mfrc522 NXP Semiconductors, mfrc522 Datasheet - Page 88

• Manufacturer Part Number: mfrc522
• Description: Contactless Reader Ic
• Manufacturer: NXP Semiconductors

NXP Semiconductors
112132
Product data sheet
23.3 RX Input Voltage Range
23.4 RX Input Sensitivity
23.5 Clock Frequency
Table 169: RX Input Voltage Range
Figure 29
Table 170: RX Input Sensitivity
Figure 29
Table 171: Clock Frequency
Symbol
V
V
Symbol
V
Symbol
f
d
t
OSCIN
jitter
Fig 29. RX Input Voltage Range
FEC
RX,MinIV,Man
RX,MaxIV,Man
RXMod,Man
outlines the voltage definitions.
outlines the voltage definitions.
Parameter
Clock Frequency
Duty Cycle of Clock
Frequency
Jitter of Clock Edges
Parameter
Minimum
modulation voltage
Input Voltage Range
Vmid
Parameter
Minimum Input voltage,
Manchester Coded
Maximum Input voltage,
Manchester Coded
0V
V
in,RX
-1V
AVDD+1V
Rev. 3.2 — 22 May 2007
13.56MHz
carrier
Conditions
AV
V
DD
RX,IV,man
Conditions
= 3 V, RxGain = 7
Conditions
AV
AV
Manchester Coded Signals
DD
DD
= 3 V
= 3 V
V
RXMod,man
Min
-
40
-
Min
-
-
Min
-
Typ
27.12
50
-
Contactless Reader IC
Typ
100
4
MFRC522
Typ
5
© NXP B.V. 2007. All rights reserved.
Max
-
60
10
Max
-
-
Max
-
Unit
MHz
%
ps, RMS
88 of 109
Unit
mVpp
Vpp
Unit
mV