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參數(shù)資料
| 型號： | ATA555814M01-PP |
| 廠商： | Atmel Corp. |
| 英文描述： | 1 kbit R/W IDIC with Deterministic Anticollision |
| 中文描述： | 1千比特讀/寫的確定性防撞投資業(yè)務 |
| 文件頁數(shù)： | 10/42頁 |
| 文件大?。?/td> | 557K |
| 代理商： | ATA555814M01-PP |
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10
4681C–RFID–09/05
ATA5558 [Preliminary]
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
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.
NRZ
Data
Anticollision dual pattern
data coding
load on
load off
T
d
load on
load off
T
d
T
d
T
d
Normal Manchester
data coding
load on
load off
T
d
load on
load off
T
d
Normal Biphase
data coding
load on
T
d
or
load off
load on
load off
load on
load off
T
d
or
Data "1"
Data "0"
相關PDF資料 |
PDF描述 |
|---|---|
| ATA555814-PAE | 1 kbit R/W IDIC with Deterministic Anticollision |
| ATA555814-PP | 1 kbit R/W IDIC with Deterministic Anticollision |
| ATA555815-DDT | 1 kbit R/W IDIC with Deterministic Anticollision |
| ATA555815-DDW | 1 kbit R/W IDIC with Deterministic Anticollision |
| ATA555815M01-DDT | 1 kbit R/W IDIC with Deterministic Anticollision |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ATA555814-PAE | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:1 kbit R/W IDIC with Deterministic Anticollision |
| ATA555814-PP | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:1 kbit R/W IDIC with Deterministic Anticollision |
| ATA555815C-PP | 功能描述:外圍驅動器與原件 - PCI ATA555815C-PP Transponder RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| ATA555815-DDT | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:1 kbit R/W IDIC with Deterministic Anticollision |
| ATA555815-DDW | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:1 kbit R/W IDIC with Deterministic Anticollision |
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