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SLRC400 Datasheet(PDF) 49 Page - NXP Semiconductors

Part # SLRC400
Description  ICODE reader IC
PDF  101 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

SLRC400 Datasheet(HTML) 49 Page - NXP Semiconductors

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SLRC400_33
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
PUBLIC
Rev. 3.3 — 23 March 2010
054333
49 of 101
NXP Semiconductors
SLRC400
ICODE reader IC
9.5.3.3 CwConductance register
Selects the conductance of the antenna driver pins TX1 and TX2.
See Section 8.9.3 on page 25 for detailed information about GsCfgCW[5:0].
9.5.3.4 ModConductance register
Defines the driver output conductance.
See Section 8.9.3 on page 25 for detailed information about GsCfgMod[5:0].
2
TX2Cw
1
the output on pin TX2 is a continuously unmodulated
13.56 MHz carrier
0
enables modulation of the 13.56 MHz carrier signal
1
TX2RFEn
1
the output signal on pin TX2 is the 13.56 MHz carrier
modulated by the transmission data
0
TX2 is driven at a constant output level
0
TX1RFEn
1
the output signal on pin TX1 is the 13.56 MHz carrier
modulated by the transmission data
0
TX1 is driven at a constant output level
Table 64.
TxControl register bit descriptions
Bit
Symbol
Value
Description
Table 65.
CwConductance register (address: 12h) reset value: 0011 1111b, 3Fh bit
allocation
Bit
7
6
5
4
3
2
1
0
Symbol
00
GsCfgCW[5:0]
Access
R/W
R/W
R/W
Table 66.
CwConductance register bit descriptions
Bit
Symbol
Description
7 to 6
00
these values must not be changed
5 to 0
GsCfgCW[5:0]
defines the Cwconductance register value for the output driver. This
can be used to regulate the output power/current consumption and
operating distance.
Table 67.
ModConductance register (address: 13h) reset value: 0000 0101b, 05h bit
allocation
Bit
7
6
5
4
3
2
1
0
Symbol
00
GsCfgMod[5:0]
Access
R/W
R/W
R/W
Table 68.
ModConductance register bit descriptions
Bit
Symbol
Description
7 to 6
00
these values must not be changed
5 to 0
GsCfgMod[5:0]
defines the ModConductance register value for the output
driver during modulation. This is used to regulate the
modulation index.



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