ICS8534BMI-13LFT IDT, Integrated Device Technology Inc, ICS8534BMI-13LFT Datasheet - Page 12

• Manufacturer Part Number: ICS8534BMI-13LFT
• Description: IC FANOUT BUFFER 1-4 16-SOIC
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: HiPerClockS™r
• Type: Fanout Buffer (Distribution), Multiplexerr

Specifications of ICS8534BMI-13LFT

• Number Of Circuits: 1
• Ratio - Input:output: 2:4
• Differential - Input:output: No/Yes
• Input: LVCMOS, LVTTL, Crystal
• Output: LVCMOS, LVPECL
• Frequency - Max: 266MHz
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC
• Frequency-max: 266MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 8534BMI-13LFT

This section provides information on power dissipation and junction temperature for the ICS8534I-13.
Equations and example calculations are also provided.
1. Power Dissipation.
The total power dissipation for the ICS8534I-13 is the sum of the core power plus the power dissipated in the load(s).
The following is the power dissipation for V
Core and LVPECL Output Power Dissipation
LVCMOS Output Power Dissipation
Total Power Dissipation
IDT
ICS8534I-13
1-TO-4, CRYSTAL OSCILLATOR/LVCMOS-TO-3.3V LVPECL/LVCMOS FANOUT BUFFER
™
/ ICS
Power (core)
Power (outputs)
Output Impedance R
Output Current I
Power Dissipation on the R
Power (R
Total Power Dissipation on the R
Dynamic Power Dissipation at 25MHz
Power (25MHz) = C
Total Power
= Power (LVPECL) + Total Power (R
= 207.9mW + 30mW + 18.4mW + 7.75mW
= 264mW
™
3.3V LVPECL/LVCMOS FANOUT BUFFER
Total Power (R
Total Power (25MHz) = 2.58mW * 3 = 7.75mW
OUT
) = R
MAX
= V
MAX
OUT
OUT
= 30mW/Loaded Output pair
CC_MAX
= V
PD
* (I
OUT
OUT
* frequency * (V
CCO_MAX
OUT
Power Dissipation due to Loading 50
* I
) = 6.12mW * 3 = 18.4mW
EE_MAX
)
2
OUT
= 15
/ [2 * (50
per LVCMOS output
= 3.465V * 60mA = 207.9mW
OUT
CC
= 3.3V + 5% = 3.465V, which gives worst case results.
* (20.2mA)
OUT
P
DDO
) + Total Power (25MHz)
OWER
+ R
)
2
= 15pF * 25MHz * (2.625V)
OUT
2
)] = 2.625V / [2 * (50
= 6.12mW per output
C
ONSIDERATIONS
12
to V
CCO_LVCMOS
+ 15 ] = 20.2mA
2
/2
= 2.58mW per output
ICS8534BMI-13 REV. B MAY 16, 2008
PRELIMINARY