Spread Spectrum Multiplier Spread Spectrum Clock Generator/Multip

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Spread Spectrum Multiplier Spread Spectrum Clock Generator/Multip

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PLL701-50
Spread Spectrum Multiplier
Spread Spectrum Clock Generator/Multiplier with output selectable from 13MHz 224MHz output with output enable. 13MHz input frequency from crystal external clock signal. Reduced from Spread Spectrum Modulation, with selectable modulation magnitude Center Spread, Down Spread Asymmetric Spread. TTL/CMOS compatible outputs. 3.3V Operating Voltage. maximum cycle-to-cycle jitter. Available 16-Pin 150mil SSOP. BLOCK DIAGRAM
XIN/FIN XOUT SC(0:3) SD(0:1) M(0:2) XTAL Control Logic FOUT
CONFIGURATION
AVDD
1700, 2540 AVDD
DESCRIPTION
PLL701-50 Clock Generator Multiplier high-speed digital systems. uses PhaseLink's unique (Patent Pending) Spread Spectrum Technology (SST) permits different levels reduction selecting amplitude applied SST. feature disabled. chip operates with input frequencies ranging from provides multiplication output.
XOUT/SD0*^
(Optional)
(Optional)
GNDOSC
C501A A2727
AVDD REF/SD1*^ (optional) (optional) SC3^
OUTPUT CLOCK (FOUT) SELECTION
FIN/XIN (MHz) Multiplier FOUT (MHz)
TESTB SC0^ SC1^
FOUT GNDBUF
SC2^
SPECIFICATIONS
Name Size Reverse side dimensions Thickness Value micron micron
47745 Fremont Blvd., Fremont, California 94538 (510) 492-0990 (510) 492-0991 www.phaselink.com 09/20/04 Page
PLL701-50
Spread Spectrum Multiplier
SPREAD SPECTRUM SELECTION TABLE
Modulation Modulation Magnitude Frequency 0.250% 0.500% 0.750% 1.250% 1.500% 1.750% 2.000% Modulation Type 0.125% 0.25% 0.375% 0.625% +0.125 -1.125% 0.75% +0.25 -1.25% 0.875% +0.375 -1.375% 1.00% +0.50 -1.5% -2.00% 1.125% +0.625 -1.625% +0.125 -2.125% 1.25% +0.25 -2.25% +0.75 -1.75% 1.375% +0.875 -1.875% +0.375 -2.375% 1.50% -3.00% +1.00 -2.00% +0.50 -2.50% 1.625% +1.125 -2.125% +0.625 -2.625% +0.125 -3.125% 1.75% +1.25 -2.25% +0.75 -2.75% +0.25 -3.25% 1.875% +1.37 -2.375% +0.875 -2.875% +0.375 -3.375% turned turned turned turned
2.250%
2.500%
2.750% 3.000%
3.250%
3.500%
3.750%
0.00
Notes: Center Spread. Asymmetric Spread. Down Spread.
47745 Fremont Blvd., Fremont, California 94538 (510) 492-0990 (510) 492-0991
www.phaselink.com
09/20/04 Page
PLL701-50
Spread Spectrum Multiplier
FUNCTIONAL DESCRIPTION Selectable spread spectrum modulation magnitude
PLL701-50 provides selectable multiplier factors 8X), selectable spread spectrum modulation type, well selectable modulation magnitude. Selection made connecting specific input pins logical "zero" "one". Pins (SC0), (SC1), (SC2) (SC3) used inputs select spread spectrum modulation magnitude shown spread spectrum selection table (page Pins (M2), (M1), (M0) used inputs select multiplication factor shown output clock selection table (page output enable pin, which tri-states outputs when (logical "zero"). order reduce number pins chip, PLL701-50 uses pins (XOUT/SD0 REF/SD1) bi-directional pins. pins serve modulation type selector inputs (SD0 SD1) upon power-up (see spread spectrum selection table page XOUT crystal connection (pin output signal (pin soon inputs have been latched.
Connecting selection logical "one"
selection pins have internal pull-up resistor (30k pins 120k This internal pull-up resistor will pull input value logical "one" (pull-up) default, i.e. when resistive load connected between GND. external pull-up resistor therefore required connecting logical "one" upon power-up.
Connecting selection logical "zero"
input only pin, i.e. input pins except XOUT/SD0 (pin REF/SD1 (pin 14), simply needs grounded pull input down logical "zero". Bidirectional pins pins will need external resistor. resistor recommended 4.7k resistor recommended.
ELECTRICAL SPECIFICATIONS
Absolute Maximum Ratings PARAMETERS
Supply Voltage Input Voltage, Output Voltage, Storage Temperature Ambient Operating Temperature* Junction Temperature Lead Temperature (soldering, 10s) Protection, Human Body Model
SYMBOL
MIN.
-0.5 -0.5
MAX.
+0.5 +0.5
UNITS
Exposure device under conditions beyond limits specified Maximum Ratings extended periods cause permanent damage device affect product reliability. These conditions represent stress rating only, functional operations device these other conditions above operational limits noted this specification implied. Note: Operating Temperature guaranteed design parts (COMMERCIAL INDUSTRIAL), tested COMMERCIAL grade only.
