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LAN8720AI 데이터시트(PDF) 67 Page - SMSC Corporation

부품명 LAN8720AI
상세설명  Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
PDF  79 Pages
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제조업체  SMSC [SMSC Corporation]
홈페이지  http://www.smsc.com
Logo SMSC - SMSC Corporation

LAN8720AI 데이터시트(HTML) 67 Page - SMSC Corporation

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Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
Datasheet
SMSC LAN8720A/LAN8720Ai
67
Revision 1.4 (08-23-12)
DATASHEET
Note 5.10 This specification applies to all inputs and tri-stated bi-directional pins. Internal pull-down
and pull-up resistors add +/- 50uA per-pin (typical).
Note 5.11
Measured at line side of transformer, line replaced by 100
Ω (+/- 1%) resistor.
Note 5.12 Offset from 16nS pulse width at 50% of pulse peak.
Note 5.13 Measured differentially.
Table 5.4 Variable I/O Buffer Characteristics
PARAMETER
SYMBOL
MIN
1.8V
TYP
2.5V
TYP
3.3V
TYP
MAX
UNITS
NOTES
VIS Type Input Buffer
Low Input Level
High Input Level
Neg-Going Threshold
Pos-Going Threshold
Schmitt Trigger
Hysteresis (VIHT - VILT)
Input Leakage
(VIN = VSS or VDDIO)
Input Capacitance
VILI
VIHI
VILT
VIHT
VHYS
IIH
CIN
-0.3
0.64
0.81
102
-10
0.83
0.99
158
1.15
1.29
136
1.41
1.65
138
3.6
1.76
1.90
288
10
2
V
V
V
V
mV
uA
pF
Schmitt trigger
Schmitt trigger
Note 5.10
VO8 Type Buffers
Low Output Level
High Output Level
VOL
VOH
VDDIO - 0.4
0.4
V
V
IOL = 8mA
IOH = -8mA
VOD8 Type Buffer
Low Output Level
VOL
0.4
V
IOL = 8mA
Table 5.5 100BASE-TX Transceiver Characteristics
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Peak Differential Output Voltage High
VPPH
950
-
1050
mVpk
Note 5.11
Peak Differential Output Voltage Low
VPPL
-950
-
-1050
mVpk
Note 5.11
Signal Amplitude Symmetry
VSS
98
-
102
%
Note 5.11
Signal Rise and Fall Time
TRF
3.0
-
5.0
nS
Note 5.11
Rise and Fall Symmetry
TRFS
--
0.5
nS
Note 5.11
Duty Cycle Distortion
DCD
35
50
65
%
Note 5.12
Overshoot and Undershoot
VOS
--
5
%
Jitter
1.4
nS
Note 5.13



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