ICS85211AMI-03T IDT, Integrated Device Technology Inc, ICS85211AMI-03T Datasheet - Page 9

• Manufacturer Part Number: ICS85211AMI-03T
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of ICS85211AMI-03T

• Number Of Outputs: 4
• Operating Supply Voltage (max): 3.465V
• Operating Temp Range: -40C to 85C
• Propagation Delay Time: 1ns
• Operating Supply Voltage (min): 3.135V
• Mounting: Surface Mount
• Pin Count: 8
• Operating Supply Voltage (typ): 3.3V
• Package Type: SOIC N
• Duty Cycle: 53%
• Operating Temperature Classification: Industrial
• Lead Free Status / Rohs Status: Not Compliant

ICS85211I-03
L
S
, 1-
-2
OW
KEW
TO
D
-
-LVHSTL F
B
IFFERENTIAL
TO
ANOUT
UFFER
3. Calculations and Equations.
The purpose of this section is to derive the power dissipated into the load.
LVHSTL output driver circuit and termination are shown in Figure 7.
V
DD
Q1
V
OUT
RL
50
F
7. LVHSTL D
C
T
IGURE
RIVER
IRCUIT AND
ERMINATION
T
o calculate worst case power dissipation into the load, use the following equations which assume a 50 load.
Pd_H is power dissipation when the output drives high.
Pd_L is the power dissipation when the output drives low.
Pd_H = (V
/R
) * (V
- V
)
OH_MAX
L
DD_MAX
OH_MAX
Pd_L = (V
/R
) * (V
- V
)
OL_MAX
DD_MAX
OL_MAX
L
Pd_H = (1.0V/50 ) * (3.465V - 1.0V) = 49.3mW
Pd_L = (0.4V (50 ) * (3.465V - 0.4V) = 24.52mW
Total Power Dissipation per output pair = Pd_H + Pd_L = 73.82mW
9
85211AMI-03
REV. B NOVEMBER 14, 2007