(Preliminary)
PL611s-19
0.5kHz-55MHz MHz to KHz Programmable Clock
TM
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)
•
Input Frequency:
o
Reference Input: 1MHz to 200MHz
o
Non PLL mode, Ref input down to 10kHz
•
Accepts >0.1V reference signal input voltage
•
Output frequency up to 55MHz 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
Power Down (PDB) input, output Enable (OE), or
Frequency Selection Switching input.
•
Disabled outputs programmable as HiZ or Active Low.
•
Low current consumption:
o
<1.0mA with 27MHz & 32kHz outputs
o
< 5 A 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-19 is a low-cost general purpose
frequency synthesizer and a member of PhaseLink’s
Factory Programmable ‘Quick Turn Clock (QTC)’
family. PhaseLink’s PL611s-19 offers the versatility
of using a single Reference Clock input and
producing up to two (kHz or MHz) system clock
outputs. Designed for low-power applications with
very stringent space requirement, PL611s-19
consumes <1.0mA, while producing 2 distinct
outputs of 27MHz and 32kHz. The power down
feature of PL611s-19, when activated, allows the IC
to consume less than 5 A of power.
PL611s-19 fits in a small DFN, SC70, or SOT23
package. Cascading of the PL611s-19 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 Power Down (PDB) input, Output
Enable (OE), or Frequency switching (FSEL). CLK1
can be programmed as (CLK0, F
REF
, F
REF
/2) output.
BLOCK DIAGRAM
FIN
F
REF
R-Counter
(5-bit)
M-Counter
(8-bit)
Phase
Detector
Charge
Pump
Loop
Filter
F
VCO
= F
REF
* (2 * M/R)
VCO
P-Counter
(14-bit)
F
OUT
= F
VCO
/ (2 * P)
Programmable Function
CLK [0:1]
Programming
Logic
OE, PDB, FSEL
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991
www.phaselink.com
Rev 12/12/06 Page 1
PLL [ PHASELINK CORPORATION ]
