PL611-20 Datasheet, PDF (1/7 Pages) PhaseLink Corporation – Programmable Quick Turn Clock

PL611-20
Programmable Quick Turn Clock^TM
FEATURES
PIN CONFIGURATION
• 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
o 3^RD overtone crystal: Up to 75MHz
• 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
XIN/FIN 1
GND 2
CLK0 3
CLK1 4
8 XOUT
7 CLK2,OE,FSEL
6 NC
5 VDD
SOP-8
MSOP-8
CLK1 1
GND 2
XIN/FIN 3
6 VDD
5 CLK2,OE,FSEL
4 XOUT
SOT-23
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
XIN/FIN
XOUT
FSEL
OE
CLoad
Xtal ^FRef R-counter
OSC
(8-bit)
M - counter
(10-bit)
Phase
Detector
Charge
Pump
Loop
Filter
F_VCO = F _Ref. * (2 * M /R)
VCO
P-counter
(5-bit)
F_Out = F_VCO / (2 * P)
Programmable Function
/1, /2
CLK [0:1]
CLK2, OE, FSEL
47745 Fremont Blvd., Fremont, California 94538 Tel [phone] Fax [phone]
Rev 07/06/05 Page 1