ICS85354AK-01LF IDT, Integrated Device Technology Inc, ICS85354AK-01LF Datasheet - Page 15

• Manufacturer Part Number: ICS85354AK-01LF
• Description: IC MUX DUAL 2:1 1:2 16-VFQFPN
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Multiplexerr
• Series: HiPerClockS™r

Specifications of ICS85354AK-01LF

• Number Of Circuits: 2
• Ratio - Input:output: 2:1, 1:2
• Differential - Input:output: Yes/Yes
• Input: CML, LVDS, LVPECL
• Output: LVPECL
• Frequency - Max: 2.5GHz
• Voltage - Supply: 2.375 V ~ 3.465 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-VFQFN
• Frequency-max: 2.5GHz
• Number Of Clock Inputs: 3
• Output Frequency: 2500MHz
• Output Logic Level: ECL/LVPECL
• Operating Supply Voltage (min): -2.375/2.375V
• Operating Supply Voltage (typ): -2.5/-3.3/2.5/3.3V
• Operating Supply Voltage (max): -3.465/3.465V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Signal Type: CML/ECL/LVDS/LVPECL
• Mounting: Surface Mount
• Pin Count: 16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 85354AK-01LF

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 5.
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 = 11.02mW
Total Power Dissipation per output pair = Pd_H + Pd_L = 30.92mW
85354AK-01
o calculate worst case power dissipation into the load, use the following equations which assume a 50
•
•
For logic high, V
(V
For logic low, V
(V
OL_MAX
OH_MAX
CC_MAX
CC_MAX
– (V
– (V
- V
- V
OL_MAX
OH_MAX
CC_MAX
DD_MAX
CC
OUT
OUT
) = 1.67V
) = 0.935
- 2V.
- 2V))/R
- 2V))/R
= V
= V
OL_MAX
OH_MAX
L
L
] * (V
] * (V
= V
F
= V
IGURE
CC_MAX
CC_MAX
CC_MAX
CC_MAX
PRELIMINARY
5. LVPECL D
- V
– 1.67V
- V
– 0.935V
OL_MAX
OH_MAX
) = [(2V - (V
) = [(2V - (V
Q1
RIVER
VCC
D
15
IFFERENTIAL
CC_MAX
C
CC_MAX
IRCUIT AND
- V
- V
OL_MAX
OH_MAX
T
RL
50
ERMINATION
)) /R
)) /R
-
VCC - 2V
TO
L
] * (V
L
VOUT
] * (V
-LVPECL/ECL M
CC_MAX
CC_MAX
- V
- V
OL_MAX
OH_MAX
ICS85354-01
) =
) =
D
load, and a
REV. A JANUARY 16, 2008
UAL
ULTIPLEXER
2:1/1:2