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ATA555815-PAE

更新时间： 2024-01-22 00:45:55

品牌	Logo	应用领域
爱特美尔 - ATMEL		/
页数	文件大小	规格书
42页	672K
描述
1 kbit R/W IDIC with Deterministic Anticollision

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技术参数
数据手册

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ATA555815-PAE 技术参数

生命周期：	Obsolete	零件包装代码：	DIE
包装说明：	DIE,	Reach Compliance Code：	unknown
HTS代码：	8542.31.00.01	风险等级：	5.84
Is Samacsys：	N	JESD-30 代码：	X-XUUC-N
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	UNSPECIFIED	封装代码：	DIE
封装形状：	UNSPECIFIED	封装形式：	UNCASED CHIP
认证状态：	Not Qualified	表面贴装：	YES
技术：	CMOS	温度等级：	INDUSTRIAL
端子形式：	NO LEAD	端子位置：	UPPER
uPs/uCs/外围集成电路类型：	MICROPROCESSOR CIRCUIT	Base Number Matches：	1

ATA555815-PAE 数据手册

3.1

Tag to Interrogator Communication

All transmissions from the tag to the interrogator utilize amplitude modulation (ASK) of the RF

carrier. This takes place by controlled switching of a resistive load between the coil pads which in

turn modulates the RF field generated by the interrogator.

The tag is capable of communicating with the interrogator via inductive coupling. Typical exam-

ples of the incorporated amplitude modulation is shown in Figure 3-1:

• Manchester encoded data signal

• Bi-phase encoded data signal

• NRZ direct data encoding

• Dual pattern data coding is used during the anticollision loop and for an error code response

Figure 3-1. Tag to Interrogator - Load Modulation Coding

NRZ

Data

Normal Manchester

data coding

Normal Biphase

data coding

Anticollision dual pattern

data coding

T_d

load on

Data "1"

T_d

load off

load on

load off

load on

T_d

load off

load on

load off

load on

load off

load on

T_d

Data "0"

load off

load on

3.1.1

Start of Frame (SOF) Encoding

After the reception of a valid interrogator command the tag will reply immediately with a Start of

Frame (SOF) pattern. The SOF pattern is made up of a variable length preamble and a fixed

2-bit (Manchester) code violation followed by a half bit duration of unmodulated carrier. The pre-

amble length as set in the configuration block defines the number of (Manchester coded) zero

initialization data bits. If the preamble length in the configuration register is set to zero, a single

start bit will precede on the code violation.

ATA5558 [Preliminary]

4681C–RFID–09/05

1...7 8 91011 12 13...42

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