Datasheet HTOT840 Datasheet (Philips)

TM

HT OT840

HITAG

Product Specification
Revision 1.1

Antenna Tuning Device

November 1996

HTOT840 Rev. 1.1 1996-11-22

Contents

Contents .................................................................................................................... 2

1. General Remarks .................................................................................................. 3

2. Specifications ....................................................................................................... 3

3. Ordering Information............................................................................................4

4. Using the HITAG Antenna Tuning Device........................................................... 5

4.1. Tuning HITAG Long Range Antennas......................................................................6

4.2. Tuning HITAG Proximity Antennas..........................................................................6

Author: Renate Rossoll

Htot840.doc/HS Page 2 of 9

HTOT840 Rev. 1.1 1996-11-22

p

1. General Remarks

For optimal performance HITAG antennas have to be tuned during production, respectively by
start-up or, for service purposes, during operation. The HITAG Antenna Tuning Device is a
very easy to handle and cost effective solution for the tuning of 125 kHz HITAG antennas.
The device is - besides the HITAG antenna training - the optimal complement for antenna
design. The HT OT840 therefore is an unrenouncable tool for everybody who designs,
produces or even uses HITAG antennas.

The HITAG Antenna Tuning Device can be used for tuning HITAG long range as well as
HITAG proximity antennas.

2. Specifications

• temperature range: 0 .. 50°C

• protection class: IP40

• precision at room temperature: measuring current: class 5

measuring phase: class 10

• phase sensitivity: ± 50 parts of scale are ± 50° (for rough tuning of an
antenna with L ≈ 1 mH and Q ≈ 40.)

• connection: three-pole DIN - connectors

100

200

0

mA

0

10

10

20

20

30

40

50

­ca

Htot840.doc/HS Page 3 of 9

degind

30

40

300

50

+

HTOT840 Rev. 1.1 1996-11-22

3. Ordering Information

Type Name Description Ordering Number

HT OT840 HITAG Antenna Tuning Device 9352 341 60122

Htot840.doc/HS Page 4 of 9

HTOT840 Rev. 1.1 1996-11-22

4. Using the HITAG Antenna Tuning Device

The HITAG Antenna Tuning Device is a combined current- and phase measurement device. It
can be used for tuning HITAG long range as well as HITAG proximity antennas. Selection
between long range and proximity is done with the help of a switch.

The tuning device is connected between antenna and read/write device as described in the
following:
The cable with plug (DIN 41524) has to be connected to the read/write device, the antenna
cable is to be connected to the jack (DIN 41524) of the tuning device.

Adapters - if they are necessary - e.g. for connection of a proximity system, can be built up
very easily.

Pin assignment of the DIN connectors:

Pin 1: Ground

Pin 2: Rx (not used for long range antennas)

Pin 3: Tx

Moreover, the cable with one of the two DIN connectors (plugs) can be used to build up an
adapter.
After connection of the Antenna Tuning Device the operation mode (proximity or long range)
has to be chosen with the help of the switch.

Afterwards power supply and read/write device can be switched on.

Htot840.doc/HS Page 5 of 9

HTOT840 Rev. 1.1 1996-11-22

4.1. Tuning HITAG Long Range Antennas

The device has to be switched to long range mode.
The current should be about 200 mA, a tolerance of ± 10 mA is acceptable.

A current below the tolerance limit implies, that the antenna is badly detuned.

If the current is over the upper tolerance limit you should check the output current of the
read/write device. It should be 200 mA ± 10 mA. Otherwise the function of the read/write
device should be checked.

For tuning of the antenna refer to the measured phase. The phase should be 0° ± 15° (at a
current of 200 mA).

• If the phase is too high (direction: inductive) the tuning capacity has to be

decreased.

• If the phase is too low (direction: capacitive) the tuning capacity has to be

increased.

After tuning of the antenna the tuning device should be removed.

4.2. Tuning HITAG Proximity Antennas

The device has to be switched to proximity mode (changing the sensitivity).
For tuning of the antenna refer to the measured phase. The phase should be 0° ± 10°.

