85211AMI-01 IDT, Integrated Device Technology Inc, 85211AMI-01 Datasheet - Page 9

• Manufacturer Part Number: 85211AMI-01
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 85211AMI-01

• 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: 52%
• Operating Temperature Classification: Industrial
• Lead Free Status / Rohs Status: Not Compliant

3. Calculations and Equations.
The purpose of this section is to derive the power dissipated into the load.
HSTL output driver circuit and termination are shown in Figure 4.
T
Pd_H is power dissipation when the output drives high.
Pd_L is the power dissipation when the output drives low.
Pd_H = (V
Pd_L = (V
Pd_H = (1.4V/50 ) * (3.465V - 1.4V) = 57.82mW
Pd_L = (0.4V/50 ) * (3.465V - 0.4V) = 24.52mW
Total Power Dissipation per output pair = Pd_H + Pd_L = 82.34mW
85211AMI-01
o calculate worst case power dissipation into the load, use the following equations which assume a 50 load.
OL_MAX
OH_MAX
/R
/R
L
L
) * (V
) * (V
DD_MAX
DD_MAX
- V
- V
OL_MAX
OH_MAX
F
IGURE
)
)
4. HSTL D
RIVER
www.idt.com
V
Q1
DD
C
9
IRCUIT AND
D
IFFERENTIAL
T
ERMINATION
RL
50
V
OUT
-
TO
-HSTL F
ICS85211I-01
L
OW
ANOUT
S
KEW
REV. B AUGUST 4, 2010
, 1-
B
UFFER
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