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參數(shù)資料
| 型號(hào)： | MFRC52201HN1 |
| 廠(chǎng)商： | NXP Semiconductors N.V. |
| 元件分類(lèi)： | 通信及網(wǎng)絡(luò) |
| 英文描述： | Contactless reader IC |
| 封裝： | MFRC52201HN1<SOT617-1 (HVQFN32)|<<http://www.nxp.com/packages/SOT617-1.html<1<Always Pb-free,;MFRC52201HN1<SOT617-1 (HVQFN32)|<<http://www.nxp.com/packages/SOT617-1.html& |
| 文件頁(yè)數(shù)： | 56/92頁(yè) |
| 文件大小： | 691K |
| 代理商： | MFRC52201HN1 |
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MFRC522_35
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
PUBLIC
Rev. 3.5 — 21 June 2010
112135
56 of 92
NXP Semiconductors
MFRC522
Contactless reader IC
9.3.3.6
RFCfgReg register
Configures the receiver gain.
Table 97.
Bit
Symbol
Access
Table 98.
Bit
7
6 to 4
9.3.3.7
GsNReg register
Defines the conductance of the antenna driver pins TX1 and TX2 for the n-driver when the
driver is switched on.
Table 99.
Bit
Symbol
Access
Table 100. GsNReg register bit descriptions
Bit
Symbol
Description
7 to 4
CWGsN
[3:0]
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
3 to 0
ModGsN
[3:0]
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
RFCfgReg register (address 26h); reset value: 48h bit allocation
7
6
5
reserved
RxGain[2:0]
-
R/W
4
3
2
1
0
reserved
-
RFCfgReg register bit descriptions
Symbol
Value
reserved
-
RxGain
[2:0]
000
001
010
011
100
101
110
111
reserved
-
Description
reserved for future use
defines the receiver’s signal voltage gain factor:
18 dB
23 dB
18 dB
23 dB
33 dB
38 dB
43 dB
48 dB
reserved for future use
3 to 0
GsNReg register (address 27h); reset value: 88h bit allocation
7
6
5
CWGsN[3:0]
R/W
4
3
2
ModGsN[3:0]
R/W
1
0
defines the conductance of the output n-driver during periods without
defines the conductance of the output n-driver during periods without
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