• If the phase is too high (direction: inductive) the tuning capacity has to be

decreased.

• If the phase is too low (direction: capacitive) the tuning capacity has to be

increased.

For HITAG proximity systems the current reaches its maximum when the
antenna is tuned exactly. An approximate value for the current is:
60 to 70 mA ± 10 mA.

Htot840.doc/HS Page 6 of 9

HTOT840 Rev. 1.1 1996-11-22

Definitions

Data sheet status

Objective speci ficati on This data sheet contains tar get or goal s peci ficati ons for pr oduct

development.

Preliminary
specification

Product specificati on Thi s data s heet contai ns final produc t spec i fications .

Limiting values

Limiting val ues giv en ar e in ac cor dance w i th the Abs olute Maximum Rati ng Sy stem ( I EC 134) .
Stress above one or m or e of the lim i ting v al ues m ay c ause per m anent dam age to the devi c e.
These are stres s r ati ngs onl y and oper ati on of the devic e at these or at any other c onditi ons
above those given in the Char ac ter is ti cs sec tion of the speci ficati on is not i mpl i ed. Expos ur e to
limiti ng val ues for ex tended peri ods m ay affect device r eli ability.

Application information

Where application information is given, it is advisory and does not form part of the
specification.

This data sheet contai ns prel imi nary data; suppl ementar y data may be
published later .

Life support applications

These products are not designed for use in life support appliances, devices, or systems where
malfunction of these products can reasonably be expected to result in personal injury. Philips
Semiconductors customers using or selling these products for use in such applications do so on
their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting
from such improper use or sale.

Htot840.doc/HS Page 7 of 9

Philips Semiconductors - a worldwide company

Argentina
Australia

Tel. [phone], Fax. [phone]

Austria

Tel. [phone], Fax. [phone]

Belarus

220050 MINSK, Tel. [phone], Fax. [phone]

Belgium
Brazil
Bulgaria

51 James Bourchier Blvd., 1407 SOFIA Tel. [phone], Fax. [phone]
Tel. [phone], Fax. [phone]

Canada

Tel. [phone]

China/Hong Kong

72 Tat Chee Avenue, Kowloon Tong, HONG KONG,
Tel. [phone], Fax. [phone] Tel. [phone], Fax. [phone]

Colombia
Czech Republic
Denmark

Tel. [phone], Fax. [phone] JOHANNESBURG, P.O.Box 7430 Johannesburg 2000,

Finland

Tel. [phone], Fax. [phone]/xxx

France

Tel. [phone], Fax. [phone] Tel. [phone], Fax. [phone]

Germany

Tel. [phone], Fax. [phone] Tel. [phone], Fax. [phone]

Greece

Tel. [phone], Fax. [phone] Tel. [phone], Fax. [phone]

Hungary
India

Worli, MUMBAI 400018, Tel. [phone], Fax. [phone]

Indonesia
Ireland

Tel. [phone], Fax. [phone]

Israel

Tel. [phone], Fax. [phone] Tel. [phone], Fax. [phone]

Italy

20124 MILANO, Tel. [phone], Fax. [phone] Tel. [phone], Fax. [phone]

Japan

Tel. [phone],Fax. [phone] 252042 KIEV, Tel. [phone], Fax. [phone]

Korea

Tel. [phone], Fax. [phone] MIDDLESEX UM3 5BX, Tel. [phone], Fax. [phone]

Malaysia

Tel. [phone], Fax. [phone] Tel. [phone]

Mexico

Tel. [phone]

Middle East

: see South America

: 34 Waterloo Road, NORTHRYDE, NSW 2113, Tel. [phone], Fax [phone]

: Computerstraße 6, A-1101 WIEN, P.O.Box 213, Tel. [phone], Fax. [phone]

: Hotel Minsk Business Centre, Bld. 3, r.1211, Volodarski Str. 6, Tel. [phone], Fax. [phone]

: see The Netherlands 106 Valero St. Salcedo Village, P.O.Box 2108 MCC, MAKATI,

: see South Africa Metro MANILA, Tel. [phone], Fax. [phone]

