PL671-25 PhaseLink Corp., PL671-25 Datasheet
PL671-25
Manufacturer Part Number
PL671-25
Description
Manufacturer
PhaseLink Corp.
Datasheet
1.PL671-25.pdf
(6 pages)
Specifications of PL671-25
Case
SOP8
Date_code
08+
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Manufacturer
Quantity
Price
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Part Number:
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XIN/FIN
On / Off
XOUT
FEATURES
Accepts Crystal or Reference Clock input
Output Frequency up to 200MHz
Center and Down Spread Spectrum Modulation
Spread Spectrum On / Off Control
Programmable Drive Strength, 4mA, 8mA or 16mA
Max 100ps Cycle to Cycle jitter
Single 2.5V ~ 3.3V, ± 10% power supply
Operating temperature range from -40C to 85C
Available in SOP-8L and TSSOP-8L GREEN/RoHS
DESCRIPTION
The PL671-25 is a high performance programmable spread spectrum clock. It allows for programming the
modulation type (Center or Down Spread), 16 modulation magnitudes (±0.125% to ±2.0% or -0.25% to -4.0%) and
multiplication factor. The SSOnOff pin can be used to enable and disable the spread on the output for easy
system performance comparison during EMI testing.
BLOCK DIAGRAM
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 5/8/08 Page 1
SSOnOff
SS
compliant packages
o Crystal: 10MHz - 40MHz
o Reference Clock: 1MHz - 200MHz
Pin
1
0
Built-in Crystal load Capacitors
No external caps are required
SS Off
SS On
CLK0
Xtal
Osc
1 – 200 (REF)
10 – 40 (Xtal)
(MHz)
Input
PicoEMI
Counter
Counter
M-
R-
Spectrum Type
T M
Configurable as
Center or Down
Detector
Phase
Spread
Programmable Spread Spectrum Clock
Charge
Pump
Center: ±0.125% to ±2.0%
XIN/FIN
Loop
Filter
Modulation Amplitude
Down: -0.25% to -4.0%
XOUT
Note: ^ Denotes 60KΩ Pull-up resistor
PDB^
Spread Spectrum
VDD
Configurable as
PIN CONFIGURATION
Modulation
VCO
SS
(Preliminary)
1
2
3
4
TSSOP-8L
SOP-8L
8
7
6
5
(Programmable
Multiplier)
SSOnOff^
CLK0
REFOUT
GND
1 – 200
Output
(MHz)
REFOUT
CLK0
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