ICS843204I Datasheet, PDF (10/12 Pages) Integrated Circuit Systems – FEMTOCLOCKS™ CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER

Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS843204I
FEMTOCLOCKS™ CRYSTAL-TO-
3.3V LVPECL FREQUENCY SYNTHESIZER
RELIABILITY INFORMATION
TABLE 8. θ_JAVS. AIR FLOW TABLE FOR 48 LEAD TSSOP
θ_JA by Velocity (Linear Feet per Minute)
Single-Layer PCB, JEDEC Standard Test Boards
Multi-Layer PCB, JEDEC Standard Test Boards
0
82.6°C/W
58.3°C/W
200
70.3°C/W
52.3°C/W
500
63.7°C/W
49.9°C/W
NOTE: Most modern PCB designs use multi-layered boards. The data in the second row pertains to most designs.
TRANSISTOR COUNT
The transistor count for ICS843204I is: 4090
843204AGI
www.icst.com/products/hiperclocks.html
10
REV. A JANUARY 6, 2006