MFRC50001T/0FE,112 NXP Semiconductors, MFRC50001T/0FE,112 Datasheet - Page 29

• Manufacturer Part Number: MFRC50001T/0FE,112
• Description: IC MIFARE READER 32-SOIC
• Manufacturer: NXP Semiconductors
• Series: MIFARE®r

Specifications of MFRC50001T/0FE,112

• Rf Type: Read Only
• Frequency: 13.56MHz
• Features: ISO14443-A, ISO14443-B, ISO15693
• Package / Case: 32-SOIC (0.300", 7.50mm Width)
• Product: RFID Readers
• Operating Temperature Range: - 25 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 568-2222-5; 935268039112; MFRC500; MFRC51T0FED

NXP Semiconductors
Table 22.
MANT = Mantissa; EXP= Exponent.
MFRC500_33
Product data sheet
PUBLIC
GsCfgCW,
GsCfgMod
(decimal)
10
35
22
12
13
23
14
50
36
15
11
TX1 and TX2 source resistance of n-channel driver transistor against GsCfgCW or GsCfgMod
EXP
EXP
(decimal)
9.9.3.2 Calculating the relative source resistance
9.9.3.3 Calculating the effective source resistance
GsCfgCW
GsCfgMod
0
0
2
1
0
0
1
0
3
2
0
The reference source resistance R
The reference source resistance (R
using ModConductance register’s GsCfgMod[5:0].
Wiring resistance (R
resistance that is relevant when pins TX1 and TX2 are switched to low-impedance. The
additional resistance for pin TX1 (R
Equation
Effective resistance (R
byte) read from the Product Information Field (see
measured during the production test with CwConductance register’s
GsCfgCW[5:0] = 01h.
To calculate the driver resistance for a specific value set in GsCfgMod[5:0], use
Equation
R
R
R
,
S wire
S ref
Sx
(
(
MANT
MANT
(decimal)
=
)
)TX1
(
=
R
7.
8.
S ref
------------------------------------------------------------------------------- -
MANT
10
11
12
13
14
15
GsCfgCW
GsCfgMod
(
3
6
7
2
4
≈
500 mΩ
)maxP
All information provided in this document is subject to legal disclaimers.
GsCfgCW
,
–
R
(Ω)
R
S(ref)
S(wire)
0.1000
0.0909
0.0901
0.0870
0.0833
0.0769
0.0745
0.0714
0.0701
0.0676
0.0667
S wire
Rev. 3.3 — 15 March 2010
(
Sx
1
•
): The source resistances of the driver transistors (RsMaxP
⎛
⎝
): Wiring and bonding add a constant offset to the driver
)TX1
77
----- -
40
⎞
⎠
048033
EXP
) R
GsCfgCW,
GsCfgMod
(decimal)
•
GsCfgCW
S(ref)
S(wire)TX1
S(ref)
S rel
(
55
46
47
56
57
58
59
60
61
62
63
can be calculated using
) during the modulation phase can be calculated
)
+
Highly Integrated ISO/IEC 14443 A Reader IC
R
) can be set approximately as shown in
S wire
(
EXP
EXP
(decimal)
)TX1
GsCfgCW
GsCfgMod
Section 9.2.1 on page
3
2
2
3
3
3
3
3
3
3
3
,
MANT
MANT
(decimal)
Equation
GsCfgCW
GsCfgMod
14
15
10
12
13
14
15
11
7
8
9
MFRC500
© NXP B.V. 2010. All rights reserved.
11) are
6.
,
R
(Ω)
…continued
S(ref)
0.0200
0.0193
0.0180
0.0175
0.0156
0.0140
0.0127
0.0117
0.0108
0.0100
0.0093
29 of 110
(6)
(7)
(8)