ATA559001-DBW Atmel, ATA559001-DBW Datasheet - Page 96
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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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14.1
14.1.1
96
Reset and Stand_by
ATA5590
Ramp Up
Figure 14-1
Figure 14-1. Analog Timing Relations at 25°C
After POR has reset the digital circuits, the band gap is started. The band gap needs time for
stabilization. After this time (TBG_Start), the IC can decode the received signals from the reader
correctly.
Table 14-2.
After the oscillator function is enabled, it takes 64 oscillator clocks to enable normal operations.
Based on a 400-kHz oscillator frequency, this takes 160 µs.
Table 14-3.
Parameter
T
T
Signal
POR
Stand_by
POR
BG_STAB
ready = forward_en
Oscillator enable
Band gap ready
Start band gap
Oscillator
Power supply
gives an overview of the analog timing during ramp up.
voltage
Stand_by
Value
< 0.3
0.1
Typical Timing Values for 25°C
Threshold Voltages as a Function of Temperature
POR
Unit
ms
ms
f(field strength)
Comment
50 µs + a variable time which depends on RF field strength
0.3 ms equates to a distance of 4 meters in an anechoic chamber
–40°C
1.25V
1.35V
typ 50 µs
10 µs
typ 100 µs
+25°C
1.15V
1.05V
64 oscillator clocks
+85°C
4817C–RFID–03/07
0.9V
1.0V
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