參數(shù)資料
型號： MCRF451
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)： 10/50頁
文件大?。?/td> 1172K
代理商： MCRF451
MCRF450/451/452/455
DS40232H-page 10
2003 Microchip Technology Inc.
FIGURE 2-3:
EXTERNAL CIRCUIT CONFIGURATION FOR MCRF451
FIGURE 2-4:
EXTERNAL CIRCUIT CONFIGURATION FOR MCRF452
FIGURE 2-5:
EXTERNAL CIRCUIT CONFIGURATION FOR MCRF455
Note:
Substrate = V
SS
Internal Resonant Capacitor (Cres_100) = 95 pF
L1:
External Antenna Coil A
L2:
External Antenna Coil B
Ant. A
Ant. B
L1
V
SS
L2
MCRF451
Int. Res. Cap.
L1 > L2
ftuned
1
2
π
LT
(
)
95
12
–
×
10
-----------------------------------------------
=
fdetuned
1
2
π
L
1
(
)
95
12
–
×
10
-----------------------------------------------
=
L
T
= Total antenna inductance between Ant. A and V
SS
= 95 pF
Ant. A
Ant. B
L
V
SS
MCRF452
Internal Resonant Capacitor between Ant. A and V
SS
pads:
C
RES
_2_50 + parasitic capacitor = 30 pF
Note:
Substrate = V
SS
ftuned
1
2
π
L
( )
30
12
–
×
10
-------------------------------------------
=
fdetuned
1
2
π
L
( )
50.6
12
–
×
10
-----------------------------------------------
=
Int. Res. Cap.
= 30 pF
50.6 pF
65.4 pF
Internal Resonant Capacitor (Cres_50) = 50 pF
L1: External Antenna Coil A
L2: External Antenna Coil B
Ant. A
Ant. B
L1
V
SS
L2
MCRF455
ftuned
1
2
π
LT
(
)
50
12
–
×
10
-----------------------------------------------
=
fdetuned
1
2
π
L
1
(
)
50
12
–
×
10
-----------------------------------------------
=
L
T
= Total antenna inductance between Ant. A and V
SS
Note:
Substrate = V
SS
L1 > L2
Int. Res. Cap.
= 50 pF
Note:
See application notes AN710 and AN830 for antenna circuit design of
Figure 2-2 through Figure 2-5.
相關(guān)PDF資料
PDF描述
MCRF452 13.56 MHz Read/Write Passive RFID Device
MCRF455 13.56 MHz Read/Write Passive RFID Device
MCP450P 400000 SYSTEM GATE 1.8 VOLT FPGA - NOT RECOMMENDED for NEW DESIGN
MCP450S 13.56 MHz Read/Write Passive RFID Device
MCP450SB 13.56 MHz Read/Write Passive RFID Device
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCRF452 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:13.56 MHz Read/Write Passive RFID Device
MCRF455 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:13.56 MHz Read/Write Passive RFID Device
MCRFG0201 制造商:SPC Multicomp 功能描述:MODULAR COUPLER IN-LINE CAT5E 制造商:SPC Multicomp 功能描述:MODULAR, COUPLER, IN-LINE, CAT5E 制造商:SPC Multicomp 功能描述:MODULAR, COUPLER, IN-LINE, CAT5E; Connector Type:In-Line Adapter; Convert From Connector:RJ45; Convert From Gender:Jack; Convert From Positions:8; Convert To Connector:RJ45; Convert To Gender:Jack; Convert To Positions:8; SVHC:No ;RoHS Compliant: Yes
MCR-FL-C-UI-2UI-DCI 制造商:Phoenix Contact 功能描述:ANALOG CONVERTER MCR-FL
MCR-FL-C-UI-2UI-DCI-NC 制造商:Phoenix Contact 功能描述:INTERFACE ANALOG 制造商:Phoenix Contact 功能描述:SIGNAL MULTIPLIER, CURRENT/VOLTAGE, 30V, DIN RAIL, Signal Conditioner Output:Current / Voltage, No. of Output Channels:2, Supply Voltage Min:20VDC, Supply Voltage Max:30VDC, Supply Voltage Range:20VDC to 30VDC , RoHS Compliant: Yes
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