lxt9785 Intel Corporation, lxt9785 Datasheet - Page 174
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lxt9785
Manufacturer Part Number
lxt9785
Description
Advanced 8-port 10/100 Mbps Phy Transceivers
Manufacturer
Intel Corporation
Datasheet
1.LXT9785.pdf
(226 pages)
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LXT9785 and LXT9785E Advanced 8-Port 10/100 Mbps PHY Transceivers
176
Table 57. Intel
Table 58. Intel
Peak differential output
voltage
Signal amplitude symmetry
Signal rise/fall time
Rise/fall time symmetry
Duty cycle distortion
Overshoot
Jitter magnitude (measured
differentially)
Peak-to-peak differential
output voltage
Signal rise/fall time
Jitter magnitude (measured
differentially)
Peak differential input
voltage
Common mode input range
Input Low Voltage (SD pins)
Input High Voltage (SD Pins)
1. Typical values are at 25 °C and are for design aid only; not guaranteed and not subject to production
2. Measured at the line side of the transformer, line replaced by 100:(+/-1%) resistor.
1. Typical values are at 25 °C and are for design aid only; not guaranteed and not subject to production
2. 20 - 80 percent into 100 : equivalent load of a typical fiber transceiver.
testing.
testing.
®
®
LXT9785/LXT9785E 100BASE-TX Transceiver Characteristics
LXT9785/LXT9785E 100BASE-FX Transceiver Characteristics
Parameter
Parameter
V
V
Sym
DIFFP
t
V
V
CMIR
V
Sym
tx-jit
Vss
t
t
V
V
t
tx-jit
rf
IH
IP
IL
t
rfs
–
rf
O
P
-
P
-1.84
-1.04
0.55
V
V
Min
0.6
0.95
Min
–
–
–
CC
CC
98
3
–
–
–
–
Transmitter
Receiver
Typ
1.44
Typ
–
–
–
–
–
–
–
–
–
–
–
1
1
V
+/- 0.5
CC
Max
1.05
102
-1.63
-0.88
0.5
1.4
Max
V
V
1.8
1.4
5
5
–
–
CC
CC
- 0.5
Units
ns
ns
ns
ns
%
%
V
Units
ns
ns
Revision Date: August 28, 2003
V
V
V
V
V
Document Number: 249241
Offset from 16 ns pulse
width at 50% of pulse
Test Conditions
Revision Number: 007
Test Conditions
Note 2
Note 2
Note 2
Note 2
peak
Note 2
–
–
Datasheet
–
–
–
–
–
–
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