2

ICS951703

The ICS9250-31 is a single chip clock solution for mobile applications, providing all necessary clock signals for

such a system.

Spread spectrum may be enabled through I

2C programming. Spread spectrum typically reduces EMI by 8dB to 10 dB. This

simplifies EMI qualification without resorting to board design iterations or costly shielding. The ICS9250-31 employs a

proprietary closed loop design, which tightly controls the percentage of spreading over process and temperature variations.

General Description

Pin Configuration

R

E

B

M

U

N

N

I

PE

M

A

N

N

I

PE

P

Y

TN

O

I

T

P

I

R

C

S

E

D

1F

E

RT

U

O.

t

u

p

t

u

o

k

c

o

l

c

e

c

n

e

r

e

f

e

r

z

H

M

8

1

3

.

4

1

,

V

3

.

3

31

XN

I.

t

u

p

n

i

l

a

t

s

y

r

C

42

XT

U

O.

t

u

p

t

u

o

l

a

t

s

y

r

C

,

3

2

,

1

2

,

4

1

,

6

,

5

6

5

,

8

4

,

7

4

,

1

4

,

4

2

D

N

GR

W

Pd

n

u

o

r

G

7

,

8

,

9)

0

:

2

(

6

6

V

3T

U

OB

U

H

r

o

f

s

t

u

p

t

u

o

k

c

o

l

c

z

H

M

6

6

d

e

x

i

F

V

3

.

3

,

2

2

,

7

1

,

0

1

,

2

4

4

,

7

3

,

5

3

,

7

2

D

D

VR

W

Py

l

p

p

u

s

r

e

w

o

p

V

3

.

3

1

1#

P

O

T

S

_

I

C

PN

I

,

l

e

v

e

l

0

c

i

g

o

l

t

a

s

k

c

o

l

c

F

_

K

L

C

I

C

P

e

h

t

s

e

d

i

s

e

b

s

K

L

C

I

C

P

l

l

a

s

p

o

t

S

w

o

l

t

u

p

n

i

n

e

h

w

2

1F

_

K

L

C

I

C

PT

U

O#

P

O

T

S

_

I

C

P

y

b

d

e

t

c

e

f

f

a

t

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n

t

u

p

t

u

o

k

c

o

l

c

I

C

P

V

3

.

3

g

n

i

n

n

u

r

e

e

r

F

,

6

1

,

8

1

,

9

1

,

0

2

3

1

,

5

1

)

1

:

6

(

K

L

C

I

C

PT

U

Os

t

u

p

t

u

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k

c

o

l

c

I

C

P

V

3

.

3

5

21

_

z

H

M

8

4T

U

OB

S

U

r

o

f

s

t

u

p

t

u

o

k

c

o

l

c

z

H

M

8

4

d

e

x

i

F

V

3

.

3

6

22

_

z

H

M

8

4T

U

O

o

e

d

i

v

/

s

c

i

h

p

a

r

g

r

o

f

t

u

p

t

u

o

r

e

g

n

o

r

t

S

.

t

u

p

t

u

o

k

c

o

l

c

z

H

M

8

4

d

e

x

i

f

V

3

.

3

)

e

t

a

r

e

g

d

e

s

n

/

V

1

m

u

m

i

n

i

m

(

)

T

O

D

(

e

c

a

f

r

e

t

n

i

8

2

,

9

2

,

3

3)

0

:

2

(

S

FN

I

.

y

t

i

l

a

n

o

i

t

c

n

u

f

t

u

p

t

u

o

l

l

a

,

y

c

n

e

u

q

e

r

f

U

P

C

s

e

n

i

m

r

e

t

e

D

.

s

n

i

p

t

c

e

l

e

S

n

o

i

t

c

n

u

F

.

3

e

g

a

p

n

o

e

l

b

a

t

y

t

i

l

a

n

o

i

t

c

n

u

F

o

t

r

e

f

e

r

e

s

a

e

l

P

0

3A

T

A

D

SO

/

II

r

o

f

n

i

p

a

t

a

D

2

t

n

a

r

e

l

o

t

V

5

y

r

t

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u

c

r

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c

C

1

3K

L

C

SN

II

f

o

n

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k

c

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l

C

2

t

n

a

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t

V

5

y

r

t

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c

r

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c

C

2

3#

D

PN

I

o

t

n

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v

e

d

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t

n

w

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d

r

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u

n

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p

n

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w

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n

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r

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c

n

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s

A

d

n

a

O

C

V

e

h

t

d

n

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d

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b

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s

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d

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k

c

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l

c

l

a

n

r

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n

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T

.

e

t

a

t

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r

e

w

o

p

w

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b

t

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n

l

l

i

w

n

w

o

d

r

e

w

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p

e

h

t

f

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c

n

e

t

a

l

e

h

T

.

d

e

p

p

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t

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r

a

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t

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r

c

e

h

t

.

s

m

3

n

a

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t

r

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t

a

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r

g

4

3#

P

O

T

S

_

U

P

CN

I

e

r

a

)

1

:

2

(

K

L

C

U

P

C

.

w

o

l

t

u

p

n

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n

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h

w

,

l

e

v

e

l

0

c

i

g

o

l

t

a

]

0

[

K

L

C

U

P

C

s

p

o

t

S

.

d

e

t

c

e

f

f

a

t

o

n

6

3K

L

C

_

H

C

VT

U

O.

t

u

p

t

u

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k

c

o

l

c

C

S

S

z

H

M

7

6

.

6

6

r

o

C

S

S

-

n

o

n

z

H

M

8

4

e

l

b

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V

3

.

3

,

3

4

,

2

4

,

0

4

,

9

3

6

4

,

5

4

)

0

:

5

(

M

A

R

D

ST

U

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l

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z

H

M

0

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V

3

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3

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t

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2C

8

3F

_

M

A

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U

O

,

M

A

R

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z

H

M

0

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1

g

n

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r

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r

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3

.

3

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h

g

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r

h

t

f

f

o

d

e

n

r

u

t

e

b

t

o

n

n

a

c

2C

2

5

,

0

5

,

9

4)

0

:

2

(

K

L

C

U

P

CT

U

O.

s

n

i

p

)

0

:

2

(

S

F

n

o

g

n

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d

n

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p

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H

M

0

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1

t

u

p

t

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k

c

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l

c

s

u

b

t

s

o

H

V

5

.

2

3

5

,

1

5L

D

D

VR

W

PC

I

P

A

O

I

&

U

P

C

r

o

f

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l

p

p

u

s

r

e

w

o

p

V

5

.

2

5

5

,

4

5)

0

:

1

(

C

I

P

A

O

IT

U

O.

z

H

M

3

.

3

3

t

a

g

n

i

n

n

u

r

s

t

u

p

t

u

o

k

c

o

l

c

V

5

.

2