ID Tech Spectrum IIa - Manual (Page 5)

SPECIFICATIONS
MAGNETICS PERFORMANCE CHARACTRISTICS
Media speed: The circuit decodes data reliably at 3 to 50 inches per second (ips).
Card Jitter: The circuit decodes data with bit cell spacing errors up to 15% (30% for subintervals)
at media speeds of 3 to 50 ips.
Low Amplitude Reading: Media with data recording amplitudes below ANSI and ISO
specifi cations can be read. Media amplitudes of 30% (210 bpi) and higher, or 40% (75 bpi) and
higher, can be read at speeds of 10 ips or greater.
Media Specifi cation: Media with magnetic coercivity of 300 through 4000 Oersted can be reliably
read.
DC CHARACTERISTICS
Item Symbol Condition Min Typ Max
Output Low Voltage V
OL
IOL=20 ma 0.5 V
Output High Voltage V
OH
IOL= -3 ma Vcc-0.5V
Supply Current Icc <15 ma
Supply Voltage Vcc 4.5V 5 V 5.5 V
CLOCK CHARACTERISTICS *
Item Symbol Min Typ Max
Clock Pulse Width T
w
21.3 μ sec. 32 μ sec. 53.3 μ sec.
* See Appendix C: “ Output Signal Description and Timing Diagram”
SMART CARD CHARACTERISTICS
ICC Contacts: Meet or exceed ISO 7816 and EMV standards/specifi cations.
ICC Card Reliability: Contacts are gold plated and exceed EMV requirements for minimum
resistance over life.
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