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參數(shù)資料
| 型號： | EM4550A6WS7 |
| 廠商： | EM Microelectronic |
| 英文描述： | 1 KBit Read/Write Contactless Identification Device |
| 中文描述： | 1千位讀/寫非接觸式識別裝置 |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 230K |
| 代理商： | EM4550A6WS7 |
EM4450
EM4550
Copyright
2003, EM Microelectronic-Marin SA
12
www.emmicroelectronic.com
While the transceiver is sending data to the transponder, two different modulations will be observed on both coils. During
the first half of the bit period, the EM4450/4550 is switching "ON" its modulation device causing a modulation of the RF field.
This modulation can also be observed on the transceiver's coil. The transceiver sending a bit "0" will switch "OFF" the field,
causing a 100% modulation being observed on the transponder coil.
Transceiver
Coil
Transponder
Coil
"1"
"1"
"1"
"0"
"0"
"0"
16
16
Periods of RF field (Opt 32):
Bit Period
DATA :
Modulation induced by the Transceiver
Modulation induced by the Transponder
16
*
*
Recommended
Minimum
: 7/4 periods (Opt64/Opt32)
: 1 period
16
Periods of RF field (Opt 64):
32
32
32
32
Opt64 is the chip option with a bit period corresponding to 64 priods of the RF field
Opt32 is the chip option with a bit period corresponding to 32 priods of the RF field
Fig. 21
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| EM4550A6WS7E | 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:1 KBit Read/Write Contactless Identification Device |
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| EM4550A6WT27E | 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:1 KBit Read/Write Contactless Identification Device |
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