參數(shù)資料
型號(hào)： M34559G6FP
元件分類(lèi)： 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(yè)數(shù)： 76/93頁(yè)
文件大?。?/td> 1810K
代理商： M34559G6FP
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
83 of 126
NXP Semiconductors
CLRC663
Contactless reader IC
The registers Section 9.8 and Section 9.10 control the data rate, the framing during
transmission and the setting of the antenna driver to support the requirements at the
different specified modes and transfer speeds.
The following abbreviations are used:
RF: 13.56 MHz clock derived from 27.12 MHz quartz divided by 2
RF_n: inverted 13.56 MHz clock
RF_hs: RF high side push
RF_hs_n: RF high side push negative
RF_ls: RF low side pull
RF_ls_n: RF low side pull negative
Z: High impedance
To adjust the modulation index following parameter has to be considered:
Table 220: Settings for TX1/2
Envelope
set_clk_mode
invtx1/2
Tx1/2
Remarks
1
X
0
RF
RF clock depending on invtx
1
X
1
RF_n
RF clock depending on invtx
0
0b000
X
Z
high impedance
0
0b001
X
0
output pulled to 0 in any case
0
0b010
X
1
output pulled to 1 in any case
0
0b110
0
RF_hs
open drain, only high side (push) MOS
supplied with clock, clock parity defined by
invtx; low side MOS is off
0
0b110
1
RF_hs_n
open drain, only high side (push) MOS
supplied with clock, clock polarity defined
by invtx; low side MOS is off
0
0b101
0
RF_ls
open drain, only low side (pull) MOS
supplied with clock, clock parity defined by
invtx; high side MOS is off
0
0b101
1
RF_ls_n
open drain, only low side (pull) MOS
supplied with clock, clock parity defined by
invtx; high side MOS is off
0
0b111
0
RF
push/pull Operation, clock polarity defined
by invtx; setting for 10 % modulation
0
0b111
1
RF_n
push/pull Operation, clock polarity defined
by invtx; setting for 10 % modulation
Table 221. Settings for set_residual_carrier and corresponding residual carrier
set_residual_carrier
Residual carrier [%]
Modulation index [%]
099
0.5
198
1.0
296
2.0
394
3.1
491
4.7
589
5.8
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