3
®
H4001
EM MICROELECTRONIC-MARIN SA
Block Diagram
CLOCK
EXTRACTOR
Logic
Clock
COIL_1
AC1
FULL WAVE
RECTIFIER
MEMORY
ARRAY
SEQUENCER
AC2
COIL_2
Serial
Data out
DATA
MODULATOR
DATA
ENCODER
Modulation
Control
Fig. 6
Functional Description
Full Wave Rectifier
The AC input induced in the external coil by an incident magnetic field is rectified by a Graetz bridge
Memory Array
The H4001 contains 64 bits divided in five groups of information. 9 bits are used for the header, 10 row parity bits
(P0 - P9), 4 column parity bits (PC0 - PC3), 40 data bits (D00 - D93), and 1 stop bit set to logic 0.
1
1
1
1
1
- 9 Bits Header
1
1
1
1
D00 D01 D02
D10 D11 D12
D20 D21 D22
D30 D31 D32
D40 D41 D42
D50 D51 D52
D60 D61 D62
D70 D71 D72
D80 D81 D82
D90 D91 D92
D03 P0
D13 P1
D23 P2
D33 P3
D43 P4
D53 P5
D63 P6
D73 P7
D83 P8
D93 P9
- 4 data bits & associated even row parity bit
8 Version bits or
Customer ID
32 Data Bits
allowing 4 billion
of combinations
PC0 PC1 PC2 PC3
0
- 4 column even parity bits, NO row parity bit
The header is composed by the 9 first bits which are mask programmed to 111111111. Due to the data and parity
organisation, this sequence can not be reproduced in the data string. The header is followed by 10 groups of 4 data
bits and 1 even row parity bit. Then, the last group consists of 4 even column parity bits without row parity bit.
Bits D00 to D03 and bits D10 to D13 are customer specific identification.
These 64 bits are outputted serially in order to control the modulator used to modify the current at one of the coil
terminals.
When the 64 bits data string is outputted, the output sequence is repeated continuously until power goes off.
4
®
H4001
EM MICROELECTRONIC-MARIN SA
Control Logic
Two mask programmed versions of logic are available. The first one will modulate the amplitude of the magnetic field
with a bit rate corresponding to 64 periods of the field frequency (Manchester coding). The second version is using
half of the field frequency to transmit data by shifting the signal phase (PSK coding).
One of the coil terminals (COIL1 in Fig.6) is used to generate the clock signal for the logic. The output of the clock
extractor drives a sequencer providing all necessary signals to address the Memory Array, and serially output the
data.
PSK version
The serial data output of the Memory array connects the modulation control to the output or inverted output of a
flip-flop which input is the signal from the clock extractor.
When a logic 0 is output, the modulation control signal is changed to the other output of the flip-flop, and when a logic
1 is output, the modulation control signal remains on the same flip-flop output.
Data Modulator
The data modulator is controlled by the signal Modulation Control (see above fig. 4 & 5) in order to induce a high
current on COIL_2 terminal when this signal is at logic 0. This will affect the magnetic field according to the data
stored in the Memory Array.
Package Information
4.0 mm
1.0 mm
PCB
DIP 8 / SO8
COIL2
COIL1
H4001
1206
E M
*
Fig. 7
* Max. thickness depending on utilized capacitor
Ordering Information
The H4001 is available in the following packages
DIP 8-pin package
SO 8-pin package
PCB 2 connections
Chip form and others on request
H4001 8P
H4001 8S
H4001 PCB
EM Microelectronic-Marin SA cannot assume responsibility for use of any circuitry described other than circuitry entirely embodied
in an EM Microelectronic-Marin SA product. EM Microelectronic-Marin SA reserves the right to change the circuitry and specifica-
tions without notice at any time. You are strongly urged to ensure that the information given has not been superseded by a more
up-to-date version.
© 1996 EM Microelectronic-Marin SA 3/96 Rev. E/127
EM Microelectronic-Marin SA CH-2074 Marin, Switzerland,Tel. +41 32 755 51 11, Fax +41 32 755 54 03
5
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