WBLXT9785HE.D0-865114 Cortina Systems Inc, WBLXT9785HE.D0-865114 Datasheet - Page 172
WBLXT9785HE.D0-865114
Manufacturer Part Number
WBLXT9785HE.D0-865114
Description
Manufacturer
Cortina Systems Inc
Datasheet
1.WBLXT9785HE.D0-865114.pdf
(221 pages)
Specifications of WBLXT9785HE.D0-865114
Lead Free Status / RoHS Status
Compliant
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LXT9785/LXT9785E
Datasheet
249241, Revision 11.0
16 April 2007
Table 55
Table 56
Table 57
Cortina Systems
Digital I/O DC Electrical Characteristics (VCCIO = 3.3 V +/- 5%)
Digital I/O DC Electrical Characteristics – SD Pins
Required Clock Characteristics
®
Input Low voltage
Input High voltage
Input current
Output Low voltage
Output Low voltage (LED m _ n _L
pins)
Output High voltage
1. Typical values are at 25 °C and are for design aid only; not guaranteed and not subject to production
Input Low voltage
Input High voltage
Input Low voltage
Input High voltage
1. Typical values are at 25 °C and are for design aid only; not guaranteed and not subject to production
2. For 2.5 V operation, SD_2P5V = VCCPECL and VCCPECL=2.5 V.
3. For 3.3 V operation, SD_2P5V = GNDPECL or Floating and VCCPECL=3.3 V.
SMII Input frequency
RMII Input frequency
Input clock frequency tolerance
Input clock duty cycle
Input clock duty cycle - REFCLK,
TxCLK
Output RxCLK duty cycle
1. Parameter is guaranteed by design; not subject to production testing.
2. Typical values are at 25 °C and are for design aid only; not guaranteed and not subject to production
LXT9785 and LXT9785E Advanced 8-Port 10/100 Mbps PHY Transceivers
testing.
testing.
testing.
1
Parameter
Parameter
Parameter
1
1
Sym
V
V
V
V
Sym
IH
IH
IL
IL
Tdc
Tdc
Tdc
V
Δ f
f
f
OL
Sym
V
V
V
V
I
OL
-LED
OH
IL
IH
I
0.69
1.34
1.49
2.14
Min
2.5 V Operation
3.3 V Operation
Min
35
40
45
–
–
–
-100
Min
2.0
2.4
–
–
–
Typ
Typ
125
0.8
1.6
1.6
2.4
50
50
50
50
–
1
2
Typ1
–
–
–
–
–
–
Max
± 50
Max
1.03
1.62
1.83
2.42
65
60
55
–
–
Max
100
0.8
0.2
0.5
–
–
Units
Units
MHz
MHz
ppm
%
%
%
V
V
V
V
Units
μ A
V
V
V
V
V
6.0 Test Specifications
SMII/SS-SMII selection
VCCPECL = 2.5 V
VCCPECL = 2.5 V
VCCPECL = 3.3 V
VCCPECL = 3.3 V
Test Conditions
Test Conditions
RMII selection
SS-SMII only
Test Conditions
0.0 < V
I
I
I
OL
OH
OL
–
–
–
= 10 mA
= 4 mA
= -4 mA
–
–
I
< V
Page 172
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