Integrated

Circuit

Systems, Inc.

General Description

Features

ICS9118-01

ICS9118-02

Frequency Generator for Digital Video Systems

9118-01 9118-02 RevB 7/27/99

Block Diagram

The ICS9118-01 and ICS9118-02 are low-cost, high-

perform-ance clock generators designed to support digital

video sys-tems. 27 MHz VIDEO, 1.8 MHz UART and

AUDIO clocks are generated from the recovered 27 MHz

signal. The on-chip crystal oscillator can be used in

conjunction with an exter-nal D/A conversation circuit to

provide ±130 ppm clock recovery using a standard 27

MHz crystal (contact ICS for application details).

The audio clock is synthesized from 27 MHz using a high

accuracy, low jitter PLL to meet the synchronization and

-96dB signal-to-noise ratios required by 16-bit DSP systems.

Fast output clock edge rates minimize board-induced jitter.

•

Generates 27 MHz VIDEO, 1.8 MHz UART and

synchronous AUDIO codec clocks

•

Selectable AUDIO clock supports 256x and 384x

over-sampling of 16.00, 22.05, 24.00, 32.00, 44.10

and 48.00 kHz

•

On-chip crystal oscillator enables 27 MHz

clock recovery

•

80ps one sigma jitter maintains 16-bit performance

•

3.0V - 5.5V supply range

•

14-pin, 150-mil SOIC package

Applications

•

Specifically designed to support the high

performance clocking requirements of digital video

set-top and multi-media systems

Pin Configuration

14-Pin SOIC

2

X

,

1

X

)

z

H

M

(

S

F

]

0

:

2

[

O

I

D

U

A

1

0

)

z

H

M

(

O

I

D

U

A

2

0

)

z

H

M

(

F

E

R

)

z

H

M

(

T

R

A

U

)

z

H

M

(

0

0

.

7

20

0

0e

t

a

t

s

i

r

Te

t

a

t

s

i

r

Te

t

a

t

s

i

r

Te

t

a

t

s

i

r

T

0

0

.

7

21

0

06

9

0

.

44

4

1

.

60

0

.

7

20

2

6

8

.

1

0

0

.

7

20

1

04

4

6

.

52

.

7

6

4

.

80

0

.

7

20

2

6

8

.

1

0

0

.

7

21

1

04

4

1

.

66

1

2

.

90

0

.

7

20

2

6

8

.

1

0

0

.

7

20

0

12

9

1

.

88

8

2

.

2

10

0

.

7

20

2

6

8

.

1

0

0

.

7

21

0

19

8

2

.

1

12

.

4

3

9

.

6

10

0

.

70

2

6

8

.

1

0

0

.

7

20

1

18

8

2

.

2

12

3

4

.

8

10

0

.

7

20

2

6

8

.

1

0

0

.

7

21

1

1w

o

Lw

o

Lw

o

Lw

o

L

Functionality

VDD=3.0-5.5V, TEMP=0-70°

PRODUCT PREVIEW documents contain information on products in the formative or

design phase development. Charactersitic data and other specifications are design

goals. ICS reserves the right to change or discontinue these procucts without notice.

Obsolete

ICS9118-02 Obsolete