參數(shù)資料
型號： MCP452
廠商： Microchip Technology Inc.
英文描述： 13.56 MHz Read/Write Passive RFID Device
中文描述： 13.56 MHz讀/寫無源RFID器件
文件頁數(shù)： 6/50頁
文件大?。?/td> 1172K
代理商： MCP452
MCRF450/451/452/455
DS40232H-page 6
2003 Microchip Technology Inc.
TABLE 2-3:
OPERATING AC CHARACTERISTICS
Standard Operating Conditions (unless otherwise stated)
Operating Temperature = -20°C to +70°C.
Parameters
Symbol
Min
Typ
Max Units
Conditions
Carrier frequency
F
C
2.0
13.56
35
MHz
Device data rate
F
M
58
70
82
kHz
Manchester coding, both Normal and
Fast modes, 70 kHz ±17%
(Note 1)
Pulse width of 1-of-16 PPM
for Normal mode
PW
PPM
_
N
145
175
205
μ
s
See Figure 6-2 and Table 6-7,
175
μ
s ±17%
Pulse width of 1-of-16 PPM
for Fast mode
PW
PPM
_
F
8.3
10
11.7
μ
s
See Figure 6-2 and Table 6-7
Symbol duration of 1-of-
16 PPM for Normal mode
SW
PPM
_
N
2.32
2.8
3.28
ms
See Figure 6-9
Symbol duration of
1-of-16 PPM for Fast mode
SW
PPM
_
F
133
160
187
μ
s
Modulation index of gap
pulse
MOD
INDEX
_
GAP
20
60
100
%
See Figure 6-2
Gap width of Interrogator
command and data except
Fast mode data
GAP
WIDTH
_
N
20
100
150
μ
s
See Figure 6-2 and Table 6-7
Gap width of Fast mode
data
GAP
WIDTH
_
F
6.0
7.0
8.0
μ
s
See Figure 6-2 and Table 6-7
Coil voltage during reading
V
PP
_
AC
4.0
—
—
V
PP
Peak-to-Peak voltage across the coil
during reading
Detuning voltage
V
DETUNE
3.0
4.0
—
V
DC
V
DD
voltage at which the input voltage
limiting circuit becomes active
EEPROM (Memory)
Writing Time
T
WRITE
—
5.0
—
ms
Write time for a 32-bit block
Command Decode Time
T
DECODE
0.97
1.225 1.48
ms
Time delay between end of command
symbol and start of the device
response
Time slot
T
SLOT
2.1
2.5
2.93
ms
Listening Window
T
LW
0.82
1.0
1.17
ms
Command Duration of Fast
Read command (FRR and
FRB)
T_CMD_
FRR
1.305 1.575 1.845
ms
175
μ
s/pulse position x 9 pulse
positions = 1.575 ms
Internal Resonant
Capacitor
C
RES
_100
85.5
95
104.5
pF
Between Ant. A and V
SS
pads at
13.56 MHz and at 25°C (MCRF451)
See Figure 2-3
C
RES
_2_50
27
30
33
pF
Between Ant. A and V
SS
pads at
13.56 MHz and at 25°C (MCRF452)
See Figure 2-4
C
RES
_50
45
50
55
pF
Between Ant. A and V
SS
pads at
13.56 MHz and at 25°C (MCRF455)
See Figure 2-5
Parasitic Input Capacitance
of MCRF450
C
PARA
_
IN
—
3.5
—
pF
Between antenna pad A and V
SS
, at
13.56 MHz with modulation transistor
off (no external coils). Not tested in
production
Note 1:
Tested in production at V
DD
= 2.8 V
DC
and 5.0 V
DC
.
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