PL611-05 Datasheet, PDF (1/4 Pages) PhaseLink Corporation – Programmable Quick Turn Clock

PL611-05
Programmable Quick Turn Clock^TM
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
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 CONFIGURATION
CLK1 1
GND 2
XIN/FIN 3
6 VDD
5 CLK2
4 XOUT
SOT- 23
PIN DESCRIPTION
Name
CLK1
GND
XIN/FIN
XOUT
CLK2
Pin
#
Type
Description
1
O Programmable Clock Output
2
P GND connection
3
I Crystal or Ref. input pin
4
O Crystal output pin
Programmable Clock or
5
B _{Reference Output}
VDD
6
P VDD connection
BLOCK DIAGRAM
XIN/FIN
XOUT
Xtal ^FRef R-counter
OSC
(8-bit)
M - counter
(10-bit)
Phase
Detector
Charge
Pump
Loop
Filter
F_VCO = F _Ref. * (2 * M /R)
P-counter
(5-bit)
F_out = F_VCO / (2 * P)
Programmable Function
Selectable
/1,/2,/4,/8
Selectable
/1,/2
VCO
CLK[1:2]
47745 Fremont Blvd., Fremont, California 94538 Tel [phone] Fax [phone] www.phaselink.com Rev 05/05/05 Page 1