PL611-20

47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991

Rev 07/06/05 Page 1

FEATURES

• Advanced programmable PLL design

• Very low Jitter and Phase Noise (< 40ps Pk-Pk typical)

• Up to 3 outputs

• Output frequency up to 200MHz CMOS.

• Crystal inputs:

o Fundamental crystal: 10MHz-30MHz

• Accepts <1.0V reference signal input voltage

• One programmable I/O pin can be configured as

Output Enable (OE), or Frequency Selection input

(FSEL), or Reference clock.

• Single 2.5V or 3.3V ± 10% power supply

• Operating temperature range from -40°C to 85°C

• Available in 8-pin MSOP/SOIC, 6-pin SOT Green/

RoHS compliant packages, or Die

PIN CONFIGURATION

DESCRIPTION

The PL611-20 is a low-cost general purpose frequency synthesizer and a member of PhaseLink’s Factory

Programmable ‘Quick Turn Clock (QTC)’ family. PhaseLink’s PL611-20 product family can generate any output

frequency up to 200 MHz from fundamental crystal input between 10 MHz - 30 MHz, or a 3rd overtone crystal of

up to 75Mhz.

BLOCK DIAGRAM

Phase

Detector

Charge

Pump

Loop

Filter

VCO

Xtal

OSC

XIN/FIN

XOUT

P-counter

(5-bit)

M-counter

(10-bit)

R-counter

(8-bit)

CLK [0:1]

CLK2, OE, FSEL

FRef

OE

FSEL

CLoad

Programmable Function

/1, /2

1

2

3

45

6

7

8

XIN/FIN

GND

CLK0

CLK1

XOUT

NC

VDD

CLK2,OE,FSEL

1

2

34

5

6

CLK1

GND

XIN/FIN

VDD

XOUT

CLK2,OE,FSEL

SOP-8

MSOP-8

SOT-23

1

2

3

45

6

7

8

XIN/FIN

GND

CLK0

CLK1

XOUT

NC

VDD

CLK2,OE,FSEL

1

2

34

5

6

CLK1

GND

XIN/FIN

VDD

XOUT

CLK2,OE,FSEL

SOP-8

MSOP-8

SOT-23