CR14 STMicroelectronics, CR14 Datasheet - Page 41

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

CR14
Table 13.
1. Data specified in the table above are estimated or target values. All values can be updated during product
Table 14.
1. Data specified in the table above are estimated or target values. All values can be updated during product
f
MI
t
t
t
t
t
t
t
t
t
t
P
t
CC
RFR
RFSBL
JIT
0
1
WDG
WDG
WDG
WDG
DR
POR
A
V
Symbol
CARRIER
Symbol
t
qualification.
qualification.
OFFSET
RFSBL
V
V
, t
t
DYN
RET
f
DA
S
RFF
RF
RF
PICC Pulse Width
PICC Sub-carrier Frequency
Time Between Answer characters
RF
RF
RF
External Oscillator Frequency
Carrier Modulation Index
10% Rise and Fall time
ASK modulation bit jitter
Antenna Reversal delay
Synchronization delay
Answer delay watchdog (b
Answer delay watchdog (b
Answer delay watchdog (b
Answer delay watchdog (b
Time Between Request characters
RF
CR14
Pulse Width on RF
OUT
IN
IN
IN
IN
OUT
AC Characteristics
Dynamic Voltage Level
Offset Voltage Level
Retro-modulation Level
Power-On delay
AC Characteristics
output power
Parameter
Parameter
OUT
5
5
5
5
=0, b
=0, b
=1, b
=1, b
6
6
6
6
=0)
=1)
=0)
=1)
V
DYN
V
MI=(A-B)/(A+B)
1 ETU = 128/f
CR14 to PICC
Min = 64/f
Min = 80/f
CR14
1 ETU = 128/f
CC
PICC to CR14
Max for V
Request EOF
rising edge to
first Answer
Condition
Condition
= 5V
start bit
f
V
to PICC
CC
CC
/16
/2
S
S
OFFSET
CC
CC
=
13.553
10
0.5
9.44
-0.5
75
94
9.44
Min.
9 DC and AC parameters
Min.
120
0.5
2
1, 2, 3
847.5
9.44
0.5
13.567
14
1.5
500
5
10
309
90
20
Max.
V
Max.
CC
3
/2
%
µs
µs
µs
MHz
µs
µs
µs
ms
ms
ms
µs
mW
ms
Unit
ETU
Unit
KHz
mV
41/46
µs
V
V