ICS853111BYLF IDT, Integrated Device Technology Inc, ICS853111BYLF Datasheet - Page 14

• Manufacturer Part Number: ICS853111BYLF
• Description: IC FANOUT BUFF LVPECL/ECL 32TQFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: HiPerClockS™r
• Type: Fanout Buffer (Distribution), Multiplexerr

Specifications of ICS853111BYLF

• Number Of Circuits: 1
• Ratio - Input:output: 2:10
• Differential - Input:output: Yes/Yes
• Input: CML, LVDS, LVPECL, SSTL
• Output: ECL, LVPECL
• Frequency - Max: 3GHz
• Voltage - Supply: 2.375 V ~ 3.8 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-TQFP, 32-VQFP
• Frequency-max: 3GHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 800-1165; 853111BYLF

3. Calculations and Equations.
The purpose of this section is to derive the power dissipated into the load.
LVPECL output driver circuit and termination are shown in Figure 7.
T
voltage of V
Pd_H = [(V
[(2V - 0.935V)/50Ω] * 0.935V = 19.92mW
Pd_L = [(V
[(2V - 1.67V)/50Ω] * 1.67V = 11.02mW
Total Power Dissipation per output pair = Pd_H + Pd_L = 30.94mW
IDT
o calculate worst case power dissipation into the load, use the following equations which assume a 50Ω load, and a termination
ICS853111B
LOW SKEW, 1-TO-10, DIFFERENTIAL-TO-2.5V, 3.3V LVPECL/ECL FANOUT BUFFER
™
•
•
/ ICS
For logic high, V
(V
For logic low, V
(V
™
OL_MAX
1-TO-10, LVPECL/ECL FANOUT BUFFER
CC_MAX
CCO_MAX
OH_MAX
CCO
- 2V.
– (V
– (V
- V
- V
OH_MAX
CCO_MAX
OL_MAX
CCO_MAX
) = 0.935V
) = 1.67V
OUT
- 2V))/R
OUT
- 2V))/R
= V
= V
OL_MAX
OH_MAX
L
L
] * (V
] * (V
= V
F
= V
IGURE
CCO_MAX
CCO_MAX
CCO_MAX
CCO_MAX
7. LVPECL D
- V
– 1.67V
- V
– 0.935V
OL_MAX
OH_MAX
) = [(2V - (V
) = [(2V - (V
RIVER
V
Q1
CCO
CCO _MAX
CCO _MAX
C
IRCUIT AND
14
- V
- V
OL_MAX
OH_MAX
)) /R
)) /R
T
R L
V
ERMINATION
50
L
CCO
] * (V
L
] * (V
V
- 2V
OUT
CCO_MAX
CCO _MAX
- V
- V
OL_MAX
OH_MAX
ICS853111BY REV. B SEPTEMBER 5, 2007
) =
) =