SMSC flexpwr lan8710i Manual De Usuario
MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR
®
Technology in a Small Footprint
Datasheet
SMSC LAN8710/LAN8710i
71
Revision 1.0 (04-15-09)
DATASHEET
Note 7.4
Measured at the line side of the transformer, line replaced by 100
Ω (± 1%) resistor.
Note 7.5
Offset from 16 nS pulse width at 50% of pulse peak
Note 7.6
Measured differentially.
Table 7.10 Internal Pull-Up / Pull-Down Configurations
NAME
PULL-UP OR PULL-DOWN
nINT/TXER/TXD4
Pull-up
TXEN
Pull-down
RXD0/MODE0
Pull-up
RXD1/MODE1
Pull-up
RXD2/RMIISEL
Pull-down
RXD3/PHYAD2
Pull-down
RXER/RXD4/PHYAD0
Pull-down
RXCLK/PHYAD1
Pull-down
COL/CRS_DV/MODE2
Pull-up
CRS
Pull-down
LED1/REGOFF
Pull-down
LED2/nINTSEL
Pull-up
MDIO
Pull-up
nRST
Pull-up
Table 7.11 100Base-TX Transceiver Characteristics
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Peak Differential Output Voltage High
V
PPH
950
-
1050
mVpk
Peak Differential Output Voltage Low
V
PPL
-950
-
-1050
mVpk
Signal Amplitude Symmetry
V
SS
98
-
102
%
Signal Rise & Fall Time
T
RF
3.0
-
5.0
nS
Rise & Fall Time Symmetry
T
RFS
-
-
0.5
nS
Duty Cycle Distortion
D
CD
35
50
65
%
Overshoot & Undershoot
V
OS
-
-
5
%
Jitter
1.4
nS