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| PLL701-14 Low EMI Spread Spectrum 6x Multiplier Clock FEATURES * * * * * * * * * * Spread Spectrum Clock Generator with integrated 6x frequency multiplier. Input frequency range: 10MHz to 30MHz Output frequency range: 60MHz to 180MHz. Accepts input from external clocks or crystal. Selectable Center Spread SST modulation amplitude. Output Enable feature (OE). TTL/CMOS compatible outputs. 3.3V Operating Voltage. Low short term jitter. Available in 8-Pin 150mil SOIC. PIN CONFIGURATION XIN/FIN XOUT SC0^ SC1^ 1 8 VDD OE^ FOUT GND PLL701-14 2 3 4 7 6 5 XIN/FIN = 10 ~ 30 MHz Note: ^: Internal pull-up resistor (30 k). DESCRIPTION The PLL701-14 is a Spread Spectrum Clock Generator designed to reduce EMI in high-speed digital systems. Its spread spectrum modulation amplitude is selectable via the input selector pins. The chip multiplies any input from 10MHz to 30MHz by 6x. The chip provides an output Enable/Disable input permitting the user to tri-state the output. SPREAD SPECTRUM SELECTION SST Modulation SC1 0 0 1 1 SC0 0 1 0 1 FOUT Magnitude X6 X6 X6 X6 0.250% 0.500% 0.750% n/a Frequency Type 0.125% 0.25% 0.375% SST turned off Fin / 512 47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 08/12/04 Page 1 PLL701-14 Low EMI Spread Spectrum 6x Multiplier Clock BLOCK DIAGRAM XIN/FIN XOUT OE XTAL OSC PLL SST FOUT SC(0:1) Control Logic PIN DESCRIPTION Name XIN/FIN XOUT SC0 SC1 GND FOUT OE VDD Number 1 2 3 4 5 6 7 8 Type I O I I P O I P Description Crystal input to be connected to fundamental parallel mode crystal.(CL=18pF) or clock input. Crystal output. Digital control input to select modulation rate. 30k internal pull-up. Digital control input to select modulation rate. 30k internal pull-up. Ground connection. Modulated Clock Frequency Output (FOUT = 6 x FIN). Output Enable. When low, Tri-states the outputs. 30k internal pull-up. 3.3V Power Supply connection. FUNCTIONAL DESCRIPTION Selectable spread spectrum and modulation rates The PLL701-14 provides center spread modulation as well as selectable modulation rate. Selection is made by connecting pins 3 (SC0) and 4 (SC1) to a logical "zero" or "one", according to the Spread Spectrum Selection table on page 1. Connecting a selection pin to a logical "one" All selection pins have an internal pull-up resistor (30k). This internal pull-up resistor will pull the input value to a logical "one" by default, i.e. when no connection is made to GND. No external pull-up resistor is therefore required for connecting a logical "one" upon power-up. Connecting a selection pin to a logical "zero" Pins 3 (SC0), 4 (SC1), and 7 (OE) simply need to be grounded to pull the input down to a logical "zero". 47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 08/12/04 Page 2 PLL701-14 Low EMI Spread Spectrum 6x Multiplier Clock ELECTRICAL SPECIFICATIONS 1. Absolute Maximum Ratings PARAMETERS Supply Voltage Input Voltage, dc Output Voltage, dc Storage Temperature Ambient Operating Temperature* Junction Temperature Lead Temperature (soldering, 10s) ESD Protection, Human Body Model SYMBOL VDD VI VO TS TA TJ MIN. -0.5 -0.5 -65 -40 MAX. 4.6 VDD+0.5 VDD+0.5 150 85 125 260 2 UNITS V V V C C C C kV Exposure of the device under conditions beyond the limits specified by Maximum Ratings for extended periods may cause permanent damage to the device and affect product reliability. These conditions represent a stress rating only, and functional operations of the device at these or any other conditions above the operational limits noted in this specification is not implied. * Note: Operating Temperature is guaranteed by design for all parts (COMMERCIAL and INDUSTRIAL), but tested for COMMERCIAL grade only. 2. DC/AC Specifications PARAMETERS Supply Voltage Input High Voltage Input Low Voltage Input High Current Input Low Current Output High Voltage Output Low Voltage Input Frequency Maximum interruption of FIN Load Capacitance Short Circuit Current 3.3V Dynamic Supply Current SYMBOL VDD VIH VIL IIH IIL VOH VOL FXIN FIN CL Isc ICC CONDITIONS MIN. 2.97 0.7* VDD TYP. MAX. 3.63 0.3* VDD 100 100 UNITS V V V A A V V MHz MHz s pF mA mA IOH=5mA, VDD =3.3V IOL=6mA, VDD =3.3V When using a crystal When using reference clock When using reference clock Between XIN and XOUT* No Load 2.4 10 10 18 50 20 0.4 30 30 100 *Note: Pin XIN and XOUT each has a 36pF capacitance. When used with a XTAL, the two capacitors combined load the crystal with 18pF. If driving XIN with a reference clock signal, the load capacitance will be 36pF (typical). 47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 08/12/04 Page 3 PLL701-14 Low EMI Spread Spectrum 6x Multiplier Clock 3. TIMING CHARACTERISTICS PARAMETERS Rise Time Fall Time Output Duty Cycle Cycle to Cycle Jitter SYMBOL Tr Tf DT Tcyc-cyc CONDITIONS Measured at 0.8V ~ 2.0V @ 3.3V Measured at 2.0V ~ 0.8V @ 3.3V FOUT=72MHz @ 3.3V MIN. 0.8 0.78 45 TYP. 0.95 0.85 50 MAX. 1.1 0.9 55 100 UNITS ns ns % ps 47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 08/12/04 Page 4 PLL701-14 Low EMI Spread Spectrum 6x Multiplier Clock PACKAGE INFORMATION 8 PIN Narrow SOIC ( mm ) SOIC Symbol A A1 B C D E H L e Min. 1.47 0.10 0.33 0.19 4.80 3.80 5.80 0.38 1.27 BSC Max. 1.73 0.25 0.51 0.25 4.95 4.00 6.20 1.27 A1 B C L e E H D A ORDERING INFORMATION For part ordering, please contact our Sales Department: 47745 Fremont Blvd., Fremont, CA 94538, USA Tel: (510) 492-0990 Fax: (510) 492-0991 PART NUMBER The order number for this device is a combination of the following: Device number, Package type and Operating temperature range PLL701-14 S C PART NUMBER TEMPERATURE C=COMMERCIAL I=INDUSTRIAL PACKAGE TYPE S=SOIC Order Number PLL701-14SC-R PLL701-14SC Marking P701-14SC P701-14SC Package Option SOIC -Tape and Reel SOIC -Tube PhaseLink Corporation, reserves the right to make changes in its products or specifications, or both at any time without notice. The information furnished by Phaselink is believed to be accurate and reliable. However, PhaseLink makes no guarantee or warranty concerning the accuracy of said information and shall not be responsible for any loss or damage of whatever nature resulting from the use of, or reliance upon this product. LIFE SUPPORT POLICY: PhaseLink's products are not authorized for use as critical components in life support devices or systems without the express written approval of the President of PhaseLink Corporation. 47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 08/12/04 Page 5 |
Price & Availability of PLL701-14SI
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