PL611S-27 Datasheet, PDF (1/9 Pages) PhaseLink Corporation – 1.8V to 3.3V PicoPLLTM Programmable Clock

P (Preliminary) L611s-27
1.8V to 3.3V PicoPLL^TM Programmable Clock
FEATURES
• Advanced One Time Programmable (OTP) PLL design
• Programmable PLL or direct oscillation operation
• Very low Jitter and Phase Noise (30-70ps Pk-Pk typical)
• Output Frequency up to
o 65MHz @ 1.8V operation
o 9/MHz @ 2.5V operation
o 125MHz @ 3.3V operation
• Reference Input Frequency: 1MHz to 200MHz
• Accepts >0.1V reference signal input voltage
• Low current consumption, <10µA when PDB is
activated
• One programmable I/O pin can be configured as
Output Enable (OE), Frequency Switching
(FSEL), or Power Down (PDB) input.
• Disabled outputs programmable as HiZ or Active Low.
• Single 1.8V, 2.5V, or 3.3V ± 10% power supply
• Operating temperature range from 0°C to 70°C
• Available in 6-pin SOT23 & DFN GREEN/RoHS
Compliant packages
DESCRIPTION
The PL611s-27 is a general purpose frequency
synthesizer and a member of PhaseLink’s PicoPLL
product family. Designed to fit in a small 6-pin DFN,
or 6-pin SOT package for high performance
applications, the PL611s-27 offers very low phase
noise, jitter, and power consumption, while offering 2
clock outputs. The Frequency Switching (FSEL)
capability of PL611s-27 allows for programming two
sets of frequencies, while the power down feature of
PL611s-27, when activated, allows the IC to
consume less than 10µA of power. PL611s-27’s
programming flexibility allows generating any output
using a Reference input signal.
PACKAGE PIN CONFIGURATION
FIN 1
CLK1 2
GND 3
6 OE, PDB, FSEL
5 VDD
4 CLK0
CLK1 1
GND 2
FIN ₃
6 CLK0
5 ^VDD
4 ^{OE, PDB, FSEL}
DFN-6L
(2.0mmx1.3mmx0.6mm)
SOT23-6L
(3.0mmx3.0mmx1.35mm)
BLOCK DIAGRAM
FIN
F^{ref R-counter}
(8-Bit)
M-counter
(11-Bit)
Phase
Detector
Fvco=Fref* (2 * M /R)
Charge
Pump
Loop
Filter
VCO
P-counter
(5-Bit) _{Fout=FVCO/(2*P)}
CLK1
CLK0
Programmable Function
Programming
Logic
OE, PDB,
FSEL
47745 Fremont Blvd., Fremont, California 94538 Tel [phone] Fax [phone] www.phaselink.com Rev 2/25/07 Page 1