PL611-01

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

Rev 09/27/05 Page 1

FEATURES

• Advanced programmable PLL design

• Very low Jitter and Phase Noise (30-70ps Pk-Pk typical)

• Up to 3 programmable outputs

• Output frequency up to 200MHz CMOS.

• Accepts Crystal or reference clock inputs

o Fundamental crystal: 10MHz-30MHz

o Reference input: Up to 200MHz

• Accepts <1.0V reference signal input voltage

• One programmable I/O pin can be configured as

Programmable clock, or Frequency Selection input,

or output Enable (OE) or Power Down (PDB) input.

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

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

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

RoHS compliant Packages

PIN CONFIGURATION

DESCRIPTION

The PL611-01 is a low-cost general purpose frequency synthesizer and a member of PhaseLink’s Factory

Programmable ‘Quick Turn Clock (QTC)’ family. PhaseLink’s PL611-01 product family offers the versatility of

using a single Crystal or Reference Clock input and producing up to three different system clocks. They 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, or a Reference clock input of up to 200 MHz. Cascading of the ICs to produce

additional clock frequencies is also supported.

BLOCK DIAGRAM

Phase

Detector

Charge

Pump

Loop

Filter

VCO

Selectable

/1,/2,/4,/8

Selectable

/1,/2

Xtal

OSC

XIN/FIN

XOUT

P-counter

(5-bit)

M-counter

(10-bit)

R-counter

(8-bit)

FRef

OE

FSEL

PDB

Programmable Function

CLoad

CLOCK[0:2]

1

2

3

4

5

6

7

8

XIN/FIN

GND

CLK0

CLK1

XOUT

NC

VDD

CLK2,OE,PDB,FSEL

1

2

3

4

5

6

CLK1

GND

XIN/FIN

VDD

XOUT

CLK2,OE,PDB,FSEL

SOP-8

MSOP-8

SOT-6