LAN9514_12 Datasheet, PDF (45/52 Pages) SMSC Corporation – USB 2.0 Hub and 10/100 Ethernet Controller

USB 2.0 Hub and 10/100 Ethernet Controller
Datasheet
Note 4.6 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 4.7 This is the total 5.5V input leakage for the entire device.
Note 4.8 XI can optionally be driven from a 25MHz single-ended clock oscillator.
Table 4.6 100BASE-TX Transceiver Characteristics
PARAMETER
Peak Differential Output Voltage High
Peak Differential Output Voltage Low
Signal Amplitude Symmetry
Signal Rise and Fall Time
Rise and Fall Symmetry
Duty Cycle Distortion
Overshoot and Undershoot
Jitter
SYMBOL
V_PPH
V_PPL
V_SS
T_RF
T_RFS
D_CD
V_OS
MIN
950
-950
98
3.0
-
35
-
TYP
MAX
-
1050
-
-1050
-
102
-
5.0
-
0.5
50
65
-
5
1.4
UNITS
mVpk
mVpk
%
nS
nS
%
%
nS
NOTES
Note 4.9
Note 4.9
Note 4.9
Note 4.9
Note 4.9
Note 4.10
Note 4.11
Note 4.9 Measured at line side of transformer, line replaced by 100Ω (+/- 1%) resistor.
Note 4.10 Offset from 16nS pulse width at 50% of pulse peak.
Note 4.11 Measured differentially.
Table 4.7 10BASE-T Transceiver Characteristics
PARAMETER
SYMBOL MIN
Transmitter Peak Differential Output Voltage V_OUT
2.2
Receiver Differential Squelch Threshold
V_DS
300
TYP
MAX
2.5
2.8
420
585
UNITS
V
mV
NOTES
Note 4.12
Note 4.12 Min/max voltages guaranteed as measured with 100Ω resistive load.
SMSC LAN9514/LAN9514i
45
DATASHEET
Revision 1.2 (02-29-12)