PN5120A0HN/C1,518 NXP Semiconductors, PN5120A0HN/C1,518 Datasheet - Page 82
PN5120A0HN/C1,518
Manufacturer Part Number
PN5120A0HN/C1,518
Description
IC TRANSMISSION MOD 40-HVQFN
Manufacturer
NXP Semiconductors
Datasheet
1.PN5120A0HN1C2118.pdf
(125 pages)
Specifications of PN5120A0HN/C1,518
Rf Type
Read / Write
Frequency
13.56MHz
Features
ISO14443-A, ISO14443-B
Package / Case
40-VFQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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PN512
Product data sheet
COMPANY PUBLIC
12.4 Data mode detector
The sensitivity of the RF level detector is adjustable in a 4-bit range using the bits RFLevel
in register RFCfgReg. The sensitivity itself depends on the antenna configuration and
tuning.
Possible sensitivity levels at the RX pin are listed in the
Table 154. Setting of the bits RFlevel in register RFCfgReg (RFLevel amplifier deactivated)
To increase the sensitivity of the RF level detector an amplifier can be activated by setting
the bit RFLevelAmp in register RFCfgReg to 1.
Remark: During soft Power-down mode the RF level detector amplifier is automatically
switched off to ensure that the power consumption is less than 10 μA at 3 V.
Remark: With typical antennas lower sensitivity levels can provoke misleading results
because of intrinsic noise in the environment.
Note: It is recommended to use the bit RFLevelAmp only with higher RF level settings.
The Data mode detector gives the possibility to detect received signals according to the
ISO/IEC 14443A/MIFARE, FeliCa or NFCIP-1 schemes at the standard transfer speeds
for 106 kbit, 212 kbit and 424 kbit in order to prepare the internal receiver in a fast and
convenient way for further data processing.
The Data mode detector can only be activated by the AutoColl command. The mode
detector resets, when no external RF field is detected by the RF level detector. The Data
mode detector could be switched off during the AutoColl command by setting bit
ModeDetOff in register ModeReg to 1.
V~Rx [Vpp]
~2
~1.4
~0.99
~0.69
~0.49
~0.35
~0.24
~0.17
~0.12
~0.083
~0.058
~0.041
~0.029
~0.020
~0.014
~0.010
All information provided in this document is subject to legal disclaimers.
Rev. 3.6 — 10 March 2011
111336
RFLevel
1111
1110
1101
1100
1011
1010
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000
Table
153.
Transmission module
© NXP B.V. 2011. All rights reserved.
PN512
82 of 125
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