User's Manual

veriCLASS Hardware Specification VP3500 Reader Board, 3500-906
5.2.2
ISO/IEC 14443 Type B Waveforms
The waveforms were measured in accordance to ISO/IEC10373-6 (16.5MHz resonance frequency
of reference PICC).
Table 8: ISO/IEC 14443 Type B Waveforms
Distance 0mm @ 106kbps Distance 7.5mm @ 106kbps
m [%] 11.01 m [%] 10.68
tr [ns] 389 tr [ns] 379
tf [ns] 384 tf [ns] 392
Os [%] 3.28 Os [%] 4.34
Us [%] 3.14 Us [%] 4.18
Distance 12mm @ 106kbps Distance 20mm @ 106kbps
m [%] 10.55 m [%] 9.70
tr [ns] 395 tr [ns] 386
tf [ns] 427 tf [ns] 423
Os [%] 4.32 Os [%] 4.11
Us [%] 4.11 Us [%] 4.05
Note: Measured with modulation conductance setting of 33Hex (ISO/IEC 14443 Type B register #2).
Page 18 of 28
March 2011
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