參數(shù)資料
型號(hào): HTMS8001FTK
廠商: NXP Semiconductors N.V.
元件分類: 通信及網(wǎng)絡(luò)
英文描述: HITAG ?; Transponder IC
封裝: HTMS1001FTB/AF<sot1122 (XSON3)|<<http://www.nxp.com/packages/sot1122.html<1<Always Pb-free,;HTMS1001FTK/AF<SOT899-1 (HVSON2)|<<http://www.nxp.com/packages/SOT899-1.html&l
文件頁數(shù): 15/58頁
文件大?。?/td> 844K
代理商: HTMS8001FTK
152931
NXP B.V. 2010. All rights reserved.
Product data sheet
PUBLIC
Rev. 3.1 — 21 January 2010
152931
15 of 58
NXP Semiconductors
HITAG μ
Transponder IC
9.2 Mode switching protocol
After powering the HITAG μ transponder IC switches to the data exchange mode after
receiving one of the two possible switch commands from the RWD during the specified
switch window (see
Table 7
and
Figure 4
for details).
Table 7.
Parameter
Interrogation field modulation
Encoding
Bit rate
Mode switching
[1]
T
C...
Carrier period time (
1/
134.2
kHz = 7.45
μ
s nominal)
Fig 4.
Switching window timing
HITAG μ transponder IC air interface parameters
[1]
Description
Amplitude modulation (ASK), 90 - 100%
Pulse Interval Encoding; Least Significant Bit (LSB) first
5.2 kbit/s typically
Either a specific 5 bit switch command or the detection of the
SOF as part of a valid
HITAG μ transponder IC
command,
transmitted after the interruption of the interrogation field for at
least 5 ms
Mode switch timing
HITAG μ transponder IC
settling time: 312.5
×
T
C
switch
command window after
HITAG μ transponder IC
settling:
232.5
×
T
C
All within cycle C in
Figure 3
.
Mode switch command
00011 or SOF sequence
001aak278
312.5
×
T
c
232
×
T
c
TTF operation in case
of no command
during switching window
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