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CLRC663 датащи(PDF) 84 Page - NXP Semiconductors

номер детали CLRC663
подробное описание детали  High performance multi-protocol NFC frontend CLRC663 and CLRC663 plus
PDF  177 Pages
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производитель  NXP [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo NXP - NXP Semiconductors

CLRC663 датащи(HTML) 84 Page - NXP Semiconductors

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NXP Semiconductors
CLRC663
High performance multi-protocol NFC frontend CLRC663 and CLRC663 plus
Bit
Symbol
Description
7 to 6
set_cw_amplitude
Allows reducing the output amplitude of the transmitter by a fix value.
Four different preset values that are subtracted from TVDD can be selected:
0: TVDD -100 mV
1: TVDD -250 mV
2: TVDD -500 mV
3: TVDD -1000 mV
5
RFU
-
4 to 0
set_residual_ carrier
Set the residual carrier percentage. refer to Section 8.6.2.
Table 134. TxAmp bits
9.8.3 TxCon
Bit
7
6
5
4
3
2
1
0
Symbol
OvershootT2
CwMax
TxInv
TxSel
Access
rights
r/w
r/w
r/w
r/w
Table 135. TxCon register (address 2Ah)
Bit
Symbol
Description
7 to 4
OvershootT2
Specifies the length (number of carrier clocks) of the additional modulation for overshoot
prevention. Refer to Section 8.6.2.1.
3
Cwmax
Set amplitude of continuous wave carrier to the maximum.
If set, set_cw_amplitude in Register TxAmp has no influence on the continuous
amplitude.
2
TxInv
If set, the resulting modulation signal defined by TxSel is inverted
1 to 0
TxSel
Defines which signal is used as source for modulation
00b ... no modulation
01b ... TxEnvelope
10b ... SigIn
11b ... RFU
Table 136. TxCon bits
9.8.4 Txl
Bit
7
6
5
4
3
2
1
0
Symbol
OvershootT1
tx_set_iLoad
Access
rights
r/w
r/w
Table 137. Txl register (address 2Bh)
CLRC663
All information provided in this document is subject to legal disclaimers.
© 2024 NXP B.V. All rights reserved.
Product data sheet
Rev. 5.3 — 3 January 2024
84 / 177



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