PL611-01 Datasheet, PDF (1/6 Pages) PhaseLink Corporation – Programmable Quick Turn Clock

PL611-01
Programmable Quick Turn Clock^TM
FEATURES
PIN CONFIGURATION
• 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 3^RD overtone crystal: Up to 75MHz
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
XIN/FIN
GND
CLK0
CLK1
1
8
2
7
3
6
4
5
SOP-8
MSOP-8
XOUT
CLK2,OE,PDB,FSEL
NC
VDD
CLK1 1
GND 2
XIN/FIN 3
6 VDD
5 CLK2,OE,PDB,FSEL
4 XOUT
SOT-6
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
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)
FSEL
OE
PDB
CLoad
P-counter
(5-bit)
F_out = F_VCO / (2 * P)
Programmable Function
Selectable
/1,/2,/4,/8
Selectable
/1,/2
VCO
CLOCK[0:2]
47745 Fremont Blvd., Fremont, California 94538 Tel [phone] Fax [phone]
Rev 09/27/05 Page 1