ICS83905AM datasheet(11/14 Pages) ICST

11 / 14 page

83905AM

http://www.icst.com/products/hiperclocks.html

REV. A JANUARY 20, 2005

Integrated

Circuit

Systems, Inc.

ICS83905

LOW SKEW, 1:6 CRYSTAL INTERFACE-TO-

LVCMOS / LVTTL FANOUT BUFFER

PRELIMINARY

RELIABILITY INFORMATION

TRANSISTOR COUNT

The transistor count for ICS83905 is: 339

TABLE 6B.

. AIR FLOW TABLE FOR 16 LEAD TSSOP

θθθθθ

JA by Velocity (Linear Feet per Minute)

200

500

Single-Layer PCB, JEDEC Standard Test Boards

137.1°C/W

118.2°C/W

106.8°C/W

Multi-Layer PCB, JEDEC Standard Test Boards

89.0°C/W

81.8°C/W

78.1°C/W

NOTE: Most modern PCB designs use multi-layered boards. The data in the second row pertains to most designs.

TABLE 6A.

. AIR FLOW TABLE FOR 16 LEAD SOIC

θθθθθ

JA by Velocity (Meters per Second)

Multi-Layer PCB, JEDEC Standard Test Boards

78.8°C/W

71.1°C/W

66.2°C/W

TABLE 6C.

. AIR FLOW TABLE FOR 20 LEAD VFQFN

θθθθθ

JA by Velocity (Meters per Second)

2.5

Single-Layer PCB, JEDEC Standard Test Boards

141.7°C/W

126°C/W

116.9°C/W

Multi-Layer PCB, JEDEC Standard Test Boards

38.5°C/W

35°C/W

33.4°C/W

NOTE: Most modern PCB designs use multi-layered boards. The data in the second row pertains to most designs.

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