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參數資料
| 型號： | T555714M01-DBW |
| 廠商： | Atmel Corp. |
| 英文描述： | COMPACT VIDEO SPLITTER 4 CHANNEL |
| 中文描述： | 多功能330位讀/寫射頻識別芯片 |
| 文件頁數： | 2/30頁 |
| 文件大?。?/td> | 711K |
| 代理商： | T555714M01-DBW |
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2
T5557
4517E–RFID–02/03
T5557 –
Building Blocks
Figure 2.
Block Diagram
Analog Front End (AFE)
The AFE includes all circuits which are directly connected to the coil. It generates the
IC’s power supply and handles the bi-directional data communication with the reader. It
consists of the following blocks:
Rectifier to generate a DC supply voltage from the AC coil voltage
Clock extractor
Switchable load between Coil 1/Coil 2 for data transmission from tag to the reader
Field gap detector for data transmission from the base station to the tag
ESD protection circuitry
Data-rate Generator
The data rate is binary programmable to operate at any data rate between RF/2 and
RF/128 or equal to any of the fixed e5550/e5551 and T5554 bitrates (RF/8, RF/16,
RF/32, RF/40, RF/50, RF/64, RF/100 and RF/128).
Write Decoder
This function decodes the write gaps and verifies the validity of the data stream
according to the Atmel e555x write method (pulse interval encoding).
HV Generator
This on-chip charge pump circuit generates the high voltage required for programming
of the EEPROM.
DC Supply
Power is externally supplied to the IDIC via the two coil connections. The IC rectifies and
regulates this RF source and uses it to generate its supply voltage.
*
Mask option
*
Coil 1
Coil 2
Modulator
A
POR
Input register
W
d
B
g
Memory
(330 bit EEPROM)
Controller
Test logic
Mode register
HV generator
相關PDF資料 |
PDF描述 |
|---|---|
| T555714M01-DDT | COMPACT VIDEO SPLITTER 8 CHANNEL |
| T555714M01-DDW | USB 2.0 MULTI-PLUS CARD READER |
| T555714M01-PAE | TV PHOTO VIEWER MEDIA PLAYER |
| T555714M01-PP | CAT5 MULTI VIDEO TRANSMITVIDEO,RS232 AND STEREO AU |
| T555714M01-TAS | CAT5 MULTI VIDEO RECEIVERDUAL PORT VGA,RS232 AND A |
相關代理商/技術參數 |
參數描述 |
|---|---|
| T555714M01-DDT | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multifunctional 330-bit Read/Write RF-Identification IC |
| T555714M01-DDW | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multifunctional 330-bit Read/Write RF-Identification IC |
| T555714M01-PAE | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multifunctional 330-bit Read/Write RF-Identification IC |
| T555714M01-PP | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multifunctional 330-bit Read/Write RF-Identification IC |
| T555714M01-TAS | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multifunctional 330-bit Read/Write RF-Identification IC |
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