- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄367625 > MFRC53001T (NXP Semiconductors N.V.) ISO-IEC 14443 A Reader IC PDF資料下載
參數(shù)資料
| 型號： | MFRC53001T |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | ISO-IEC 14443 A Reader IC |
| 封裝： | MFRC53001T/0FE<SOT287-1 (SO32)|<<http://www.nxp.com/packages/SOT287-1.html<1<week 5, 2005,;MFRC53001T/0FE<SOT287-1 (SO32)|<<http://www.nxp.com/packages/SOT287-1.html<1 |
| 文件頁數(shù)： | 33/115頁 |
| 文件大?。?/td> | 2590K |
| 代理商： | MFRC53001T |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁當(dāng)前第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁
MFRC530_33
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3.3 — 6 July 2010
057433
33 of 115
NXP Semiconductors
MFRC530
ISO/IEC 14443 A Reader IC
9.10.2.2
Amplifier
The demodulated signal must be amplified by the variable amplifier to achieve the best
performance. The gain of the amplifiers can be adjusted using the RxControl1 register
Gain[1:0] bits; see
Table 28
.
Table 28.
See
Table 84 “RxControl1 register bit descriptions” on page 59
for additional information.
Register setting
9.10.2.3
Correlation circuitry
The correlation circuitry calculates the degree of matching between the received and an
expected signal. The output is a measure of the amplitude of the expected signal in the
received signal. This is done for both, the Q and I-channels. The correlator provides two
outputs for each of the two input channels, resulting in a total of four output signals.
The correlation circuitry needs the phase information for the incoming card signal for
optimum performance. This information is defined for the microprocessor using the
BitPhase register. This value defines the phase relationship between the transmitter and
receiver clock in multiples of the BitPhase time (t
BitPhase
) = 1 / 13.56 MHz.
9.10.2.4
Evaluation and digitizer circuitry
The correlation results are evaluated for each bit-half of the Manchester encoded signal.
The evaluation and digitizer circuit decides from the signal strengths of both bit-halves, if
the current bit is valid
If the bit is valid, its value is identified
If the bit is not valid, it is checked to identify if it contains a bit-collision
Select the following levels for optimal performance using RxThreshold register bits:
MinLevel[3:0]:
defines the minimum signal strength of the stronger bit-halve’s signal
which is considered valid.
CollLevel[3:0]:
defines the minimum signal strength relative to the amplitude of the
stronger half-bit that has to be exceeded by the weaker half-bit of the Manchester
encoded signal to generate a bit-collision. If the signal’s strength is below this value,
logic 1 and logic 0 can be determined unequivocally.
After data transmission, the card is not allowed to send its response before a preset time
period which is called the frame guard time in the ISO/IEC 14443 standard. The length of
this time period is set using the RxWait register’s RxWait[7:0] bits. The RxWait register
defines when the receiver is switched on after data transmission to the card in multiples of
one bit duration.
If bit RcvClkSelI is set to logic 1, the I-clock is used to clock the correlator and evaluation
circuits. If bit RcvClkSelI is set to logic 0, the Q-clock is used.
Gain factors for the internal amplifier
Gain factor (dB)
(simulation results)
20
24
31
35
00
01
10
11
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MFRC53101T | ISO-IEC 14443 reader IC |
| MFRX85201HD | Secure contactless reader solution |
| MMBD4148 | High-speed switching diode |
| MMBD6050-V-GS08 | SWITING 70V 0.2A 3PIN SOT-23 - Tape and Reel |
| MMBD6050-V-GS18 | SWITING 70V 0.2A 3PIN SOT-23 - Tape and Reel |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MFRC53001T/0FE | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:ISO/IEC 14443 A Reader IC |
| MFRC53001T/0FE,112 | 功能描述:RFID應(yīng)答器 MIFARE HS READER RoHS:否 制造商:Murata 存儲容量:512 bit 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| MFRC53001T/0FE,518 | 功能描述:RFID應(yīng)答器 IC READER 13.56MHZ RoHS:否 制造商:Murata 存儲容量:512 bit 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| MFRC53001T/0FE112 | 制造商:NXP Semiconductors 功能描述:CNTCLESS RC 3.3V ISO14443-A/B |
| MFRC531 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Short Form Specification |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。