lan9312 Standard Microsystems Corp., lan9312 Datasheet - Page 444
lan9312
Manufacturer Part Number
lan9312
Description
Lan9312 High Performance Two Port 10/100 Managed Ethernet Switch With 32-bit Non-pci Cpu Interface
Manufacturer
Standard Microsystems Corp.
Datasheet
1.LAN9312.pdf
(458 pages)
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Revision 1.2 (04-08-08)
15.5
15.5.1
Overshoot and Undershoot
Jitter
Transmitter Peak Differential Output Voltage
Receiver Differential Squelch Threshold
Note 15.7 Measured at line side of transformer, line replaced by 100 Ω (+/- 1%) resistor.
Note 15.8 Offset from 16nS pulse width at 50% of pulse peak.
Note 15.9 Measured differentially.
Note 15.10 Min/max voltages guaranteed as measured with 100 Ω resistive load.
This section details the various AC timing specifications of the LAN9312.
Note: The I
Equivalent Test Load
Output timing specifications assume the 25pF equivalent test load illustrated in
AC Specifications
PARAMETER
PARAMETER
Specification for detailed I
2
C timing adheres to the Philips I
Table 15.4 100BASE-TX Transceiver Characteristics
Table 15.5 10BASE-T Transceiver Characteristics
OUTPUT
Figure 15.1 Output Equivalent Test Load
High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
2
SYMBOL
SYMBOL
C timing information.
DATASHEET
V
V
V
OUT
OS
DS
444
MIN
MIN
300
2.2
2
-
C-Bus Specification . Refer to the Philips I
25 pF
TYP
TYP
420
2.5
-
MAX
MAX
585
1.4
2.8
5
UNITS
UNITS
Figure 15.1
mV
nS
%
V
SMSC LAN9312
Note 15.10
Note 15.9
NOTES
NOTES
below.
Datasheet
2
C-Bus
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