CR14 STMicroelectronics, CR14 Datasheet - Page 40

• Manufacturer Part Number: CR14
• Description: Low Cost Iso14443 Type-b Contactless Coupler Chip With Anti-collision And Crc Management
• Manufacturer: STMicroelectronics

9 DC and AC parameters
Figure 35. CR14 Synchronous Timing
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RF OUT ASK Modulated Signal
V RFOUT
FRAME transmission between the reader and the contactless device
FRAME transmitted by the PICC in BPSK
Data jitter on FRAME transmitted by the CR14 in ASK
t DR
1
0
t RFSBL
t POR
DATA
t DR
START
1
t RFSBL
t JIT
0
A
EOF
t RFSBL
t JIT
B
t RFF
t 0
t RFSBL
t JIT
847kHz
t 1
t RFSBL
t JIT
t RFR
SOF
FRAME transmitted by the CR14 in ASK
t DA
t RFSBL
1 1 0 DATA
t JIT
t DA
1 0 DATA
1 0
f CC
CR14
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