mfrc531 NXP Semiconductors, mfrc531 Datasheet - Page 31

• Manufacturer Part Number: mfrc531
• Description: Iso/iec 14443 Reader Ic
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 26.
MANT = Mantissa; EXP = Exponent.
MFRC531_34
Product data sheet
PUBLIC
GsCfgCW,
GsCfgMod
(decimal)
16
32
48
17
33
18
19
49
34
20
21
10
35
22
12
13
23
14
50
36
15
11
0
1
2
3
4
5
6
7
8
9
TX1 and TX2 source resistance of n-channel driver transistor against GsCfgCW or GsCfgMod
EXP
EXP
(decimal)
9.9.3.1 Source resistance table
GsCfgCW
GsCfgMod
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
0
3
2
0
,
MANT
MANT
(decimal)
10
11
12
13
14
15
GsCfgCW
GsCfgMod
0
0
0
0
1
1
2
3
1
2
4
5
3
6
7
1
2
4
8
9
5
3
6
7
2
4
,
R
(Ω)
S(ref)
Rev. 3.4 — 26 January 2010
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
0.1043
0.1000
0.0909
0.0901
0.0870
0.0833
0.0769
0.0745
0.0714
0.0701
0.0676
0.0667
0.1111
-
-
-
-
056634
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
59
60
61
62
63
EXP
EXP
(decimal)
GsCfgCW
GsCfgMod
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
3
3
3
3
3
,
MANT
MANT
(decimal)
ISO/IEC 14443 reader IC
GsCfgCW
GsCfgMod
10
12
13
14
15
10
12
13
14
15
10
12
13
14
15
11
11
11
8
9
5
3
6
7
4
8
9
5
6
7
8
9
MFRC531
© NXP B.V. 2010. All rights reserved.
,
R
(Ω)
S(ref)
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
0.0127
0.0117
0.0108
0.0100
0.0093
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