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PDF PL671-05 Data sheet ( Hoja de datos )
| Número de pieza | PL671-05 | |
| Descripción | (PL671-05 / -06) Programmable Spread Spectrum Clock | |
| Fabricantes | PLL | |
| Logotipo |  |
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P(Preliminary) L671-05/-06
PicoEMITM Programmable Spread Spectrum Clock
FEATURES
• Advanced programmable PLL with Spread Spectrum
• Accepts reference clock input: 10-200MHz
• Output frequency range: up to 166MHz @ 2.5V or
up to 200MHz @ 3.3V operation.
• Programmable Spread Spectrum modulation
magnitude:
o Center Spread: ±0.125% to ±2.0% in ±0.125% steps
o Down Spread: -0.25% to -4.0% in 0.25% steps
• Four pre-programmed configurations.
• Spread Spectrum On/Off selection.
• Programmable output drive (4mA, 8mA, 16mA)
• Low Cycle to Cycle jitter.
• Single 2.5V or 3.3V ± 10% power supply.
• Accepts ≥0.1V reference signal input voltage.
• Available in 6-pin SOT23 GREEN/RoHS compliant
packages.
PIN CONFIGURATION
DESCRIPTION
The PL671-05 and -06 are advanced programmable clock
and Spread Spectrum clock generators (PSSCG), and
members of PhaseLink’s PicoPLL™ Programmable
Clock family.
The PL671-05 and -06 offer up to 200MHz outputs, and
allow for programming the modulation type (center or down
Spread), as well as 16 modulation magnitudes (±0.125 to
±2.0% or -0.25 to -4.0%) to choose from. In addition,
the CSEL[0:1] pins can be used to toggle the device
thru 4 pre-programmed configurations. The Spread
Spectrum modulation can be turned ‘ON/OFF’, allowing for
completing a design with PL671-05/-06 and having the
assurance of turning ‘ON’ the EMI modulation, if EMI
becomes an issue. The frequency modulation of the
PL671-05 and -06 greatly reduces the fundamental
and harmonic frequencies’ peak magnitude,
therefore reducing the system level Electro Magnetic
Interference (EMI), by as much as 20dB.
BLOCK DIAGRAM
Note: ^ Denotes 60KΩ Pull-up resistor
R-Counter
9-bits
Modulation Magnitude*
CSEL[0:1]
CLK0
SST On/Off
* Optional Pre-defined
Modulation Magnitude Control
M-Counter
11-bits
P-Counter
6-bits
Odd/Even
Programmable Function
÷8
Phase
Detector
÷8
Charge
Pump
FVCO = FREF * (M/R)
FOUT = FVCO / P
Selectable
÷1 or ÷2
SST
Modulation
Loop
Filter
VCO
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 2/9/07 Page 1
1 page  
www.DataSheet4U.com
P(Preliminary) L671-05/-06
PicoEMITM Programmable Spread Spectrum Clock
DC SPECIFICATIONS
PARAMETERS
SYMBOL
CONDITIONS
Supply Current, Dynamic, with
Loaded Outputs
At 25MHz, 3.3V,
IDD load=15pF, (PDB=1)
PDB=0
Operating Voltage
VDD
Output Low Voltage
VOL IOL = +4mA (Std. Drive)
Output High Voltage
VOH IOH = -4mA (Std. Drive)
Output Current, Low Drive
IOSD VOL = 0.4V, VOH = 2.4V
Output Current, Standard Drive IOSD VOL = 0.4V, VOH = 2.4V
Output Current, High Drive
IOHD VOL = 0.4V, VOH = 2.4V
MIN. TYP.
2.25
VDD – 0.4
4
8
16
MAX.
15
10
3.63
0.4
UNITS
mA
µA
V
V
V
mA
mA
mA
PACKAGE DRAWINGS (GREEN PACKAGE COMPLIANT)
SOT23-6 L
Symbol
A
A1
A2
b
c
D
E
H
L
e
Dimension in MM
Min. Max.
1.05 1.35
0.05 0.15
1.00 1.20
0.30 0.50
0.08 0.20
2.80 3.00
1.50 1.70
2.60 3.00
0.35 0.55
0.95 BSC
Pin1 Dot
EH
D
A2 A
A1 C
b
e
L
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 2/9/07 Page 5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet PL671-05.PDF ] | |
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