adclk954 Analog Devices, Inc., adclk954 Datasheet - Page 5

• Manufacturer Part Number: adclk954
• Description: Two Selectable Inputs, 12 Lvpecl Outputs, Sige Clock Fanout Buffer
• Manufacturer: Analog Devices, Inc.

ABSOLUTE MAXIMUM RATINGS
Table 5.
Parameter
Supply Voltage
Input Voltage
Maximum Voltage on Output Pins
Maximum Output Current
Voltage Reference (V
Operating Temperature Range
Storage Temperature Range
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
THERMAL PERFORMANCE
Table 6.
Parameter
Junction-to-Ambient Thermal Resistance
Junction-to-Board Thermal Resistance
Junction-to-Case Thermal Resistance
Junction-to-Top-of-Package Characterization Parameter
1
Results are from simulations. The PCB is a JEDEC multilayer type. Thermal performance for actual applications requires careful inspection of the conditions in the
application to determine if they are similar to those assumed in these calculations.
V
CLK0, CLK1, CLK0, CLK1, IN_SEL
Input Termination, V
Ambient
Junction
Still Air
Moving Air
Moving Air
Moving Air
Still Air
CLK0, CLK1, CLK0, CLK1 to V
CLK0, CLK1 to CLK0, CLK1
CC
and CLK1
0.0 m/sec Air Flow
1.0 m/sec Air Flow
2.5 m/sec Air Flow
1.0 m/sec Air Flow
Die-to-Heatsink
0 m/sec Air Flow
LVPECL Termination)
− V
EE
REF
T
x to CLK0, CLK1, CLK0,
x)
T
x Pin (CML,
Rating
6.0 V
V
V
±40 mA
±1.8 V
±2 V
V
35 mA
V
−40°C to +85°C
150°C
−65°C to +150°C
EE
CC
CC
CC
− 0.5 V to
+ 0.5 V
+ 0.5 V
to V
EE
Rev. 0 | Page 5 of 12
Symbol
θ
θ
θ
θ
Ψ
JA
JMA
JB
JC
JT
DETERMINING JUNCTION TEMPERATURE
To determine the junction temperature on the application
printed circuit board (PCB), use the following equation:
where:
T
T
the top center of the package.
Ψ
P
Values of θ
design considerations. θ
mation of T
where T
Values of θ
and PCB design considerations.
ESD CAUTION
D
J
CASE
JT
is the junction temperature (°C).
is the power dissipation.
is from Table 6.
T
T
is the case temperature (°C) measured by the customer at
Description
Per JEDEC JESD51-2
Per JEDEC JESD51-6
Per JEDEC JESD51-8
Per MIL-STD 883, Method 1012.1
Per JEDEC JESD51-2
J
J
= T
= T
A
is the ambient temperature (°C).
CASE
JA
A
JB
J
+ (
by the equation
are provided for package comparison and PCB
are provided in Table 6 for package comparison
+ (Ψ
θ
JA
× P
JT
× P
D
)
JA
D
)
can be used for a first-order approxi-
Value
46.1
40.3
36.2
28.7
8.3
0.6
ADCLK954
1
Unit
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W