U3280M_07 Datasheet, PDF (2/21 Pages) ATMEL Corporation – Transponder Interface for Microcontroller

Figure 1-1. Block Diagram
Energy
Data
Coil 1
Coil 2
U3280M Transponder Interface
VField
regulator
Power
management
Damping
stage
Rectifier
512-bit
EEPROM
memory
Field/gap
detect
Serial
interface
Clock
extractor
>_1
Bi-phase
modulator
FC ^{NGAP MOD}
VBatt
NRST
VDD
Sensors, keys, displays, actuators
Low power
microcontroller
SDA
SCL
VSS
Transmit data
Receive data/field detected
Field clock
2 U3280M
4688D–RFID–03/07