SRT512_08 Datasheet, PDF (40/46 Pages) STMicroelectronics – 13.56 MHz short-range contactless memory chip with 512-bit EEPROM and anticollision functions

DC and AC parameters
Figure 50. SRT512 synchronous timing, transmit and receive
ASK Modulated signal from the Reader to the Contactless device
A
B
t_RFF
t_{MIN CD}
t_RFSBL
t_RFR
ƒcc
SRT512
FRAME Transmission between the reader and the contactless device
t_DR
t_DR
1 0 DATA 1
EOF
FRAME Transmitted by the reader in ASK
FRAME Transmitted by SRT512
in BPSK
847KHz
SOF 1 1 0 DATA ¹ 0 DATA ¹ 0
t₀
t₁
t_DA
t_DA
Data jitter on FRAME Transmitted by the reader in ASK
t_JIT
t_JIT
t_JIT
t_JIT
t_JIT
0
START
t_RFSBL
t_RFSBL
t_RFSBL
t_RFSBL
t_RFSBL
Ai13516b
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