LAN9313 Datasheet, PDF (389/398 Pages) SMSC Corporation – Three Port 10/100 Managed Ethernet Switch with MII

Three Port 10/100 Managed Ethernet Switch with MII
Datasheet
Table 14.4 100BASE-TX Transceiver Characteristics
PARAMETER
Overshoot and Undershoot
Jitter
SYMBOL MIN
V_OS
-
TYP
MAX UNITS NOTES
-
5
%
1.4
nS
Note 14.10
Note 14.8 Measured at line side of transformer, line replaced by 100Ω (+/- 1%) resistor.
Note 14.9 Offset from 16nS pulse width at 50% of pulse peak.
Note 14.10 Measured differentially.
Table 14.5 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 NOTES
V
Note 14.11
mV
Note 14.11 Min/max voltages guaranteed as measured with 100Ω resistive load.
14.5
14.5.1
AC Specifications
This section details the various AC timing specifications of the LAN9313/LAN9313i.
Note: The I²C timing adheres to the Philips I²C-Bus Specification. Refer to the Philips I²C-Bus
Specification for detailed I²C timing information.
Note: The MII/SMI timing adheres to the IEEE 802.3 specification. Refer to the IEEE 802.3
specification for detailed MII timing information.
Equivalent Test Load
Output timing specifications assume the 25pF equivalent test load illustrated in Figure 14.1 below.
OUTPUT
25 pF
Figure 14.1 Output Equivalent Test Load
SMSC LAN9313/LAN9313i
389
DATASHEET
Revision 1.2 (04-08-08)