ICS8536CGI-33T IDT, Integrated Device Technology Inc, ICS8536CGI-33T Datasheet - Page 13

• Manufacturer Part Number: ICS8536CGI-33T
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Clock Driverr

Specifications of ICS8536CGI-33T

• Number Of Clock Inputs: 2
• Mode Of Operation: Single-Ended
• Output Frequency: 266MHz
• Operating Supply Voltage (min): 2.375V
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (max): 3.465V
• Package Type: TSSOP
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 20
• Lead Free Status / RoHS Status: Not Compliant

This section provides information on power dissipation and junction temperature for the ICS8536I-33.
Equations and example calculations are also provided.
1. Power Dissipation.
The total power dissipation for the ICS8536I-33 is the sum of the core power plus the power dissipated in the load(s).
The following is the power dissipation for V
NOTE: Please refer to Section 3 for details on calculating power dissipated in the load.
Core and LVPECL Output Power Dissipation
LVCMOS Output Power Dissipation
Total Power Dissipation
IDT
ICS8536I-33
LOW SKEW, 1-TO-6, CRYSTAL OSCILLATOR/LVCMOS-TO-3.3V, 2.5V LVPECL/LVCMOS FANOUT BUFFER
™
/ ICS
Power (core)
Power (outputs)
If all outputs are loaded, the total power is 3 * 30mW = 90mW
Output Impedance R
Output Current I
Power Dissipation on the R
Power (R
Total Power Dissipation on the R
Total Power
= Power (LVPECL) + Total Power (R
= 277.2mW + 90mW + 32.1mW
= 399.3mW
™
3.3V, 2.5V LVPECL/ LVCMOS FANOUT BUFFER
Total Power (R
OUT
) = R
MAX
= V
MAX
OUT
OUT
= 30mW/Loaded Output pair
CC_MAX
= V
* (I
OUT
OUT
CCO_MAX
OUT
Power Dissipation due to Loading 50
* I
) = 10.7mW * 3 = 32.1mW
EE_MAX
)
2
OUT
= 15
/ [2 * (50
per LVCMOS output
= 3.465V * 80mA = 277.2mW
OUT
CC
= 3.3V + 5% = 3.465V, which gives worst case results.
OUT
* (26.7mA)
P
)
OWER
+ R
OUT
2
)] = 3.465V / [2 * (50
= 10.7mW per output
C
ONSIDERATIONS
13
to V
CCO_LVCMOS
+ 15 ] = 26.7mA
/2
ICS8536CGI-33 REV. B OCTOBER 27, 2008