ATAB5278 Atmel, ATAB5278 Datasheet - Page 13

• Manufacturer Part Number: ATAB5278
• Description: BOARD EVAL LF 125KHZ ANT DVR PSV
• Manufacturer: Atmel
• Series: SmartRF®r
• Type: LF Antenna Driverr

Specifications of ATAB5278

• Contents: Board
• Wireless Frequency: 125 KHz
• Interface Type: Serial
• Modulation: ASK, PSK
• Operating Voltage: 8 V to 15 V
• Antenna: External
• For Use With/related Products: ATA5278
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.1
4.2
4.3
4.4
4.5
4.6
4894B–AUTO–06/06
Configuration Register 1
Configuration Register 2
Status Register
Protocol Data
SPI Function
Menu Item Modulation:
Enables to set and to check the configuration of the transmitter with regard to the matter of mod-
ulation (ASK or PSK) and antenna current level. By pull down menu the antenna current is
selectable from 16 steps. By default ASK modulation and antenna current step16 are
configured.
In general, the configuration is executed immediately when the related parameter is selected. So
if checking the actual configuration the displayed content does not change, except when check-
ing it after power on and the menu parameter was different from default before.
Allows to chose the frequency of the prescaler clock output CLKO (8 MHz or 4 MHz.) and also
the data rate of the protocol to be sent from 1, 2, 3, or 4 kbit/s. By default the parameters are set
to CLKO = 4 MHz and Data bitrate = 4 kbit/s.
When checking “Status Register” the state of the transmitter is monitored in terms of communi-
cation, data buffer, over current, open load and over temperature. If a related error occurs the
state is latched and stops transmission of the data protocol. The latched state can be left by exe-
cuting the “Reset Status” button.
Data to be sent are displayed in the “Protocol Data” window performed for the IC specific space
of 192 data bits. The actual data number is indicated by the small window “Protocol bit number”.
By default protocol data are loaded required for LF receiver ATA5282. Independent of that, indi-
vidual data can also be composed in the window setting logical 1 and 0. Further, data sets can
be saved, reloaded and cleared by executing the related symbol buttons at the lower left side of
the menu.
By this function group the IC is controlled in terms of checking the SPI communication replied by
message box, stopping modulation and power down the IC. Once the transmitter is set to power
down the operation can be continued by executing the Check IC button.
Enables three operation modes of LF field transmission.
Note:
• Single:
• Continuous:
• Cont. Carrier Unmodulated carrier is sent continuously as long as a other mode is selected
For Cont. Carrier operation mode combined with maximum antenna current, the matching resistor
on the antenna module requires a higher power rating.
ATAK5278-82 LF Wake-up Demonstrator
or modulation is stopped by Stop Modulator button
Protocol data are sent every time Single button is pressed
Protocol data are sent in loop as long as an other mode is selected or
modulation is stopped by Stop Modulator button
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