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

• 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

2. Junction Temperature.
Junction temperature, Tj, is the temperature at the junction of the bond wire and bond pad and directly affects the reliability of the
device. The maximum recommended junction temperature for HiPerClockS
In order to calculate junction temperature, the appropriate junction-to-ambient thermal resistance
flow and a multi-layer board, the appropriate value is 90°C/W per Table 7 below.
Therefore, Tj for an ambient temperature of 85°C with all outputs switching is:
This calculation is only an example. Tj will obviously vary depending on the number of loaded outputs, supply voltage, air flow,
and the type of board (single layer or multi-layer).
T
IDT
ABLE
ICS8534I-13
1-TO-4, CRYSTAL OSCILLATOR/LVCMOS-TO-3.3V LVPECL/LVCMOS FANOUT BUFFER
™
/ ICS
7. T
Multi-Layer PCB, JEDEC Standard Test Boards
The equation for Tj is as follows: Tj =
Tj = Junction Temperature
Pd_total = Total Device Power Dissipation (example calculation is in section 1 above)
T
85°C + 0.264W * 90°C/W = 108.8°C. This is well below the limit of 125°C.
™
JA
A
3.3V LVPECL/LVCMOS FANOUT BUFFER
= Ambient Temperature
HERMAL
= Junction-to-Ambient Thermal Resistance
R
ESISTANCE
JA
FOR
16-
JA
PIN
by Velocity (Linear Feet per Minute)
SOIC, F
JA
* Pd_total + T
ORCED
C
A
ONVECTION
13
90°C/W
0
TM
devices is 125°C.
82°C/W
200
ICS8534BMI-13 REV. B MAY 16, 2008
JA
must be used. Assuming no air
78°C/W
500
PRELIMINARY