(Preliminary)PL611s-28
1.8V-3.3V PicoPLLTM, World’s Smallest Programmable Clock
FEATURES
DESCRIPTION
The PL611s-28 consumes very low-power while
producing high performance clock outputs of up to
55MHz. Designed for low-power applications with
very stringent space requirement, PL611s-28
consumes about 1.2mA, while producing 2 distinct
outputs of 27MHz and 13.5MHz. Designed to fit in a
small SOT, SC70, or SOT23 package for high
performance applications, the PL611s-28 offers
excellent phase noise and jitter performance. The
power down feature of PL611s-28, when activated,
allows the IC to consume less than 5µA of power,
while its programming flexibility allows generating
any output, using a low-cost crystal or reference
input. In addition, one programmable I/O pin can be
configured as Output Enable (OE), Frequency
switching (FSEL), Power Down (PDB) input, or CLK1
(FOUT, FREF, FREF/2) output.
• Designed for Very Low-Power applications
• Offered in Tiny GREEN/RoHS compliant packages
o 6-pin DFN (2.0mmx1.3mmx0.6mm)
o 6-pin SC70 (2.3mmx2.25mmx1.0mm)
o 6-pin SOT23 (3.0mmx3.0mmx1.35mm)
• Input Frequency:
o Fundamental Crystal: 10MHz to 50MHz
o Reference Input: 1MHz to 200MHz
• Accepts >0.1V reference signal input voltage
• Output Frequency:
o <65MHz @ 1.8V operation
o <90MHz @ 2.5V operation
o <125MHz @ 3.3V operation
• Disabled outputs programmable as HiZ or Active Low.
• Low current consumption:
o <1.2mA @ 27MHz
o < 5µA when PDB is activated
• Single 1.8V, 2.5V, or 3.3V ± 10% power supply
• Operating temperature range from -40°C to 85°C
PACKAGE PIN CONFIGURATION
OE, PDB,
FSEL, CLK1
CLK0
VDD
1
2
3
6
5
4
GND
CLK0
VDD
1
6
5
4
GND
OE, PDB,
FSEL, CLK1
XIN/FIN
OE, PDB, FSEL, CLK1
GND
XOUT
VDD
CLK0
1
2
3
6
5
4
2
3
XIN/FIN
XOUT
XIN/FIN
XOUT
DFN-6L
(2.0mmx1.3mmx0.6mm)
SC70-6L
(2.3mmx2.25mmx1.0mm)
SOT23-6L
(3.0mmx3.0mmx1.35mm)
BLOCK DIAGRAM
R-counter
(8-Bit)
XIN/FIN
XOUT
XTAL
OSC
ref
F
Loop
Filter
Phase
Detector
Charge
Pump
Programmable
CLoad
M-counter
(11-Bit)
F
=F * (2 * M/R)
vco ref
VCO
P-counter
(5-Bit)
CLK0
F
=F / (2 *P)
out vco
Programming
Logic
OE, FSEL,
PDB, CLK1
Programmable Function
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 3/9/07 Page 1
PLL [ PHASELINK CORPORATION ]
