ATA559001-DBW Atmel, ATA559001-DBW Datasheet - Page 20
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ATA559001-DBW
Manufacturer Part Number
ATA559001-DBW
Description
RF Wireless Misc UHF (1kbit r/w anti- collis. Ni-Au)
Manufacturer
Atmel
Datasheet
1.ATA559001-6DSY.pdf
(107 pages)
Specifications of ATA559001-DBW
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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4.4
20
OSI1 Layer Concept
ATA5590
To enable communication in even the worst environments, ATA5590 supports the following
options:
The baud rate is fully controlled by the reader by adjusting the timings in the header section of
the forward and the return header. The baud rate can be adjusted between 5 Kbits/s and
60 Kbits/s.
ATA5590 operates in the following communication modes
• The reader transmits clock ticks to the tags in the RF field. The clock tick receiver circuit
• The time for a notch is not part of any timing calculation, enabling power savings and
• The forward coding is based on a Pulse Interval Encoding (PIE) style.
• The forward baud rate and the rules to distinguish between “0”, “1”, and EOF symbols are
• The return link operates synchronously. As the reader can control the speed and the
• The return link is based on a 2PSK modulation, which means that the imaginary part of the
• The timings of the return link are based on a header section in the beginning of the return
• ATA5590 supports static and dynamic modulation coding techniques to backscatter data. The
• Half duplex communication
• Full duplex communication
tolerates ticks generated by PR-ASK or ASK (m > 0.8) mechanisms. PR-ASK combines high
SNR, a good power transport mechanism, and a lower frequency spectrum compared to ASK
ticks. Therefore, PR-ASK guarantees robustness against noise and blocking from other RF
sources, as well as reliability.
guaranteeing flexibility with regards to different spectrum requirements.
transmitted during a header section by the reader.
modulation ticks of the synchronous return link, this link type has a higher SNR than an
asynchronous link.
input impedance changes mainly. This has a positive influence on supply voltage for the tag
IC, and also on the tolerated noise floor of the system.
link. During this header section, the reader transports timing information, which is used in the
return link.
dynamic coding style is able to shift the modulation edges to get a better spectrum or to shift
the edge away from the synchronization tick.
– Static modulation coding: NRZI coding
– Dynamic modulation coding:
– Soft NRZI coding
– FM0 coding
– 3phase1 coding
– During the forward link if the synchronous condition is not valid
– During the forward link if the synchronous condition is valid
– During the deterministic-arbitration process
– During the return link
4817C–RFID–03/07
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