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| PLL501-21/23 VCXO Clock Generator IC FEATURES * * * * * * * * On-chip tunable voltage-controlled crystal oscillator circuitry (VCXO) allows precise system frequency tuning (pull range 200ppm minimum). VCXO tuning range: 0-3.3V. Uses inexpensive fundamental-mode crystals. Integrated phase-locked loop (PLL) multiplies VCXO frequency to the higher system frequencies needed. 3.3V supply voltage. Small circuit board footprint (8-pin 0.150'' SOIC). Custom frequency selections available. 12mA output drives capability at TTL level. PIN CONFIGURATION XIN VDD VIN GND 1 2 3 4 8 7 6 5 XOUT GND VDD CLK Table 1: Crystal / Output Frequencies DEVICE PLL501-21 F XIN (MHz) 13.5 13.5 CLK (MHz) 27 54 PLL501-XX DESCRIPTIONS The PLL501-21/23 is a monolithic low Jitter, high performance CMOS clock generator IC. It has a circuitry that implements a voltage-controlled crystal oscillator when an external resonator (nominally 13.5MHz) is attached. The VCXO allows device frequencies to be precisely adjusted for matching requirements. This product is ideal for Set-Top Box and multimedia synthesizer applications. BLOCK DIAGRAM PLL501-23 Note: Contact PhaseLink for custom PLL Frequencies XIN VCXO PLL XOUT VIN Output Buffer CLK 47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 Rev 01/15/01 Page 1 PLL501-21/23 VCXO Clock Generator IC PIN DESCRIPTIONS Name XIN VDD VIN GND CLK VDD GND XOUT Number 1 2 3 4 5 6 7 8 Type I P I P O P P O Description Crystal input connection (parallel mode crystal, C L = 14pF). 3.3V Power Supply. Voltage Input for VCXO Frequency Control. Ground for PLL Core. Clock Output. 3.3V Power Supply. Ground. Crystal connection. 47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 Rev 01/15/01 Page 2 PLL501-21/23 VCXO Clock Generator IC 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) Input Static Discharge Voltage Protection SYMBOL V DD VI VO TS TA TJ V SS -0.5 V SS -0.5 -65 0 MIN. MAX. 7 V DD +0.5 V DD +0.5 150 70 125 260 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. 2. DC Electrical Specifications PARAMETERS Supply Current, Dynamic, with Loaded Outputs Operating Voltage Output High Voltage Output Low Voltage Output High Voltage at CMOS level Operating Supply Current Short Circuit Current VIN, VCXO Control Voltage 0 SYMBOL I DD V DD V OH V OL V OHC I DD I OH = -12mA I LO = 12mA I OH = -4mA No Load V DD - 0.4 7 50 3.3 CONDITIONS f XTA = 13.5MHz Ouput load of 4pF 3.13 2.4 0.4 MIN. TYP. 20 3.47 MAX. UNITS mA V V V V mA mA V 47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 Rev 01/15/01 Page 3 PLL501-21/23 VCXO Clock Generator IC 3. AC Electrical Specifications PARAMETERS Input Crystal Frequency Input Crystal Accuracy Output Clock Rise Time Output Clock Fall Time Output Clock Duty Cycle Max Absolute Jitter Short Circuit Current CLK output pullability 4. Voltage Control Crystal Oscillator PARAMETERS PLL Stabilization Time * VCXO Stabilization Time * Output Frequency Synthesis Error tr tf SYMBOL CONDITIONS MIN. TYP. 13.5 MAX. 30 UNITS MHz ppm ns ns % ps mA ppm 0.8V ~ 2.0V 2.0V ~ 0.8V Measured @ 1.4V Short Term 0VVIN3.3V 100 45 50 100 50 1.5 1.5 55 SYMBOL T PLLSTB T VCXOSTB CONDITIONS From VCXO stable From power valid (Unless otherwise noted in Frequency Table) MIN. TYP. 500 10 MAX. UNITS us ms 30 ppm Crystal Resonator Frequency Crystal Loading Capacitance Crystal Resonator Motional Capacitance VCXO Tuning Range VCXO Tuning Characteristic f XTAL C L(xtal) C 1(xtal) Parallel Fundamental Mode V XTUNE =1.65V At cut 10 13.5 14 25 200 100 15 MHz pF fF ppm ppm/V f XTA = 13.5MHz; C L =14pF; C MOT =25fF Note: Parameters denoted with an asterisk ( * ) represent nominal characterization data and are not production tested to any specific limits. External Components The PLL501-21/23 requires a minimum number of external components for proper operation. A decoupling capacitor of 0.01F should be connected between VDD and GND on pin2 and 4, as close to the PLL501-21/23 as possible. A series termination resistor of 33 may be used for the clock output. The input crystal must be connected as close to the chip as possible. The input crystal should be a parallel mode, pullable, AT cut, 13.5MHz, with 14pF load capacitance and a C0/C1 ratio of maximum 250. Consult PhaseLink for recommended suppliers. 47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 Rev 01/15/01 Page 4 PLL501-21/23 VCXO Clock Generator IC PACKAGE INFORMATION 8 PIN Narrow SOIC ( mm ) SOIC Symbol A A1 B C D E H L e Min. 1.55 0.15 0.35 0.19 4.80 3.81 5.84 0.41 1.27 BSC Max. 1.73 0.18 0.49 0.25 4.98 3.99 6.20 0.89 A 1 B e A C L D E H 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 PLL501-21 S C PART NUMBER TEMPERATURATRE C=COMMERCIAL M=MILITARY I=INDUSTRAL S=SOIC PACKAGE TYPE 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 Rev 01/15/01 Page 5 |
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