CRX14_05 Datasheet, PDF (34/40 Pages) STMicroelectronics – Low Cost ISO14443 type-B Contactless Coupler Chip with Anti-Collision, CRC Management and Anti-Clone Function

CRX14
Figure 36. CRX14 Synchronous Timing
RFOUT ASK Modulated Signal
VRFOUT
tRFSBL
tRFF
A
B
tRFR
tPOR
fCC
FRAME transmission between the reader and the contactless device
tDR
1
tDR
0 DATA 1
EOF
FRAME transmitted by the CRX14 in ASK
FRAME transmitted by the PICC in BPSK
847kHz
SOF 1 1 0 DATA 1 0 DATA 1 0
t0
t1
tDA
tDA
Data jitter on FRAME transmitted by the CRX14 in ASK
tJIT
0
START
tRFSBL
tJIT
tJIT
tRFSBL
tJIT
tJIT
tRFSBL
tRFSBL
tRFSBL
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