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PhaseLink Corporation

PL611S-18 Datasheet Preview

PL611S-18 Datasheet

PicoPLLTM KHz to MHz Programmable Clock

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P(Preliminary) L611s-18
0.5kHz-125MHz MHz to KHz Programmable ClockTM
FEATURES
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)
Accepts Crystal or Reference Clock inputs
Input Frequency:
www.DataSheet4U.coomFundamental crystal: 10MHz to 50MHz
o Reference Input: 1MHz to 125MHz
Accepts >0.1V reference signal input voltage
Output Frequency 0.5kHz to 125MHz CMOS.
o 65MHz @ 1.8V operation
o 90MHz @ 2.5V operation
o 125MHz @ 3.3V operation
One programmable I/O pin can be configured as
OE, PDB, FSEL or CLK1
Low current consumption:
o <1.0mA with 27MHz & 32kHz outputs
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
DESCRIPTION
The PL611s-18 is a low-cost general purpose
frequency synthesizer and a member of PhaseLink’s
PicoPLL family, the worlds smallest programmable
clocks. PhaseLink’s PL611s-18 offers the versatility
of using a single Crystal (MHz) or Reference Clock
input and producing up to two (kHz/MHz) system
clocks, or a combination of Reference and low
frequency outputs. The PL611s-18 is designed for
low-power applications with very stringent space
requirements and consumes ~1.0mA, while
producing 2 distinct outputs of 27MHz and 32kHz.
The power down feature of PL611s-18, when
activated, allows the IC to consume less than 5µA of
power.
The PL611s-18 fits in a small DFN, SC70, or SOT23
package. Cascading of the PL611s-18 with other
PhaseLink programmable clocks allow generating
system level clocking requirements, thereby
reducing the overall system implementation cost.
In addition, one programmable I/O pin can be
configured as Output Enable (OE), Frequency
switching (FSEL), Power Down (PDB) input, or CLK1
(CLK0, FREF, FREF/2) output.
BLOCK DIAGRAM
XIN/FIN
XOUT
XTAL
OSC
Programmable
CLoad
FREF
R-Counter
(5-bit)
M-Counter
(8-bit)
Phase
Detector
FVCO = FREF * (2 * M/R)
Charge
Pump
Loop
Filter
VCO
Programmable Function
P-Counter
FOUT = FVCO / ( 2 * P) (14-bit)
Programming
Logic
CLK
OE, PDB,
FSEL, CLK1
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 2/23/07 Page 1




PhaseLink Corporation

PL611S-18 Datasheet Preview

PL611S-18 Datasheet

PicoPLLTM KHz to MHz Programmable Clock

No Preview Available !

P(Preliminary) L611s-18
0.5kHz-125MHz MHz to KHz Programmable ClockTM
KEY PROGRAMMING PARAMETERS
CLK
Output Frequency
Output Drive Strength
FOUT = FREF * M / (R * P)
Where M=8 bit
R= 5 bit
P= 14 bit
CLK0 = FOUT, FREF or FREF / (2*P)
www.DataSheCetL4KU1.co=mFREF, FREF/2, CLK0 or CLK0/2
Three optional drive strengths to
choose from:
Low: 4mA
Std: 8mA (default)
High: 16mA
Programmable
Input/Output
One output pin can be configured as:
OE - input
FSEL - input
PDB – input
CLK1 – output
Programmable CLoad
PACKAGE PIN CONFIGURATION AND ASSIGNMENT
XIN/FIN
GND
CLK0
1
2
3
CLK0
6 XOUT
GND
5 OE,PDB,FSEL,CLK1
4 VDD
XIN/FIN
1
2
3
6 VDD
5
OE, PDB,
FSEL, CLK1
4 XOUT
DFN-6L
(2.0mmx1.3mmx0.6mm)
SC70-6L
(2.3mmx2.25mmx1.0mm)
CLK0
GND
XIN/FIN
1
2
3
6 VDD
5
OE, PDB,
FSEL, CLK1
4 XOUT
SOT23-6L
(3.0mmx3.0mmx1.35mm)
Name
XIN, FIN
GND
CLK0
VDD
Pin Assignment
DFN SC70 SOT
Pin # Pin# Pin#
133
222
311
466
OE, PDB,
FSEL, CLK1
5
5
5
Type
Description
I Crystal or Reference input pin.
P GND connection
O Programmable Clock Output
P VDD connection
This programmable I/O pin can be configured as an Output
Enable (OE) input, Power Down input (PDB), Frequency Select
input (FSEL) or CLK1 output. This pin has an internal 60KΩ
pull up resistor on OE, PDB and FSEL.
I/O State
OE
PDB
FSEL
0 Tri-state CLK Power Down Mode
1 (default) Operating mode Operating mode
Bank 0
Bank 1
XOUT
6 4 4 O Crystal Output pin. Do Not Connect if FIN is used.
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 2/23/07 Page 2


Part Number PL611S-18
Description PicoPLLTM KHz to MHz Programmable Clock
Maker PhaseLink Corporation
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PL611S-18 Datasheet PDF






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