參數(shù)資料
型號(hào)： 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)： 9/50頁
文件大小： 1172K
代理商： MCRF451
2003 Microchip Technology Inc.
DS40232H-page 9
MCRF450/451/452/455
TABLE 2-7:
PAD FUNCTION TABLE
FIGURE 2-2:
EXTERNAL CIRCUIT CONFIGURATION FOR MCRF450
Name
Function
Ant. Pad A
Connected to antenna coil L1.
Ant. Pad B
Connected to antenna coils L1 and L2
for MCRF450/451/455, NC for
MCRF452.
V
SS
Connected to antenna coil L2.
Device ground during Test mode.
(V
SS
= substrate)
F
CLK
For device test only. Leave floating or
connect to V
SS
in applications.
V
DD
For device test only. Leave floating in
applications.
Note:
NC = Not Connected.
Ant. A
Ant. B
L1
V
SS
L2
C
MCRF450
Note:
Substrate = V
SS
L1 > L2
(a) Two inductors and one capacitor
ftuned
1
2
π
LTC
---------------------
=
fdetuned
1
2
π
L
1
C
---------------------
=
LT
L
1
L
2
2
LM
+
+
=
Where: L
M
= mutual inductance of L1 and L2
L
T
= Total antenna inductance between Ant. A and V
SS
LM
K L
1
L
2
=
K = coupling coefficient of two inductors (0
≤
K
≤
1)
Ant. A
Ant. B
L
V
SS
C1
MCRF450
Note:
Substrate = V
SS
C1
≥
C2
(b) One inductor and two capacitors
ftuned
1
2
π
LTCT
-------------------------
=
fdetuned
1
2
π
LC
1
---------------------
=
CT
C
1
C
2
--------------------
C
1
C
2
+
=
C2
Note:
Input parasitic capacitance between Antenna A and V
SS
pads = 3.5 pF.
See application notes, AN710 and AN830 for antenna circuit design.
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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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