LAN9730 Datasheet, PDF (200/222 Pages) SMSC Corporation – High-Speed Inter-Chip (HSIC) USB 2.0

LAN9730/LAN9730i
TABLE 7-11: I/O BUFFER CHARACTERISTICS (CONTINUED)
Parameter
ICLK Type Buffer (XI Input)
Symbol
Min.
Typ.
Max.
Unit
Note
Note 7-6
Low Input Level
V_ILI
0.35
V
High Input Level
V_IHI
0.8
V
Note 7-5
This specification applies to all inputs and tri-stated bi-directional pins. Internal pull-down and pull-up
resistors add +/- 50 µA per-pin (typical).
Note 7-6
XI can optionally be driven from a 25 MHz single-ended clock oscillator.
TABLE 7-12: 100BASE-TX TRANSCEIVER CHARACTERISTICS
Parameter
Symbol Min.
Typ.
Max.
Unit
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
V_PPH
V_PPL
V_SS
T_RF
T_RFS
D_CD
V_OS
950
-950
98
3.0
-
35
-
-
1050 mVpk
-
-1050 mVpk
-
102
%
-
5.0
ns
-
0.5
ns
50
65
%
-
5
%
1.4
ns
Note 7-7
Measured at line side of transformer, line replaced by 100 Ω (+/-1%) resistor.
Note 7-8
Offset from 16 ns pulse width at 50% of pulse peak.
Note 7-9
Measured differentially.
Note
Note 7-7
Note 7-7
Note 7-7
Note 7-7
Note 7-7
Note 7-8
Note 7-9
TABLE 7-13: 10BASE-T TRANSCEIVER CHARACTERISTICS
Parameter
Symbol Min. Typ. Max. Unit
Transmitter Peak Differential Output Voltage
V_OUT
2.2
2.5
2.8
V
Receiver Differential Squelch Threshold
V_DS
300
420 585
mV
Note 7-10 Min/max. voltages guaranteed as measured with 100 Ω resistive load.
Note
Note 7-10
DS00001946A-page 200
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