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INTEGRATED CIRCUITS
DATA SHEET
HTRM800 family
HITAG long range reader module hardware
Product specification |
2001 Oct 04 |
Supersedes data of 1999 Jan 01
File under Integrated Circuits, IC11
Philips Semiconductors Product specification
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HITAG long range reader module |
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HTRM800 family |
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hardware |
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CONTENTS |
8 |
ELECTRICAL SPECIFICATIONS |
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1 |
FEATURES |
9 |
MECHANICAL SPECIFICATIONS |
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10 |
APPLICATION INFORMATION |
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2 |
APPLICATIONS |
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3GENERAL DESCRIPTION
4ORDERING INFORMATION
5BLOCK DIAGRAM
6PINNING
6.1ST1 connector
6.2ST2 connector
7 |
FUNCTIONAL DESCRIPTION |
7.1System overview
7.1.1Transponders
7.1.2Antenna
7.1.3Host system
7.1.4I/O functions
7.1.5Power supply
7.2Reader module software
7.3Reader module hardware
7.3.1Microcontroller
7.3.2Interface microcontroller to host
7.3.3Transmitting part
7.3.4Receiving part
7.3.5Digital signal processing unit
7.3.6Periodic disturbers
7.3.7Voltage regulating unit
7.3.8Standby mode
7.3.9Behaviour with HITAG 1 transponders
7.3.10Behaviour with HITAG 2 transponders
7.4Postal approval
7.5Operating security
7.5.1Anticollision mode
7.5.2Monitoring the supply voltage
7.5.3Antenna rupture and antenna short-circuit
7.6Security considerations
7.6.1Data privacy
10.1Metallic environment and interferences
10.2Distance between two antennas
10.3External power supply
10.4Possible sources of errors by connecting the HTRM800
10.5Building HITAG long range antennas
10.5.1Basics
10.5.2Recommended antenna cable and length
10.5.3Tuning of the antenna current
10.5.4Tuning of the antenna phase
10.5.5HITAG antenna tuning device
10.5.6Antenna malfunction indication
10.5.7Additional remarks
10.6Antenna arrangements
11SURVEY OF REFERENCED DOCUMENTS
12DATA SHEET STATUS
13DEFINITIONS
14DISCLAIMERS
2001 Oct 04 |
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Philips Semiconductors |
Product specification |
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HITAG long range reader module
HTRM800 family
hardware
1 FEATURES
∙Multi-tag operation (anticollision)
∙Read and write distances up to 1000 mm
∙Digital signal processor to reduce noise sensitivity
∙Communication with all HITAG transponders and various other 125 kHz transponders
∙Data encryption and key handling
∙Easy system integration
∙Three interface options
∙Meets all requirements for CE and EMI approval.
2 APPLICATIONS
∙Universal and flexible reader module for long range systems.
3 GENERAL DESCRIPTION
HITAG(1) is the name of one of the universal and powerful product lines of our 125 kHz family. The contactless read and write system that works with passive transponders is suitable for various applications.
(1)HITAG - is a trademark of Philips Semiconductors Gratkorn GmbH.
Inductive coupling helps you to achieve operating ranges up to 1000 mm and the use of cryptography guarantees highest data security.
Anticollision mode, which is used only in long range operation, allows you to handle several transponders that are within the communication field of the antenna at the same time, thus achieving highest operating security and permitting to handle several data transfers quickly and simultaneously. In this context anticollision becomes an essential element of applications such as ski-ticketing and long range access control. With applications of that type it will always happen that several transponders arrive in the communication field of the antenna at the same time.
