ICS889834AKLF IDT, Integrated Device Technology Inc, ICS889834AKLF Datasheet - Page 10

• Manufacturer Part Number: ICS889834AKLF
• Description: IC CLOCK MULT HS 2-4 16-VFQFPN
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: HiPerClockS™r
• Type: Fanout Buffer (Distribution), Multiplexerr

Specifications of ICS889834AKLF

• Number Of Circuits: 1
• Ratio - Input:output: 2:4
• Differential - Input:output: No/Yes
• Input: LVCMOS, LVTTL
• Output: ECL, LVPECL
• Frequency - Max: 1GHz
• Voltage - Supply: 2.375 V ~ 3.63 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-VFQFN
• Frequency-max: 1GHz
• Number Of Clock Inputs: 2
• Mode Of Operation: Single-Ended
• Output Frequency: >1000MHz
• Output Logic Level: ECL/LVPECL
• Operating Supply Voltage (min): -2.375/2.375V
• Operating Supply Voltage (typ): -2.5/-3.3/3.3V
• Operating Supply Voltage (max): -3.63/3.63V
• Package Type: VFQFN
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Signal Type: LVCMOS/LVTTL
• Mounting: Surface Mount
• Pin Count: 16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 889834AKLF

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 4.
T
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 - 1.005V)/50Ω] * 1.005V = 20mW
Pd_L = [(V
[(2V - 1.78V)/50Ω] * 1.78V = 7.83mW
Total Power Dissipation per output pair = Pd_H + Pd_L = 27.83mW
889834AK
o calculate worst case power dissipation into the load, use the following equations which assume a 50Ω load, and a termination
•
•
For logic high, V
(V
For logic low, V
(V
OL_MAX
OH_MAX
CC_MAX
CC_MAX
CC
- 2V.
Integrated
Circuit
Systems, Inc.
– (V
– (V
- V
- V
OH_MAX
OL_MAX
CC_MAX
CC_MAX
OUT
OUT
) = 1.78V
) = 1.005
- 2V))/R
- 2V))/R
= V
= V
OL_MAX
OH_MAX
L
L
] * (V
] * (V
F
= V
IGURE
= V
CC_MAX
CC_MAX
CC_MAX
CC_MAX
www.icst.com/products/hiperclocks.html
LVCMOS/LVTTL-
4. LVPECL D
PRELIMINARY
– 1.78V
- V
- V
– 1.005V
OL_MAX
OH_MAX
) = [(2V - (V
) = [(2V - (V
Q1
VCC
RIVER
10
CC_MAX
CC_MAX
C
IRCUIT AND
TO
- V
- V
OL_MAX
-LVPECL/ECL C
OH_MAX
RL
50
T
)) /R
)) /R
VCC - 2V
ERMINATION
L
] * (V
L
] * (V
VOUT
CC_MAX
CC_MAX
- V
- V
OL_MAX
OH_MAX
L
LOCK
OW
) =
ICS889834
) =
S
M
KEW
REV. A MARCH 20, 2006
ULTIPLEXER
, 2-
TO
-4