
LXT9785 and LXT9785E Advanced 8-Port 10/100 Mbps PHY Transceivers
Datasheet
173
Document Number: 249241
Revision Number: 010
Revision Date: 30-May-2006
6.0
Test Specifications
Note:
the LXT9785/LXT9785E. These specifications are not guaranteed and are subject to change
without notice. Minimum and maximum values listed in
Table 53 through
Table 81 apply over the
recommended operating conditions specified in
Table 52.
Table 51. Absolute Maximum Ratings
Parameter
Sym
Min
Max
Units
Supply voltage
VCCIO, VCCPECL
-0.3
4.0
V
VCCA, VCCD
-0.3
3.0
V
Storage temperature
TST
-65
+150
C
Caution:
Exceeding these values may cause permanent damage. Functional operation
under these conditions is not implied. Exposure to maximum rating conditions
for extended periods may affect device reliability.
Table 52. Operating Conditions (Sheet 1 of 2)
Parameter
Sym
Min
Typ
1
(2.5 VCCIO)
Typ
1
(3.3 VCCIO)
Max
Units
Commercial
Operating
Temperature
Ambient
TOPA
0–
–
70
C
Case
TOPC
0–
–
108
C
Extended
Operating
Temperature
Ambient
TOPA
-40
85
C
Case
TOPC
-40
123
C
Supply voltage
2
Analog & Digital
Vcca, Vccd
2.38
2.5
2.63
V
I/O
Vccio
2.38
2.5
3.3
3.46
V
I/O (SD_2P5V = 0)
VCCPECL
3.14
N/A
3.3
3.46
V
I/O (SD_2P5V = 1)
2.38
2.5
N/A
2.63
V
Operating
Current - RMII3
100BASE-TX
ICC
–780
810
mA
ICCIO
–60
130
160
mA
100BASE-FX
ICC
–380
410
mA
ICCIO
–90
170
200
mA
10BASE-T
ICC
–710
765
mA
ICCIO
–30
70
90
mA
Power-Down
Mode
Hardware
ICC
–20
20
mA
ICCIO
–2
3
4
mA
Auto-Negotiation
ICC
–500
540
mA
ICCIO
–2
4
mA
1. Typical values are at 25 °C and are for design aid only; not guaranteed and not subject to production
testing.
2. Voltages with respect to ground unless otherwise specified.
3. Values are aggregated for all eight ports.