TK5552A-PP Atmel, TK5552A-PP Datasheet - Page 11

• Manufacturer Part Number: TK5552A-PP
• Manufacturer: Atmel

Specifications of TK5552A-PP

• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Compliant

8.3.6
8.3.7
8.3.8
8.3.9
8.4
4698B–RFID–08/05
Operating the Transponder IC
Charge Pump
Power-On Reset (POR)
Mode Register
Modulator
This circuit generates the high voltage required for programming the EEPROM.
This circuit delays the IC's functionality until an acceptable voltage threshold has been reached.
This register holds the configuration data bits stored in EEPROM block 0. It is refreshed at the
start of every block read operation.
The modulator encodes the serial data stream shifted out of the selected EEPROM data block
and controls the damping circuit in the AFE. The transponder IC front end supports PSK and
Manchester encoding.
Figure 8-2.
Figure 8-3.
Power-on reset
Start-up
Charge
pump
POR
delay
start-up delay inactive
Loading block 0 (114 FC
Functional Block Diagram
Voltage at Clock-A/Clock-B After Power-on
(rectifier, regulator, clock extractor, ESD protection)
Bit rate generator
1 ms),
Analog front end
Controller
EEPROM memory
Damping on
Bit decoder
Read data with selected
modulation and bit rate
register
Mode
Damping off
TK5552
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