Datasheet
63 www.national.com
Absolute Maximum Ratings
Supply Voltage (V
CC
) -0.5 V to 7.0 V
Input Voltage (DC
IN
) -0.5 V to V
CC
+ 0.5 V
Output Voltage (DC
OUT
) -0.5 V to V
CC
+ 0.5 V
Storage Temperature
-65
o
C to 150
o
C
ECL Signal Output Current -50mA
ESD Protection 2000 V
Recommended Operating Conditions
Min Typ Max Units
Supply voltage (V
DD
) 4.75 5.0 5.25 V
Ambient Temperature (T
A
)0 70
o
C
X1 Input Frequency Stability
(over temperature)
-50 +50 PPM
X1 Input Duty Cycle 35 65 %
Center Frequency (X
FC
) 25 MHz
9.0 Electrical Specifications
All preliminary electrical specifications are based on IEEE 802.3u requirements and internal design considerations.
These specifications will not become final until complete verification of the DP83843.
Thermal Characteristics*
*Valid for Phyters with data code 9812 or later, for earlier data codes please contact your National Sales Representative for data.
Max Units
Maximum Case Temperature 96
o
C
Maximum Die Temperature 104.7
o
C
Theta Junction to Case (T
jc
) 1.1
o
C / W
Theta Junction to Ambient (T
ja
) degrees Celsius/Watt - No Airflow @ 1.0W 42.7
o
C / W
Theta Junction to Ambient (T
ja
) degrees Celsius/Watt - 225 LFPM Airflow @ 1.0W 35.3
o
C / W
Theta Junction to Ambient (T
ja
) degrees Celsius/Watt - 500 LFPM Airflow @ 1.0W 30.4
o
C / W
Theta Junction to Ambient (T
ja
) degrees Celsius/Watt - 900 LFPM Airflow @ 1.0W 26.9
o
C / W