4 ORDERING INFORMATION
PART NUMBER |
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ORDER CODE (12NC) |
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HTRM800/AED |
HITAG long range reader module RS232 |
9352 338 40122 |
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HTRM800/CED |
HITAG long range reader module RS485 |
9352 338 50122 |
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HTRM800/EED |
HITAG long range reader module CMOS |
9352 338 60122 |
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2001 Oct 04 |
3 |
Philips Semiconductors |
Product specification |
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HITAG long range reader module
HTRM800 family
hardware
5 BLOCK DIAGRAM
handbook, full pagewidth |
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125 kHz |
AMPLIFIER |
VOLTAGE |
ANT |
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LIMITER |
C |
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FILTER |
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L |
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DEMODULATOR |
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GND |
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LINE DRIVER |
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DIGITAL |
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antenna |
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CMOSIN |
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SIGNAL |
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CMOS |
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PROCESSOR |
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CMOSOUT |
OPTIONAL |
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INT1 |
RS485 |
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CMIN |
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INT2 |
OPTIONAL |
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MICRO- |
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CMOUT |
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RXD |
RS232 |
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CONTROLLER |
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TXD |
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+15 V IN |
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CORE MODULE |
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VOLTAGE |
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HTCM400 |
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GND |
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HTRM800 |
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REGULATOR |
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−15 V IN |
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MGU417 |
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Fig.1 |
Block diagram. |
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6 PINNING
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R72 |
HTRM800 |
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ST1 |
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10 |
11 |
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ST2 |
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2 |
ANT |
1 |
20 |
1 |
GND |
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MGU418 |
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Fig.2 |
Pin assignment. |
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2001 Oct 04 |
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4 |
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Philips Semiconductors |
Product specification |
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HITAG long range reader module
HTRM800 family
hardware
6.1ST1 connector
SYMBOL |
PIN |
TYPE(1) |
DESCRIPTION |
−15VIN |
1 |
P |
DC supply voltage (−15 V) |
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GND |
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P |
ground |
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+15VIN |
3 |
P |
DC supply voltage (+15 V) |
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GND |
4 |
P |
ground |
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RXD |
5 |
I |
serial interface input; RS232 level |
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GND |
6 |
P |
ground |
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CMOSIN |
7 |
I |
serial interface input; CMOS level (optional) |
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INT1 |
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I/O |
serial interface input and output 1; RS485 level (optional) |
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CMIN |
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I |
core module input; general purpose |
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CMOUT |
10 |
O |
core module output; general purpose |
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GND |
11 |
P |
ground |
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GND |
12 |
P |
ground |
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INT2 |
13 |
I/O |
serial interface input and output 2; RS485 level (optional) |
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CMOSOUT |
14 |
O |
serial interface output; CMOS level (optional) |
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GND |
15 |
P |
ground |
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TXD |
16 |
O |
serial interface output; RS232 level |
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GND |
17 |
P |
ground |
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+15VIN |
18 |
P |
DC supply voltage (+15 V) |
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GND |
19 |
P |
ground |
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−15VIN |
20 |
P |
DC supply voltage (−15 V) |
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Note
1. P = power supply, O = output and I = input.
6.2ST2 connector
SYMBOL |
PIN |
DESCRIPTION |
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GND |
1 |
ground |
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ANT |
2 |
antenna output and input |
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2001 Oct 04 |
5 |
Philips Semiconductors |
Product specification |
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HITAG long range reader module
HTRM800 family
hardware
7 FUNCTIONAL DESCRIPTION
handbook, full pagewidth |
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HITAG 1 |
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POWER |
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transponders |
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SUPPLY |
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antenna |
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HOST |
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HTRM800 |
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SYSTEM |
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I/O FUNCTIONS |
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HITAG 2 |
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transponder |
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MGU419 |
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Fig.3 System overview.
7.1System overview
The HITAG long range reader module (see Fig.3) is a part of a complete Radio Frequency Identification (RFID) system which consists of:
∙Transponders
∙Antenna
∙Host system
∙I/O functions
∙Power supply.
7.1.1TRANSPONDERS
7.1.5POWER SUPPLY
The HTRM800 must be supplied from an external power supply with +15 V and −15 V (see Section 10.3).
7.2Reader module software
Software command names mentioned in this data sheet are fully described in document “HTCM400, HTRM440 Family, HTRM800 Family Interface Protocol Reader - Host”.
7.3Reader module hardware
7.3.1MICROCONTROLLER
The HTRM800 can communicate with transponders based on Philips HITAG 1 and HITAG 2.
7.1.2ANTENNA
The antenna is an important part of the HITAG long range system. The antenna must provide energy and data transmission between the reader module and transponder.
7.1.3HOST SYSTEM
The connection to the host system (e.g. microcontroller or PC) is a serial interface on RS232 level for data transmission.
7.1.4I/O FUNCTIONS
One line of the HTRM800 is wired as input from e.g. a switch and one line as output to drive a LED.
The microcontroller is placed on the HITAG core module (see Fig.1) and processes the protocol for the communication between the transponders and the reader module. The interface signals are converted so that the transponders are able to process them and the outgoing signals from the transponders are converted into interface-compatible signals.
The second essential microcontroller function is its control function. The microcontroller activates and deactivates the transmitter and switches the receiver between the modes for the different transponders reception.
Additional functions of the microcontroller are controlling the standby mode of the amplifier, detection of detuned or broken antennas (antenna malfunction) and controlling of the input and output for general purpose.
2001 Oct 04 |
6 |
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