ICS853031AYLF IDT, Integrated Device Technology Inc, ICS853031AYLF Datasheet - Page 16

• Manufacturer Part Number: ICS853031AYLF
• Description: IC FANOUT BUFF LVPECL/ECL 32LQFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: HiPerClockS™r
• Type: Fanout Buffer (Distribution), Multiplexerr

Specifications of ICS853031AYLF

• Number Of Circuits: 1
• Ratio - Input:output: 2:9
• Differential - Input:output: Yes/Yes
• Input: CML, HCSL, LVDS, LVHSTL, LVPECL, SSTL
• Output: ECL, LVPECL
• Frequency - Max: 1.6GHz
• Voltage - Supply: 2.375 V ~ 3.465 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-LQFP
• Frequency-max: 1.6GHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 800-1162; 853031AYLF

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 8.
T
termination voltage of V
Pd_H is power dissipation when the output drives high.
Pd_L is the power dissipation when the output drives low.
Pd_H = [(V
[(2V – 0.935V)/50 ] * 0.935V = 19.92mW
Pd_L = [(V
[(2V – 1.67V)/50 ] * 1.67V = 11.2mW
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 50
ICS853031
LOW SKEW, 1-TO-9, DIFFERENTIAL-TO-2.5, 3.3V LVPECL/ECL FANOUT BUFFER
™
•
•
/ ICS
For logic high, V
(V
For logic low, V
(V
™
OL_MAX
1-TO-9, 2.5V, 3.3V LVPECL/ECL FANOUT BUFFER
CCO_MAX
CCO_MAX
OH_MAX
– (V
– (V
– V
– V
CCO_MAX
CCO_MAX
OH_MAX
OL_MAX
CCO
OUT
) = 1.67V
) = 0.935V
OUT
– 2V))/R
– 2V))/R
= V
– 2V.
= V
OL_MAX
OH_MAX
L
L
] * (V
= V
] * (V
= V
CCO_MAX
CCO_MAX
CCO_MAX
CCO_MAX
F
IGURE
– 1.67V
– V
– 0.935V
– V
8. LVPECL D
OL_MAX
OH_MAX
) = [(2V – (V
) = [(2V – (V
Q1
VCCO
RIVER
CCO_MAX
CCO_MAX
16
C
– V
– V
IRCUIT AND
OL_MAX
OH_MAX
)) /R
)) /R
RL
50
L
T
VCCO - 2V
L
] * (V
] * (V
ERMINATION
VOUT
CCO_MAX
CCO_MAX
– V
– V
OL_MAX
OH_MAX
ICS853031AY REV. C AUGUST 12, 2008
) =
) =
load, and a