VCXO Clock Generator On-chip tunable voltage-controlled crystal o
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PLL501-21/23
VCXO Clock Generator
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 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 level.
CONFIGURATION
XOUT
Table Crystal Output Frequencies
DEVICE PLL501-21 (MHz) 13.5 13.5 (MHz)
PLL501-XX
DESCRIPTIONS
PLL501-21/23 monolithic Jitter, high performance CMOS clock generator circuitry that implements voltage-controlled crystal oscillator when external resonator (nominally 13.5MHz) attached. VCXO allows device frequencies precisely adjusted matching requirements. This product ideal Set-Top multimedia synthesizer applications. BLOCK DIAGRAM
PLL501-23
Note: Contact PhaseLink custom Frequencies
VCXO
XOUT
Output Buffer
47745 Fremont Blvd., Fremont, California 94538 (510) 492-0990 (510) 492-0991
01/15/01 Page
PLL501-21/23
VCXO Clock Generator
DESCRIPTIONS
Name XOUT Number Type Description Crystal input connection (parallel mode crystal, 14pF). 3.3V Power Supply. Voltage Input VCXO Frequency Control. Ground Core. Clock Output. 3.3V Power Supply. Ground. Crystal connection.
47745 Fremont Blvd., Fremont, California 94538 (510) 492-0990 (510) 492-0991
01/15/01 Page
PLL501-21/23
VCXO Clock Generator
ELECTRICAL SPECIFICATIONS
Absolute Maximum Ratings PARAMETERS Supply Voltage Input Voltage, Output Voltage, Storage Temperature Ambient Operating Temperature Junction Temperature Lead Temperature (soldering, 10s) Input Static Discharge Voltage Protection SYMBOL MIN. MAX. 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.
Electrical Specifications PARAMETERS Supply Current, Dynamic, with Loaded Outputs Operating Voltage Output High Voltage Output Voltage Output High Voltage CMOS level Operating Supply Current Short Circuit Current VIN, VCXO Control Voltage SYMBOL -12mA 12mA -4mA Load CONDITIONS 13.5MHz Ouput load 3.13 MIN. TYP. 3.47 MAX. UNITS
47745 Fremont Blvd., Fremont, California 94538 (510) 492-0990 (510) 492-0991
01/15/01 Page
PLL501-21/23
VCXO Clock Generator
Electrical Specifications PARAMETERS Input Crystal Frequency Input Crystal Accuracy Output Clock Rise Time Output Clock Fall Time Output Clock Duty Cycle Absolute Jitter Short Circuit Current output pullability Voltage Control Crystal Oscillator PARAMETERS
Stabilization Time VCXO Stabilization Time Output Frequency Synthesis Error
SYMBOL
CONDITIONS
MIN.
TYP. 13.5
MAX.
UNITS
0.8V 2.0V 2.0V 0.8V Measured 1.4V Short Term 0VVIN3.3V ±100
SYMBOL
PLLSTB VCXOSTB
CONDITIONS
From VCXO stable From power valid (Unless otherwise noted Frequency Table)
MIN.
TYP.
MAX.
UNITS
Crystal Resonator Frequency Crystal Loading Capacitance Crystal Resonator Motional Capacitance VCXO Tuning Range VCXO Tuning Characteristic
XTAL L(xtal) 1(xtal)
Parallel Fundamental Mode XTUNE =1.65V
13.5
ppm/V
13.5MHz; =14pF; =25fF
Note: Parameters denoted with asterisk represent nominal characterization data production tested specific limits.
External Components
PLL501-21/23 requires minimum number external components proper operation. decoupling capacitor 0.01µF should connected between pin2 close PLL501-21/23 possible. series termination resistor used clock output. input crystal must connected close chip possible. input crystal should parallel mode, pullable, cut, 13.5MHz, with 14pF load capacitance C0/C1 ratio maximum 250. Consult PhaseLink recommended suppliers.
47745 Fremont Blvd., Fremont, California 94538 (510) 492-0990 (510) 492-0991
01/15/01 Page
PLL501-21/23
VCXO Clock Generator
PACKAGE INFORMATION
Narrow SOIC
SOIC Symbol Min. 1.55 0.15 0.35 0.19 4.80 3.81 5.84 0.41 1.27 Max. 1.73 0.18 0.49 0.25 4.98 3.99 6.20 0.89
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
PLL501-21
PART NUMBER TEMPERATURATRE
C=COMMERCIAL M=MILITARY
I=INDUSTRAL
S=SOIC
PACKAGE TYPE
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
01/15/01 Page
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