47745 Fremont Blvd., Fremont, California 94538 (510) 492-0990 (510) 492-0991
www.phaselink.com
09/20/04 Page
PLL701-50
Spread Spectrum Multiplier
DC/AC Specifications PARAMETERS
Supply Voltage Input High Voltage Input Voltage Input High Current Input Current Output High Voltage Output Voltage Input Frequency Maximum interruption Load Capacitance Pull-up Resistor Pull-up Resistor Short Circuit Current 3.3V Dynamic Supply Current
SYMBOL
CONDITIONS
MIN.
2.97 0.7*
TYP.
MAX.
3.63 0.3*
UNITS
=5mA, =3.3V =6mA, =3.3V When using crystal When using reference clock When using reference clock Between XOUT* 3,4,5,6,7,8,11,12,14 Load
Output Clock Selection table page Output Clock Selection table page
*Note: XOUT each 36pF capacitance. When used with XTAL, capacitors combined load crystal with 18pF. driving with reference clock signal, load capacitance will 36pF (typical).
Timing Characteristics PARAMETERS
Rise Time Fall Time Output Duty Cycle Cycle Cycle Jitter Cycle Cycle Jitter
SYMBOL
cyc-cyc cyc-cyc
CONDITIONS
Measured 0.8V 2.0V 3.3V Measured 2.0V 0.8V 3.3V FOUT 3.3V FOUT 3.3V
MIN.
0.78
TYP.
0.95 0.85
MAX.
UNITS
47745 Fremont Blvd., Fremont, California 94538 (510) 492-0990 (510) 492-0991
www.phaselink.com
09/20/04 Page
PLL701-50
Spread Spectrum Multiplier
ASSIGNMENT
Name GNDBUF FOUT (Optional) (Optional) REF/SD1 AVDD AVDD AVDD (Optional) (Optional) XOUT/SD0 GNDOSC TESTB (LOWER LEFT CORNER: (µm) (µm) 338.9 780.5 1027.6 1127.3 1284.5 1595.1 1595.1 1595.1 1595.1 1595.1 1595.1 1595.1 1595.1 1595.1 1595.1 1595.1 1595.1 1369.2 1037.3 824.7 529.7 105.6 105.6 105.6 105.6 105.6 105.6 105.6 105.6 105.6 105.6 105.6 105.6 105.6 104.7 104.7 104.7 104.7 104.7 104.7 139.7 381.7 596.3 811.9 970.3 1069.3 1312.3 1555.6 1656.8 1879.9 2093 2390.6 2435 2435 2435 2435 2343.5 2136.1 2035.6 1934.9 1741.5 1641.4 1396.2 1180.3 993.5 836.7 680.1 354.9 110.7 Disables multiplication when pulled low. crystal fine tuning. Internal pull Digital control input select modulation magnitude.30k internal pull-up. Digital control input select modulation magnitude.30k internal pull-up. Digital control input select multiplier. internal pull-up. Digital control input select multiplier. internal pull-up. Digital control input select multiplier. internal pull-up. Ground, Oscillator Circuitry Digital control input select modulation magnitude.30k internal pull-up. 3.3V power supply, Optional 3.3V power supply, Optional 3.3V power supply. power-up, this acts input select modulation type latched After input sampling, this provides buffered Reference Clock Output same frequency crystal clock input. internal pull-up. 3.3V Analog power supply. 3.3V Analog power supply. 3.3V Analog power supply. Ground, Optional Ground, Optional Crystal input connected fundamental parallel mode crystal. =18pF) clock input. power-up, this acts input select modulation type. After input sampling, used crystal output connector. 120k internal pull resistor. Output Enable. When low, Tri-states outputs. internal pull-up. Ground. Ground. Ground. Ground, Buffer Circuitry Modulated Clock Frequency Output. input frequency multiplied M(0:2), modulation type selected SD(0:1) modulation rate selected SC(0:3). Description Digital control input select modulation magnitude.30k internal pull-up.
47745 Fremont Blvd., Fremont, California 94538 (510) 492-0990 (510) 492-0991
www.phaselink.com
09/20/04 Page
PLL701-50
Spread Spectrum Multiplier
ORDERING INFORMATION
part ordering, please contact Sales Department:
47745 Fremont Blvd., Fremont, 94538, Tel: (510) 492-0990 Fax: (510) 492-0991
PART NUMBER
order number this device combination following: Device number, Package type Operating temperature range
PLL701-50
PART NUMBER
TEMPERATURE C=COMMERCIAL I=INDUSTRIAL PACKAGE TYPE
Order Number
PLL701-50DC
Marking
P701-50DC
Package Option
-Waffle Pack
PhaseLink Corporation, reserves right make changes products specifications, both time without notice. information furnished Phaselink believed accurate reliable. However, PhaseLink makes guarantee warranty concerning accuracy said information shall responsible loss damage whatever nature resulting from reliance upon this product. LIFE SUPPORT POLICY: PhaseLink's products authorized critical components life support devices systems without express written approval President PhaseLink Corporation.
47745 Fremont Blvd., Fremont, California 94538 (510) 492-0990 (510) 492-0991
www.phaselink.com
09/20/04 Page

Spread Spectrum Multiplier Spread Spectrum Clock Generator/Multip

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