ICS85211BMI-03LN IDT, Integrated Device Technology Inc, ICS85211BMI-03LN Datasheet - Page 11

• Manufacturer Part Number: ICS85211BMI-03LN
• Description: IC CLK FANOUT BUFFER 1:2 8SOIC
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: HiPerClockS™r
• Type: Fanout Buffer (Distribution)r

Specifications of ICS85211BMI-03LN

• Number Of Circuits: 1
• Ratio - Input:output: 1:2
• Differential - Input:output: Yes/Yes
• Input: HCSL, LVDS, LVHSTL, LVPECL, SSTL
• Output: LVHSTL
• Frequency - Max: 700MHz
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC
• Frequency-max: 700MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 800-1959-5; 85211BMI-03LN; ICS85211BMI-03LN

ICS85211BI-03 Data Sheet
3. Calculations and Equations.
The purpose of this section is to calculate the power dissipation for the LVHSTL output pairs.
LVHSTL output driver circuit and termination are shown in Figure 4.
Figure 4. LVHSTL Driver Circuit and Termination
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 = (1.15V/50
Pd_L = (0.4V/50
Total Power Dissipation per output pair = Pd_H + Pd_L = 77.76mW
ICS85211BMI-03 REVISION C MARCH 12, 2010
o calculate worst case power dissipation into the load, use the following equations which assume a 50Ω load.
OL_MAX
OH_MAX
Ω
/ R
Ω
/ R
) * (3.465V – 0.4V) = 24.52mW
) * (3.465V – 1.15V) = 53.24mW
L
L
) * (V
) * (V
DD_MAX
DD_MAX
V
Q1
DD
– (V
– (V
OL_MAX
OH_MAX
)
)
RL
50Ω
V
OUT
11
LOW SKEW, 1-TO-2, DIFFERENTIAL-TO-LVHSTL FANOUT BUFFER
©2010 Integrated Device Technology, Inc.