85304-01PG8 IDT, Integrated Device Technology Inc, 85304-01PG8 Datasheet - Page 10
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85304-01PG8
Manufacturer Part Number
85304-01PG8
Description
Manufacturer
IDT, Integrated Device Technology Inc
Type
Clock Driverr
Datasheet
1.85304-01PG8.pdf
(11 pages)
Specifications of 85304-01PG8
Number Of Clock Inputs
2
Mode Of Operation
Differential
Output Frequency
650MHz
Output Logic Level
LVPECL
Operating Supply Voltage (min)
3.135V
Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (max)
3.465V
Package Type
TSSOP
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
20
Lead Free Status / RoHS Status
Not Compliant
CALCULATIONS AND EQUATIONS
To calculate worst case power dissipation into the load, use the following equations, which assume a 50Ω load and a termination voltage of V
For Logic HIGH: V
(V
For Logic LOW: V
(V
Pd_H is power dissipation when the output drives HIGH.
Pd_L is power dissipation when the output drives LOW.
Pd_H = {[ V
1V = 20mW.
Pd_L = {[ V
1.7V = 10.2mW.
Total Power Dissipation per output pair = Pd_H + Pd_L = 30.2mW
IDT85304-01
LOW SKEW, 1-TO-5 DIFFERENTIAL-TO-3.3V LVPECL
DD
DD
_
_
MAX
MAX
– V
– V
OL
OH
OH
OL
_
_
MAX
_
MAX
_
MAX
MAX
OUT
OUT
– (V
– (V
) = 1.7V
) = 1V
= V
= V
DD
DD
OL
_
OH
_
MAX
_
MAX
_
MAX
MAX
– 2V)] / R
– 2V)] / R
= V
= V
DD
DD
_
_
MAX
L
MAX
L
} * (V
} * (V
– 1.7V.
– 1V.
DD
DD
_
_
LVPECL Output Driver Circuit and Termination
MAX
MAX
– V
– V
OL
OH
_
_
MAX
MAX
Q1
) = {[ 2V – (V
) = {[ 2V – (V
V
DD
10
DD
DD
_
_
MAX
MAX
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
– V
– V
OL
OH
_
_
MAX
MAX
RL
50
V
)] / R
)] / R
V
DD
OUT
L
} * (V
- 2V
L
} * (V
DD
DD
_
_
MAX
MAX
– V
– V
OL
OH
_
MAX
_
MAX
) = [( 2V – 1.7V) / 50Ω] *
) = [( 2V – 1V) / 50Ω] *
DD
– 2V.