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參數(shù)資料
| 型號(hào)： | TK5552 |
| 廠商： | Atmel Corp. |
| 英文描述： | Read/Write Transponder |
| 中文描述： | 讀/寫轉(zhuǎn)發(fā) |
| 文件頁(yè)數(shù)： | 11/22頁(yè) |
| 文件大?。?/td> | 326K |
| 代理商： | TK5552 |
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11
TK5552
4698A–RFID–04/03
Functional Modules
Analog Front End (AFE)
The Analog Front End (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 base station. It consists of the following blocks:
Rectifier to generate a DC supply voltage from the AC coil voltage
ESD protection
Clock extractor
Switchable load between Clock-A/Clock-B for data transmission from the IC to the
reader electronics (uplink mode)
Field gap detector for data transmission from the base station to the IC
(downlink mode)
Controller
The control logic is responsible for the following:
Initializing and refreshing configuration register from EEPROM block 0
Controlling read and write memory access
Handling data transmission and opcode decoding
Error detection and error handling
Clock Extraction
The clock extraction circuit generates the internal clock source out of the external RF
signal.
Data Rate Generator
The data rate in uplink mode can be selected to operate at either RF/16 (nominally
7.81 kHz, default) or RF/32 (nominally 3.91 kHz).
Bit Decoder
This functional block decodes the field gaps and verifies the validity of the incoming data
stream.
Charge Pump
This circuit generates the high voltage required for programming the EEPROM.
Power-On Reset (POR)
This circuit delays the IC's functionality until an acceptable voltage threshold has been
reached.
Mode Register
This register holds the configuration data bits stored in EEPROM block 0. It is refreshed
at the start of every block read operation.
Modulator
The modulator encodes the serial data stream shifted out of the selected EEPROM data
block and controls the damping circuit in the AFE. The transponder IC front end sup-
ports PSK and Manchester encoding.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TK5552A-PP | Read/Write Transponder |
| TK5561A-PP | READ/WRITE CRYPTO TRANSPONDER FOR SHORT CYCLE TIME |
| TL061AMN | LOW POWER J-FET SINGLE OPERATIONAL AMPLIFIER |
| TL061B | LOW POWER J-FET SINGLE OPERATIONAL AMPLIFIER |
| TL061BC | LOW POWER J-FET SINGLE OPERATIONAL AMPLIFIER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TK5552A-PP | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Read/Write Transponder |
| TK5561A-PP | 功能描述:射頻無(wú)線雜項(xiàng) Crypto-Transp. Prog f.all appl. RoHS:否 制造商:Texas Instruments 工作頻率:112 kHz to 205 kHz 電源電壓-最大:3.6 V 電源電壓-最小:3 V 電源電流:8 mA 最大功率耗散: 工作溫度范圍:- 40 C to + 110 C 封裝 / 箱體:VQFN-48 封裝:Reel |
| TK55A10J1(Q) | 制造商:Toshiba America Electronic Components 功能描述: 制造商:Toshiba America Electronic Components 功能描述:Trans MOSFET N-CH 100V 55A 3-Pin(3+Tab) TO-220SIS |
| TK55D10J1 | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Switching Regulator Applications |
| TK55D10J1(Q) | 功能描述:MOSFET MOSFET N-Ch RoHS:否 制造商:STMicroelectronics 晶體管極性:N-Channel 汲極/源極擊穿電壓:650 V 閘/源擊穿電壓:25 V 漏極連續(xù)電流:130 A 電阻汲極/源極 RDS（導(dǎo)通）:0.014 Ohms 配置:Single 最大工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:Max247 封裝:Tube |
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