Specifications of the HT2 MOA3 S20

Rev. 1.1

1997-08-19

Ht2moa3.doc/HS

Page 19 of 22

7 Characterisation and Test of the Final Transponder

7.1 Characterisation of the Transponder

The parameters recommended to be characterised for the transponder are:

Parameter

Comment

Resonant frequency

Transponder does not modulate

Threshold value

Start of modulation

Threshold value for READ

Command READ_PAGE OK

Threshold value for WRITE

Command WRITE_PAGE OK

For the measurement of these parameters we recommend to use the test equipment available from

SCEMTEC, Marienheide-Rodt, Germany (Transponder Measurement System STM-1).

This device also supports functional testing (besides parameter testing). Therefore it can also be

used as production test equipment for the final transponder test. For further information please

contact Scemtec GmbH.

7.2 Final Test of the Transponder

In addition to the equipment described in the previous chapter Philips Semiconductors offers a

device for a final functional test of transponders, the HITAG

Parameter tests are not supportet by this device.

Basic flow for production and test:

1. Assembly of transponders

2. Functional test and final test of the EEPROM

Since the Keys and Logdata are changed during final test the Configuration and

personalization must take place after the final test. The final test is disabled (not reversible)

by setting the Tag-test mode bit to 0.

For the final test of transponders we recommend to use the

HITAG

Transponder Measurement System STM-1 of Scemtec.