ICS873990 Datasheet, PDF (13/16 Pages) Integrated Circuit Systems – LOW VOLTAGE, LVCMOS/ CRYSTAL-TO-LVPECL/ECL CLOCK GENERATOR

Integrated
Circuit
Systems, Inc.
ICS873990
LOW VOLTAGE, LVCMOS/
CRYSTAL-TO-LVPECL/ECL CLOCK GENERATOR
RELIABILITY INFORMATION
TABLE 9. θ_JAVS. AIR FLOW TABLE FOR 52 LEAD LQFP
θ_JA by Velocity (Linear Feet per Minute)
Single-Layer PCB, JEDEC Standard Test Boards
Multi-Layer PCB, JEDEC Standard Test Boards
0
58.0°C/W
42.3°C/W
200
47.1°C/W
36.4°C/W
500
42.0°C/W
34.0°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 ICS873990 is: 5788
Pin compatible with the MPC990
873990AY
www.icst.com/products/hiperclocks.html
13
REV. B JUNE 13, 2005