: Philips Bulgaria Ltd., Energoproject, 15th floor,

: Philips Semiconductors/Components,

: 501 Hong Kong Industrial Technology Centre, Tel. [phone], Fax. [phone]

: see South America

: see Austria

: Prags Boulevard 80, PB 1919, DK-2300 COPENHAGEN S,

: Sinikalliontie 3, FIN-02630 ESPOO, Tel. [phone], Fax. [phone]

: 4 Rue du Port-aux-Vins, BP 317, 92156 SURESNES Cedex, 04552-903 Sao Paulo, SAO PAULO - SP, Brazil,

: Hammerbrookstraße 69, D-20097 HAMBURG,

: No. 15, 25th March Street, GR 17778 TAVROS/ATHENS,

: see Austria

: Philips INDIA Ltd., Shivsagar Estate, A Block, Dr. Annie Besant Rd. Tel. [phone], Fax. [phone]

: see Singapore Chung Hsiao West Road, Sec. 1, P.O.Box 22978,

: Newstead, Clonskeagh, DUBLIN 14, TAIPEI 100, Tel. [phone], Fax. [phone]

: RAPAC Electronics, 7 Kehilat Saloniki St., TEL AVIV 61180, 209/2 Sanpavuth-Bangna Road Prakanong, BANGKOK 10260,

: Philips Semiconductors, Piazza IV Novembre 3,

: Philips Bldg. 13-37, Kohnan 2-chome, Minato-ku, TOKYO 108,
: Philips House, 260-199, Itaewon-dong, Yonsan-ku, SEOUL,

: No. 76 Jalan Universiti, 46200 PETALING JAYA, Selangor,

: 5900 Gateway East, Suite 200, EL PASO, Texas 79905,

: see Italy

Netherlands

New Zealand

Norway

Philippines

Poland

Portugal
Romania
Russia

Singapore

Slovakia
Slovenia
South Africa

South America

Spain

Sweden

Switzerland

Taiwan

Thailand

Turkey

Ukraine

United Kingdom

United States

Uruguay
Vietnam
Yugoslavia

Tel. [phone], Fax. [phone]

: Postbus 90050, 5600 PB EINDHOVEN, Bldg. VB,

: 2 Wagener Place, C.P.O. Box 1041, AUCKLAND,

: Box 1, Manglerud 0612, OSLO,

: Philips Semiconductors Philippines Inc.,

: Ul. Lukiska 10, PL 04-123 WARSZWA,

: see Spain

: see Italy

: Philips Russia, Ul. Usatcheva 35A, 119048 MOSCOW,

: Lorong 1, Toa Payoh, SINGAPORE 1231,

: see Austria
: see Italy

: S.A. Philips Ltd., 195-215 Main Road Martindale,

: Rua do Rocio 220, 5th floor, Suite 51,

: Balmes 22, 08007 BARCELONA,

: Kottbygatan 7, Akalla, S-16485 STOCKHOLM,

: Allmendstraße 140, CH-8027 ZÜRICH,

: Philips Taiwan Ltd., 2330F, 66,

: Philips Electronics (Thailand) Ltd.,

: Talapasa Cad. No. 5, 80640 GÜLTEPE/ISTANBUL,

: Philips Ukraine, 4 Patrice Lumumba Str., Blg. B, Floor 7,

: Philips Semicond. Ltd., 276 Bath Road, Hayes,

: 811 Argues Avenue, SUNNYVALE, CA94088-3409,

: see South America

: see Singapore

: Philips, Trg N. Pasica 5/v, 11000 BEOGRAD,

Philips Semiconductors, Mikron-Weg 1, A-8101 Gratkorn, Austria Fax: +43 / 3124 /
299 - 270

For all other countries apply to

http://www.semiconductors.philips.com
Building BE-p, P.O.Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax: [phone]

© Philips Electronics N.V. 1996 SCB52
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be

changed without any notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor
imply any license under patent- or other industrial or intellectual property rights.

: Philips Semiconductors, Marketing & Sales Communications, Internet: