Multimedia Clocks

PL603-27

47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990, FAX (510) 492-0991

Rev.: 07-12-04

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PRODUCT DESCRIPTION

PhaseLink’s PL603-27 is a clock generator IC, specifically designed to accommodate the clock requirements of

the set top box, HDTV, and personal video recording (PVR) receiver equipment. It offers seven different clock

signals while utilizing a single low-cost 27MHz crystal input. PhaseLink’s PL603-27 is designed to save board

space and implementation cost while producing multiple system clock outputs.

Figure 1: Overall PL603-27 Block Diagram

Figure 2: PL603-27 Pin Assignment

FEATURES

•

High accuracy synthesis Phase Locked Loop design

•

Eliminates costly quartz crystals and crystal oscillators

•

Very low jitter and Phasenoise

•

Single 27MHz crystal input

•

Seven different output frequencies:

o

Two 27MHz output

o

One 83.33MHz output

o

One 12.288MHz output

o

One 3.3864MHz output

o

One 1.536MHz output

o

One 48KHz output

•

OE (output enable) feature

•

Low-power sub-micron CMOS process

•

Single 3.3V +/- 10% power supply

•

Available in 28-pin SSOP package

Xtal

OSC

PLL

PLL

27MHz Xtal

÷

÷

÷

27MHz

48kHz

1.536MHz

3.6864MHz

12.288MHz

83.33MHz

27MHz

OE

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

22

23

24

25

26

27

28

21

20

19

18

17

DNC

OE

XOUT

XIN

27MHz

27MHz

83.33MHz

3.6864MHz

12.288MHz

1.536MHz

48KHz

VDD48K

VDDOSC

VDDBUF

VDDBUF

VDD83M

VDD27M

VDDANA

VDDANA

GNDOSC

GNDDIG

GNDBUF

GNDBUF

GND83M

GND27M

GNDANA

GNDANA

GND48K