PRELIMINARY
C9851
Clock Generator for Pentium III Server and Workstation Applications
Power Management Functions
Host Swing Select Functions
MultSel0 MultSel1
Board Target
Trace/TermZ
Reference Rr, Iref =
Vdd/(3*Rr) Note2
Output Current
Ioh = 5*Iref
Ioh = 5*Iref
Ioh = 6*Iref
Ioh = 6*Iref
Ioh = 4*Iref
Ioh = 4*Iref
Ioh = 7*Iref
Ioh = 7*Iref
Voh @Z, Iref =
2.32mA
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
60 Ohms
Rf = 475 1%,
Iref = 2.32mA
Rr = 475 1%,
Iref = 2.32mA
Rr = 475 1%,
Iref = 2.32mA
Rr = 475 1%,
Iref = 2.32mA
0.7V @ 60
0.59V @ 50
0.85V @ 60
0.71V @ 50
0.56V @ 60
0.47V @ 50
0.99V @ 60
0.82V @ 50
50 Ohms
60 Ohms
50 Ohms
60 Ohms
50 Ohms
60 Ohms
50 Ohms
Rr = 475 1%,
Iref = 2.32mA
Rr = 475 1%,
Iref = 2.32mA
Rr = 475 1%,
Iref = 2.32mA
Rr = 475 1%,
Iref = 2.32mA
Note1: The entries in boldface are the primary system configurations of interest. The outputs should be optimized for
these configurations.
Note2: Rr refers to the resistance placed in series with the Iref input and Vss.
Table 4
Cypress Semiconductor Corporation
525 Los Coches St.
Document#: 38-07068 Rev. **
05/04/2001
Milpitas, CA 95035. Tel: 408-263-6300, Fax: 408-263-6571
http://www.cypress.com
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