mfrc52301hn1-trayb NXP Semiconductors, mfrc52301hn1-trayb Datasheet - Page 58
mfrc52301hn1-trayb
Manufacturer Part Number
mfrc52301hn1-trayb
Description
Contactless Reader Ic
Manufacturer
NXP Semiconductors
Datasheet
1.MFRC52301HN1-TRAYB.pdf
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MFRC523_33
Product data sheet
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9.2.3.6 RFCfgReg register
9.2.3.7 GsNReg register
Configures the receiver gain.
Table 97.
Table 98.
Defines the conductance of the antenna driver pins TX1 and TX2 for the n-driver when the
driver is switched on.
Table 99.
Table 100. GsNReg register bit descriptions
Bit
Symbol
Access
Bit
7
6 to 4
3 to 0
Bit
Symbol
Access
Bit
7 to 4
3 to 0
Symbol
reserved
RxGain
[2:0]
reserved
Symbol
[3:0]
ModGsN
[3:0]
CWGsN
reserved
RFCfgReg register (address 26h); reset value: 48h bit allocation
RFCfgReg register bit descriptions
GsNReg register (address 27h); reset value: 88h bit allocation
7
7
-
All information provided in this document is subject to legal disclaimers.
Value
-
000
001
010
011
100
101
110
111
-
Description
defines the conductance of the output n-driver during periods without
modulation which can be used to regulate the output power and
subsequently current consumption and operating distance
Remark: the conductance value is binary-weighted
during soft Power-down mode the highest bit is forced to logic 1
value is only used if driver TX1 or TX2 is switched on
defines the conductance of the output n-driver during periods without
modulation which can be used to regulate the modulation index
Remark: the conductance value is binary weighted
during soft Power-down mode the highest bit is forced to logic 1
value is only used if driver TX1 or TX2 is switched on
Rev. 3.3 — 5 March 2010
CWGsN[3:0]
6
6
R/W
RxGain[2:0]
Description
reserved for future use
defines the receiver’s signal voltage gain factor:
reserved for future use
115233
18 dB
23 dB
18 dB
23 dB
33 dB
38 dB
43 dB
48 dB
R/W
5
5
4
4
3
3
ModGsN[3:0]
2
2
reserved
Contactless reader IC
R/W
MFRC523
-
© NXP B.V. 2010. All rights reserved.
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