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System principle
Transponder
Coil1
Read Only
and
R/W Chip
Coil2
Signal on
Transceiver coil
UPLINK
Signal on
Transponder coil
RF Carrier
Data
EM4095
Transceiver
R/W configuration
RDY/CLK
LA +5V
CRES
CDV1
+5V
CDV2
1
2
16
15
CDC2
CFCAP
3
14
4EM4095 13
5
12
6
11
SHD
DEMOD_OUT
MOD
CAGND
µP
7
10
CDEC
8
9
Signal on
Transponder coil
DOWNLINK
Signal on
Transceiver coil
RF Carrier
Data
Fig. 4
Copyright 2002, EM Microelectronic-Marin SA
2
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