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| 型號： | M34559G6FP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PQFP52 |
| 封裝： | 10 X 10 MM, 0.65 MM PITCH, PLASTIC, LQFP-52 |
| 文件頁數(shù)： | 75/93頁 |
| 文件大?。?/td> | 1810K |
| 代理商： | M34559G6FP |
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CLRC663
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Preliminary data sheet
COMPANY PUBLIC
Rev. 3.1 — 26 September 2011
171131
82 of 126
NXP Semiconductors
CLRC663
Contactless reader IC
11. Analog Interface and Contactless UART
11.1 General
The integrated contactless UART supports the external host online with framing and error
checking of the protocol requirements up to 848 kbit/s. An external circuit can be
connected to the communication interface pins GPIO0/SIGIN and SIGOUT to modulate
and demodulate the data.
The contactless UART handles the protocol requirements for the communication schemes
in co-operation with the host. The protocol handling itself generates bit- and byte-oriented
framing and handles error detection like Parity and CRC according to the different
contactless communication schemes.
Remark: The size and the tuning of the antenna and the power supply voltage have an
important impact on the achievable operating distance.
11.2 TX Transmitter
The signal delivered on pin TX1 and pin TX2 is the 13.56 MHz carrier modulated by an
envelope signal for energy and data transmission. It can be used to drive an antenna
directly, using a few passive components for matching and filtering, see Section 23
“Application information”. The signal on TX1 and TX2 can be configured by the register
DrvMode, see Section 9.8.1 “TxMode_Reg”.
The modulation index can be set by the TxAmp_Reg.
Following figure shows the general relations during modulation
Note: When changing the continuous wave, the residual carrier also changes, while the
modulation index remains the same.
Fig 24. General dependences of modulation
001aan355
time
influenced by set_clk_mode
envelope
TX ASK100
1: Defined by set_cw_amplitude.
2: Defined by set_residual_carrier.
TX ASK10
(1)
(2)
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相關(guān)代理商/技術(shù)參數(shù) |
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| M34559G6-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M3455AG8FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M3455AG8-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M3455AGCFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M3455AGC-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
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