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參數(shù)資料
| 型號： | MCRF202 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 125 kHz Passive RFID Device with Sensor Input |
| 中文描述： | 的125 kHz無源RFID器件，傳感器輸入 |
| 文件頁數(shù)： | 8/20頁 |
| 文件大?。?/td> | 340K |
| 代理商： | MCRF202 |
MCRF202
DS21308E-page 8
2003 Microchip Technology Inc.
FIGURE 2-4:
TYPICAL APPLICATION CIRCUITS
Pad V
B
Pad V
A
Input capacitance: 2 pF
RF Carrier
Signal
Data
C
To Reader
Data Detection
Circuit
From
Oscillator
I
4.91 mH
(L)
330 pF
(C)
fres
2
π
LC
-------1
125
kHz
=
=
125 kHz
MCRF202
Vss
Vcc
SENSOR
Device Output
External Switch CLOSED (Logic “1” in SENSOR Input):Normal Data Stream
External Switch OPEN (Logic “0” in SENSOR Input):
Inverted Data Stream
L
Using MCRF202 with an external passive switch or sensor
External
Switch
or Sensor
Pad V
B
Pad V
A
Input capacitance: 2 pF
Data
C
To Reader
Data Detection
Circuit
From
oscillator
L
4.91 mH
(L)
330 pF
(C)
fres
2
π
LC
-------1
125
kHz
=
=
125 kHz
MCRF202
Vss
Vcc
SENSOR
Device Output
Logic “1” in SENSOR Input:
Logic “0” in SENSOR Input:
Normal Data Stream
Inverted Data Stream
RF Carrier
Signal
I
Self-Powered
External System
Using MCRF202 with an external, self-powered system
Pad V
B
Pad V
A
Input capacitance: 2 pF
Data
C
From
oscillator
L
4.91 mH
(L)
330 pF
(C)
fres
2
π
LC
--------1
125
kHz
=
=
125 kHz
MCRF202
Vss
Vcc
SENSOR
To Reader
Data Detection
Circuit
Device Output
External Switch CLOSED (Logic “1” in SENSOR Input): Normal Data Stream
External Switch OPEN (Logic “0” in SENSOR Input):
Inverted Data Stream
RF Carrier
Signal
I
SW
Using MCRF202 with a low-resistance pull-down
External
Resistor
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCRF202-I/P | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:125 kHz Passive RFID Device with Sensor Input |
| MCRF202-I/S | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:125 kHz Passive RFID Device with Sensor Input |
| MCRF202-I/SB | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:125 kHz Passive RFID Device with Sensor Input |
| MCRF202-I/SN | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:125 kHz Passive RFID Device with Sensor Input |
| MCRF202-I/W | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:125 kHz Passive RFID Device with Sensor Input |
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