參數(shù)資料
型號: MFRC53001T
廠商: NXP Semiconductors N.V.
元件分類: 通信及網(wǎng)絡
英文描述: ISO-IEC 14443 A Reader IC
封裝: MFRC53001T/0FE<SOT287-1 (SO32)|<<http://www.nxp.com/packages/SOT287-1.html<1<week 5, 2005,;MFRC53001T/0FE<SOT287-1 (SO32)|<<http://www.nxp.com/packages/SOT287-1.html<1
文件頁數(shù): 29/115頁
文件大?。?/td> 2590K
代理商: MFRC53001T
MFRC530_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 — 6 July 2010
057433
29 of 115
NXP Semiconductors
MFRC530
ISO/IEC 14443 A Reader IC
9.9.3
Antenna driver output source resistance
The output source conductance of pins TX1 and TX2 can be adjusted between 1
Ω
and
100
Ω
using the CwConductance register GsCfgCW[5:0] bits.
The output source conductance of pins TX1 and TX2 during the modulation phase can be
adjusted between 1
Ω
and 100
Ω
using the ModConductance register GsCfgMod[5:0] bits.
The values are relative to the reference resistance (R
S(ref)
) which is measured during the
production test and stored in the MFRC530 EEPROM. It can be read from the product
information field (see
Section 9.2.1 on page 13
). The electrical specification can be found
in
Section 13.3.3 on page 91
.
9.9.3.1
Source resistance table
Table 27.
MANT = Mantissa; EXP= Exponent.
GsCfgCW,
GsCfgMod
(decimal)
(decimal)
0
16
32
48
1
17
2
3
33
18
4
5
19
6
7
49
34
20
8
9
21
10
11
35
22
12
13
TX1 and TX2 source resistance of n-channel driver transistor against GsCfgCW or GsCfgMod
EXP
GsCfgCW
,
EXP
GsCfgMod
MANT
GsCfgCW
,
MANT
GsCfgMod
(decimal)
0
0
0
0
1
1
2
3
1
2
4
5
3
6
7
1
2
4
8
9
5
10
11
3
6
12
13
R
S(ref)
(
Ω
)
GsCfgCW,
GsCfgMod
(decimal)
24
25
37
26
27
51
38
28
29
39
30
52
31
40
41
53
42
43
54
44
45
55
46
47
56
57
58
EXP
GsCfgCW
,
EXP
GsCfgMod
(decimal)
MANT
GsCfgCW
,
MANT
GsCfgMod
(decimal)
8
9
5
10
11
3
6
12
13
7
14
4
15
8
9
5
10
11
6
12
13
7
14
15
8
9
10
R
S(ref)
(
Ω
)
0
1
2
3
0
1
0
0
2
1
0
0
1
0
0
3
2
1
0
0
1
0
0
2
1
0
0
-
-
-
-
1
1
2
1
1
3
2
1
1
2
1
3
1
2
2
3
2
2
3
2
2
3
2
2
3
3
3
0.0652
0.0580
0.0541
0.0522
0.0474
0.0467
0.0450
0.0435
0.0401
0.0386
0.0373
0.0350
0.0348
0.0338
0.0300
0.0280
0.0270
0.0246
0.0234
0.0225
0.0208
0.0200
0.0193
0.0180
0.0175
0.0156
0.0140
1.0000
0.5217
0.5000
0.3333
0.2703
0.2609
0.2500
0.2000
0.1739
0.1667
0.1429
0.1402
0.1351
0.1304
0.1250
0.1111
0.1043
0.1000
0.0909
0.0901
0.0870
0.0833
0.0769
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