Triple PLL Field Programmable VCXO Clock Synthesizer

MDS 271 A

7

Revision 040705

Integrated Circuit Systems, Inc.

ICS271

PRELIMINARY INFORMATION

Thermal Characteristics

Marking Diagrams

Marking Diagrams (Pb free)

Notes:

1. ###### is the lot number.

2. YYWW is the last two digits of the year and week that the part was assembled.

3. “I” denotes industrial temperature range (if applicable).

4. “L” denotes Pb (lead) free package.

5. Bottom marking: country of origin.

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Units

Thermal Resistance Junction to

Ambient

θ

JA

Still air

93

°C/W

θ

JA

1 m/s air flow

78

°C/W

θ

JA

3 m/s air flow

65

°C/W

Thermal Resistance Junction to Case

θ

JC

20

°C/W

1

10

11

20

271PG

######

YYWW

1

10

11

20

271PGI

######

YYWW

1

10

11

20

271PGL

######

YYWW

1

10

11

20

271PGIL

######

YYWW