công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

Preview PDF HTML

ATA5577C bảng dữ liệu(PDF) 21 Page - ATMEL Corporation

tên linh kiện ATA5577C
Giải thích chi tiết về linh kiện  Read/Write LF RFID IDIC 100 to 150kHz
PDF  47 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  ATMEL [ATMEL Corporation]
Trang chủ  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATA5577C bảng dữ liệu(HTML) 21 Page - ATMEL Corporation

Back Button ATA5577C Datasheet HTML 17Page - ATMEL Corporation ATA5577C Datasheet HTML 18Page - ATMEL Corporation ATA5577C Datasheet HTML 19Page - ATMEL Corporation ATA5577C Datasheet HTML 20Page - ATMEL Corporation ATA5577C Datasheet HTML 21Page - ATMEL Corporation ATA5577C Datasheet HTML 22Page - ATMEL Corporation ATA5577C Datasheet HTML 23Page - ATMEL Corporation ATA5577C Datasheet HTML 24Page - ATMEL Corporation ATA5577C Datasheet HTML 25Page - ATMEL Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 21 / 47 page
background image
21
ATA5577C [DATASHEET]
9187H–RFID–07/14
Figure 5-13. Long-leading-reference Protocol
5.12.5 Leading-zero-reference Protocol
If the device is programmed in this mode, it will always expect a reference pulse before the command data itself. This pulse
length should correspond exactly to the length of the zero bits in the following command. All further lengths of the zero and
one bits of the command are derived from the reference pulse. Therefore, downlink performance is optimal in different
environmental conditions.
Figure 5-14. Leading-zero-reference Protocol
Table 5-11. Downlink Data Coding Scheme with Long Leading Reference
Parameter
Remark
Symbol
Normal Downlink
Fast Downlink
Unit
Min.
Typ.
Max.
Min.
Typ.
Max.
Start gap
Sgap
8
15
50
8
15
50
Tc
Write gap
Wgap
8
10
20
8
10
20
Tc
Write data
coding (gap
separation)
Reference Pulse
dref
152
160
168
140
144
148
Tc
136 clocks + 0 data bit
132 clocks + 0 data bit
Tc
0 data
d0
dref – 143 dref – 136
dref – 128
dref – 135
dref – 132
dref – 124
Tc
1 data
d1
dref – 111
dref – 104
dref – 96
dref – 119
dref – 116
dref – 112
Tc
Note:
All absolute times assume TC = 1 / fC = 8µs (fC = 125kHz)
1
Reference pulse
0
a)
10
b)
1
Reference pulse
0
c)
Table 5-12. Downlink Data Coding Scheme with Leading-zero Reference
Parameter
Remark
Symbol
Normal Downlink
Fast Downlink
Unit
Min.
Typ.
Max.
Min.
Typ.
Max.
Start gap
Sgap
8
15
50
8
15
50
Tc
Write gap
Wgap
8
10
20
8
10
20
Tc
Write data
coding (gap
separation)
Reference Pulse
dref
12
–
72
8
–
68
Tc
0 data
d0
dref – 7
dref
dref + 8
dref – 3
dref
dref + 4
Tc
1 data
d1
dref + 9
dref + 16
dref + 24
dref + 5
dref + 8
dref + 12
Tc
Note:
All absolute times assume TC = 1 / fC = 8µs (fC = 125kHz)
10
(0)
Reference pulse



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47


bảng dữ liệu tải về

Go To PDF Page


Link URL



Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Liên kết đến bảng dữ liệu    |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com