PL611-05

47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 05/05/05 Page 1

FEATURES

• Advanced programmable PLL design

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

• Up to 2 programmable outputs

• Output frequency up to 35MHz CMOS.

• Accepts Crystal clock input

PIN CONFIGURATION

o Fundamental crystal: 10MHz-30MHz

o Reference input: Up to 100MHz

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

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

• Available in 6-pin SOT Green/RoHS compliant Pkg.

DESCRIPTION

The PL611-05 is a low-cost general purpose

frequency synthesizer and a member of PhaseLink’s

Programmable ‘Quick Turn Clock (QTC)’ family.

PhaseLink’s PL611-05 offers generating two system

clock frequencies of up to 35MHz form a 10-30MHz

fundamental crystal or a Reference clock source.

Cascading of the ICs to produce additional clock

frequencies is also supported.

PIN DESCRIPTION

Name

Pin

#

Type

Description

CLK1

1

O

Programmable Clock Output

GND

2

P

GND connection

XIN/FIN

3

I

Crystal or Ref. input pin

XOUT

4

O

Crystal output pin

CLK2

5

B

Programmable Clock or

Reference Output

VDD

6

P

VDD connection

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

Programmable Function

CLK[1:2]

1

2

3

4

5

6

CLK1

GND

XIN/FIN

VDD

XOUT

CLK2

SOT-23