®

Low Power Mobile VGA EMI Reduction IC

2 of 8

March 2003

P1818/19/20/21/22

Notice: The information in this document is subject to change without notice.

Pin Diagrams

Block Diagram

P 1 8 1 8 A / B /C /D

P 1 8 1 9 A / B /C /D

P 1 8 2 0 A / B /C /D

1

8

6

4

3

2

7

5

XI N

VS S

SR S

M odO ut

XO U T

VD D

PD #

RE F

P 1 8 2 1 A /B /C /D

1

8

6

4

3

2

7

5

XI N

VS S

SR S

Mo d O u t

XO U T

VD D

FR S

RE F

1

8

6

4

3

2

7

5

XI N

VS S

D_ C

M odO ut

XO U T

VD D

PD #

RE F

P 1 8 1 8 E / F /G /H

P 1 8 1 9 E / F /G /H

P 1 8 2 0 E / F /G /H

P 1822A

1

8

6

4

3

2

7

5

XI N

VSS

SR S

M o dO ut

MR S

VD D

SSO N #

SR 0

P1818/19/20/21/22 Block Diagram

Output

Divider

XIN

VSS

ModOUT

XOUT

Crystal

Oscillator

Modulation

Phase

Detector

Frequency

Divider

Feedback

Divider

Loop

Filter

VCO

PLL

D_C PD# MRS FRS SRS

VDD

REF