SRI4K-A3T/1GE STMicroelectronics, SRI4K-A3T/1GE Datasheet - Page 31

• Manufacturer Part Number: SRI4K-A3T/1GE
• Manufacturer: STMicroelectronics

Specifications of SRI4K-A3T/1GE

• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Lead Free Status / Rohs Status: Compliant

DC AND AC PARAMETERS
Table 6. Operating Conditions
Table 7. DC Characteristics
Table 8. AC Characteristics
Note: 1. All timing measurements were performed on a reference antenna with the following characteristics:
MI
t
RFR
Symbol
Symbol
Symbol
t
t
MIN CD
CARRIER
C
V
RFSBL
V
I
I
f
t
t
t
t
CC
CC
RET
TUN
CC
JIT
DR
T
f
t
t
t
DA
CC
, t
W
S
0
1
2
A
External size: 75mm x 48mm
Number of turns: 3
Width of conductor: 1mm
Space between 2 conductors: 0.4mm
Value of the coil: 1.4µH
Tuning Frequency: 14.4MHz.
RFF
Retromodulation Induced Voltage
Internal Tuning Capacitor
Ambient Operating Temperature
Time Between Request Characters
Time Between Answer Characters
Minimum Pulse Width for Start bit
Supply Current (Active in Read)
Supply Current (Active in Write)
Answer to New Request Delay
Programming Time for WRITE
External RF Signal Frequency
Minimum Time from Carrier
ASK modulation Data Jitter
Carrier Modulation Index
10% Rise and Fall times
Generation to First Data
Antenna Reversal Delay
Synchronization Delay
Subcarrier Frequency
Regulated Voltage
Parameter
Parameter
Parameter
Binary Counter Decrement
With no Auto-Erase Cycle
With Auto-Erase Cycle
70pF at 13.56MHz
Coupler to SRI4K
Coupler to SRI4K
SRI4K to Coupler
MI=(A-B)/(A+B)
ETU = 128/f
ISO10373-6
V
V
(EEPROM)
Condition
Condition
CC
CC
14 ETU
f
128/f
128/f
(OTP)
CC
= 3.0V
= 3.0V
/16
S
S
CC
Min.
–20
13.553
Min
Min
132
2.5
0.8
20
64
–2
Max.
8
5
0
85
847.5
9.44
151
151
0
13.567
Max
Max
100
250
3.5
2.5
+2
78
14
57
3
5
7
Unit
°C
SRI4K
MHz
Unit
Unit
kHz
mV
ms
ms
ms
ms
µA
µA
pF
µs
µs
µs
µs
µs
µs
µs
µs
%
31/41
V