參數(shù)資料
型號(hào)： T555715M01-DDT
廠商： Atmel Corp.
英文描述： CONNECTOR ACCESSORY
中文描述： 連接器附件
文件頁(yè)數(shù)： 15/30頁(yè)
文件大?。?/td> 711K
代理商： T555715M01-DDT
15
T5557
4517E–RFID–02/03
Sequence Start Marker
Figure 17.
T5557 Sequence Start Marker in Extended Mode
The T5557 sequence start marker is a special damping pattern, which may be used to
synchronize the reader. The sequence start marker consists of two bits (‘01’ or ‘10’)
which are inserted as header before the first block to be transmitted if the bit 29 in
extended mode ist set. At the start of a new block sequence, the value of the two bits is
inverted.
Inverse Data Output
The T5557 supports in its extended mode (X-mode) an inverse data output option. If
inverse data is enabled, the modulator as shown in Figure 18 works on inverted data
(see Table 4). This function is supported for all basic types of encoding.
Figure 18.
Data Encoder for Inverse Data Output
Fast Write
In the optional fast write mode the time between two gaps is nominally 12 field clocks for
a ‘0’ and 27 field clocks for a ‘1’. When there is no gap for more than 32 field clocks after
a previous gap, the T5557 will exit the write mode. Please refer to Table 5 and Figure 8.
Table 5.
Fast Write Data Decoding Schemes
Block 1
Block 2
MAXBLK
Block 1
10
10
01
Block-read mode
Regular-read mode
Sequence Start Marker
Block 2
MAXBLK
10
Block n
01
Block n
10
Block n
01
Block n
10
Block n
01
Modulator
XOR
Inverse data output
D
Sync
CLK
R
Intern out
data
Data output
Data clock
PSK1
PSK2
PSK3
Direct/NRZ
FSK1
FSK2
Manchester
Biphase
Mux
Parameters
Start gap
Remark
–
Symbol
S
gap
Wn
gap
Wf
gap
d
0
d
1
d
0
d
1
Min.
10
Max.
50
30
20
31
63
15
31
Unit
FC
FC
FC
FC
FC
FC
FC
Write gap
Normal write mode
Fast write mode
‘0’ data
‘1’ data
‘0’ data
‘1’ data
8
8
Write data in
normal mode
16
48
8
24
Write data in fast
mode
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
T555715M01-DDW 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multifunctional 330-bit Read/Write RF-Identification IC
T555715M01-PAE 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multifunctional 330-bit Read/Write RF-Identification IC
T555715M01-PP 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multifunctional 330-bit Read/Write RF-Identification IC
T555715M01-TAS 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multifunctional 330-bit Read/Write RF-Identification IC
T555715-PAE 功能描述:IC TRANSPONDER R/W 330BIT 330PF RoHS:否 類別:RF/IF 和 RFID >> RFID IC 系列:T555715 其它有關(guān)文件:CR14 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:- RF 型:收發(fā)器 頻率:13.56MHz 特點(diǎn):ISO14443-B 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SO 包裝:Digi-Reel® 其它名稱:497-5719-6
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