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EM4022V20WS11 Datasheet(PDF) 1 Page - EM Microelectronic - MARIN SA |
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EM4022V20WS11 Datasheet(HTML) 1 Page - EM Microelectronic - MARIN SA |
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1 / 15 page  Copyright 2002, EM Microelectronic-Marin SA 1 www.emmicroelectronic.com EM MICROELECTRONIC - MARIN SA EM4022 Multi Frequency Contactless Identification Device Anti-Collision compatible with BTG's Supertag Category Protocols Description The EM4022 (previously named P4022) chip implements patented anti-collision protocols for both high frequency and low frequency applications. It is even possible to identify transponders with identical codes, thereby making it possible to count identical items. The chip is typically used in “passive” transponder applications, i.e. it does not require a battery power source. Instead, it is powered up by an electromagnetic energy field or beam transmitted by the reader, which is received and rectified to generate a supply voltage for the chip. A pre- programmed code is transmitted to the reader by varying the amount of energy that is reflected back to the reader. This is done by modulating an antenna or coil, thereby effectively varying the load seen by the reader. Typical Applications Access control Animal tagging Asset control Sports event timing Licensing Electronic keys Auto-tolling Features Implements all BTG anti-collision protocols: Fast SWITCH-OFF, SLOW-DOWN, and FREE-RUNNING Can be used to implement low frequency inductive coupled transponders, high frequency RF coupled transponders or bi-frequency transponders Reading 500 transponders in less than one second for high frequency applications Factory programmed 64 bit ID number Data rate options form 4 kbit/s to 64 kbit/s Manchester data encoding Any field frequency: Typically 125 kHz, 13.56 MHz inductive and 100 MHz to 2.54 GHz RF Data transmission done by amplitude modulation Trimmed 110 pF ± 3% on-chip resonant capacitor On-chip oscillator, rectifier and voltage limiter Low power consumption Low voltage operation : down to 1.5 V at ambient temperature -40 to +85 °C operating temperature range Pin Assignment 1 2 38 9 10 11 57 EM4 022 46 Fig. 1 Pad N° Name Function 1 XCLK external test clock input 2VDD positive supply 3 M connection to antenna 4MTST test output 5 COIL1 Coil terminal 1 6 COIL2 Coil terminal 2 7VSSTST negative test supply output 8VSS negative supply 9 GAP GAP input 10 SI Serial test data input (pull down) 11 TMC Test mode control (pull down) |
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