ICS91730 View Datasheet(PDF) - Integrated Circuit Systems

Part Name

Description

MFG CO.

ICS91730

Low EMI, Spread Modulating, Clock Generator

Integrated Circuit Systems 

1 2 3 4 5 6 7 8 9 10

ICS91730

Byte

0

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Pin #

-

-

Bit 0

Byte

1

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Pin #

-

Byte

2

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Pin #

x

x

x

x

x

x

x

x

Affected Pin

Name

Control Function

FS0

Spread/FS0

FS1

Spread/FS1

FS2

Spread/FS2

FS3

Spread/FS3

FS4

FS4

PD# Tri_Sate

PD# Tri_Sate

Spread Enable

Spread Enable

Spread Spectrum Control

FS 3:4 Hard/Software

HW/SW Control

Select

Type

RW

RW

RW

RW

RW

RW

RW

RW

Bit Control

0

1

Srpead Pecentage

See Table1

These are I2C bits

only

Hi-Z

OFF

LOW

ON

HW

SW

PWD

1

0

0

0

0

1

1

0

Affected Pin

Name

Control Function

REF_OUT

REF_OUT_Enable

REF_OUT

Slew Rate REF-OUT

FS-IN_1

FS-IN_1 Readback

(Reserved)

(Reserved)

CLK_OUT

Slew Rate CLK-OUT

CLK_OUT

CLK_OUT_Enable

(Reserved)

(Reserved)

(Reserved)

(Reserved)

Type

RW

RW

R

R

RW

RW

R

R

Bit Control

0

1

Disable Enable

Nominal Fast

-

-

-

-

Nominal Fast

Disable Enable

-

-

-

-

PWD

1

1

X

0

1

1

1

1

Affected Pin

Name

Control Function

-

(Reserved)

(Reserved)

(Reserved)

(Reserved)

(Reserved)

(Reserved)

(Reserved)

(Reserved)

(Reserved)

(Reserved)

(Reserved)

(Reserved)

(Reserved)

(Reserved)

(Reserved)

Type

-

RW

RW

RW

RW

RW

RW

RW

Bit Control

0

1

-

-

Disable Enable

Disable Enable

Disable Enable

Disable Enable

Disable Enable

Disable Enable

Disable Enable

PWD

1

1

1

1

1

1

1

1

0794D—05/23/05

5

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