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參數(shù)資料
| 型號(hào)： | MLX90110 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 128bit OTP/RW Transponder |
| 中文描述： | 128位檢察官辦公室/ RW和轉(zhuǎn)發(fā) |
| 文件頁(yè)數(shù)： | 7/10頁(yè) |
| 文件大?。?/td> | 154K |
| 代理商： | MLX90110 |
MLX90110
128bit OTP/RW Transponder
MLX90110 128bit MTP Transponder
Page 7 of 10
Rev 1.14 1-Dec-2000
3 Timing specification
3.1 Asynchronous Control Pattern
The ACP is a pattern send by the reader to the
transponder without any synchronization. It
signals the transponder to stop transmitting and
listen for a programming sequence.
The control pattern is based on the detection of
4 transitions between high field strength (FHIGH
or Vacprh) and low field strength (FLOW or
Vacprl). After the control pattern has been
successfully detected, the transponder stops
modulating.
Before starting the ACP, the field must be stable
at FHIGH for at least 2 bit periods (Tas).
Right after the last ACP transition, there is an
additional delay equal to Tas before the
transponder resets the watchdog counter (TWD).
During this delay the Field can be put back to
high to optimise operating distance.
The transponder samples the field strength once
per bit. An edge will be detected correctly if the
tag has sampled at least 2 consecutive values
on one level, and then at least 2 values at the
other level. Therefore, Tas should be longer
than 2 bit, to guarantee that the transition will be
correctly detected. The four transitions should
be completed in timeout of 16 periods (TACP).
If the startbit is not detected within 16 periods
(TWD) after TACP a time out will occur. See
operating modes to see correct flow at time out.
3.2 Other timings
The startbit is followed by a 16bit word, which
will be programmed at the address defined by
the address counter. This counter is reset when
the ACP is received. It increments after each
new word.
The other timings can be calculated based on
the formulas below.
Data send to transponder
TACP
TWD
SB
1
Treceive
16
Terase
16
Twrite
16
TWD
SB
1
Treceive
16
Terase
16
Twrite
16
≤
16
Transponder mode/operations
Normal
Read
≤
16
≤
16
Stop
modultion
Start bit
detection
RECEIVE
DATA
ERASE
WORD
WRITE
WORD
Watchdog
time out
New
startbit
RECEIVE
DATA
WRITE
WORD
ERASE
WORD
MLX90110 Timing Specifications (carrier: Freq=125kHz, Tclk=8
μ
s)
Speed
Bit period
TWD / Tsend
Terase/ Twrite
Tclk
Tclk*1024
Tclk*1024
Freq/64 (2kbaud)
0.512ms
8.912ms
8.912ms
Freq/32 (4kbaud)
0.256ms
4.096ms
4.096ms
Tas
Tas
Twd
start bit
Tas
Tas
FLOW
FHIGH
Tas
ACP pattern
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| MLX90121EFR-DAA-000-RE | 功能描述:IC RFID TXRX 13.56MHZ 20-SSOP RoHS:是 類別:RF/IF 和 RFID >> RFID IC 系列:MLX90121 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 |
| MLX90121EFR-DAA-000-TU | 制造商:Melexis Semiconductors 功能描述:IC TXRX RFID 13.56MHZ 20SSOP 制造商:Melexis Semiconductors 功能描述:MLX90121 Series 2.7 to 5.5 V 13.56 MHz Surface Mount RFID Transceiver - SSOP-20 |
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