LAN9118_05 SMSC [SMSC Corporation], LAN9118_05 Datasheet - Page 124

• Manufacturer Part Number: LAN9118_05
• Description: High Performance Single-Chip 10/100 Non-PCI Ethernet Controller
• Manufacturer: SMSC [SMSC Corporation]

Revision 1.1 (05-17-05)
7.5
Peak Differential Output Voltage
High
Peak Differential Output Voltage
Low
Signal Amplitude Symmetry
Signal Rise & Fall Time
Rise & Fall Time Symmetry
Duty Cycle Distortion
Overshoot & Undershoot
Jitter
Transmitter Peak Differential
Output Voltage
Receiver Differential Squelch
Threshold
PARAMETER
PARAMETER
Note 7.4
Note 7.5
Note 7.6
Note 7.7
The LAN9118 can accept either a 25MHz crystal (preferred) or a 25 MHz clock oscillator (±50 PPM)
input. The LAN9118 shares the 25MHz clock oscillator input (CLKIN) with the crystal input
XTAL1/CLKIN (pin 6).
The Input Clock Duty Cycle is 40% minimum, 50% typical and 60% maximum.
It is recommended that a crystal utilizing matching parallel load capacitors be used for the LAN9118
crystal input/output signals (XTAL1, XTAL2). See
specifications.
Clock Circuit
Measured at the line side of the transformer, line replaced by 100Ω (+/- 1%) resistor.
Offset from16 nS pulse width at 50% of pulse peak
Measured differentially.
Measured at the line side of the transformer, line replaced by 100Ω (+/- 1%) resistor.
Table 7.4 100BASE-TX Tranceiver Characteristics
Table 7.5 10BASE-T Tranceiver Characteristics
SYMBOL
SYMBOL
V
V
V
T
D
V
V
T
V
PPH
RFS
OUT
PPL
OS
SS
RF
CD
DS
DATASHEET
-950
MIN
950
MIN
300
3.0
2.2
98
35
-
-
124
High Performance Single-Chip 10/100 Non-PCI Ethernet Controller
Table 7.6, "LAN9118 Crystal Specifications"
TYP
TYP
420
2.5
50
-
-
-
-
-
-
-1050
MAX
1050
MAX
102
585
5.0
0.5
1.4
2.8
65
5
UNITS
UNITS
mVpk
mVpk
mV
nS
nS
nS
%
%
%
V
Note 7.4
Note 7.4
Note 7.4
Note 7.4
Note 7.4
Note 7.5
Note 7.6
Note 7.7
NOTES
NOTES
SMSC LAN9118
for crystal
Datasheet