PLL520-28-29 PLL | Alldatasheet
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Technical content
Low Phase Noise VCXO (for 120-200MHz Fund Xtal) 47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 09/20/04 Page 1
FEATURES
120MHz to 200MHz Fundamental Mode Crystal. Output range: 120 – 200MHz (no PLL). Low Injection Power for crystal 50uW. Sub 0.5pS RMS phase jitter ( 12kHz to 20MHz ). PECL (PLL520-28) or LVDS output (PLL520-29). Integrated variable capacitors. Supports 2.5V or 3.3V-Power Supply. Available in 16-Pin (TSSOP or 3x3mm QFN).
DESCRIPTION
The PLL520-28/-29 are a family of VCXO IC’s specifically designed to pull high frequency fundamental crystals. They achieve very low current into the crystal resulting in better overall stability. Their internal varicaps allow an on chip frequency pulling, controlled by the VCON input. Their very low jitter makes them ideal for the most demanding timing requirements. BLOCK DIAGRAM PIN CONFIGURATION (Top View) OUTPUT ENABLE LOGICAL LEVELS Part # OE State 0 (Default) Output enabled PLL520-28 Tri-state Tri-state PLL520-29 1 (Default) Output enabled OE input: Logical states defined by PECL levels for PLL520-28 Logical states defined by CMOS levels for PLL520-29 PLL 520-2x VDD XIN XOUT N/C N/C OE VCON GND N/C N/C GND CLKC VDD CLKT N/C N/C XIN XOUT OE Q PLL520-28/-29 VCON Q Oscillator Amplifier integrated varicaps P520-2x GND VDD CLKT CLKC VDD N/C N/C VDD XOUT XIN N/C OE GND VCON GND GND
Low Phase Noise VCXO (for 120-200MHz Fund Xtal) 47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 09/20/04 Page 2 PIN DESCRIPTIONS Name TSSOP Pin number 3x3mm QFN Pin number Type I Crystal input. See Crystal Specifications on page 2. XOUT I Crystal output. See Crystal Specifications on page 2. OE I Output enable pin. See Output Enable Logic Levels on page 1. VCON I Voltage control input. GND 8, 14 2,3,4,8 P Ground. CLKT O True output PECL (PLL520-28) or LVDS (PLL520-29) CLKC O Complementary output PECL (PLL520-28) or LVDS (PLL520-29). N/C 4,5,9,10,15,16 9,10,15 Not connected. VDD 1, 12 6,11,12 P +3.3V power supply. ELECTRICAL SPECIFICATIONS 1. Absolute Maximum Ratings PARAMETERS SYMBOL MIN. MAX. UNITS Supply Voltage VDD 4.6 V Input Voltage, dc VI -0.5 VDD+0.5 V Output Voltage, dc VO -0.5 VDD+0.5 V Storage Temperature TS -65 150 Ambient Operating Temperature* TA -40 Junction Temperature TJ 125 Lead Temperature (soldering, 10s) 260 ESD Protection, Human Body Model 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. Crystal Specifications PARAMETERS SYMBOL CONDITIONS MIN. MAX. UNITS CX+ Built-in Capacitance CX- Inter-electrode capacitance 120MHz to 200MHz (VDD=3.3V) pF C0/C1 ratio (gamma) γ 300 Oscillation Frequency OF Fund. 120 200 MHz
Low Phase Noise VCXO (for 120-200MHz Fund Xtal) 47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 09/20/04 Page 3 3. Voltage Control Crystal Oscillator (3.3V) PARAMETERS SYMBOL CONDITIONS MIN. TYP. MAX. UNITS VCXO Stabilization Time * TVCXOSTB From power valid ms VCXO Tuning Range FXIN = 100 – 200MHz; XTAL C0/C1 < 250 0V ≤ VCON ≤ 3.3V 200* ppm CLK output pullability VCON=1.65V, ±1.65V ±100* ppm On-chip Varicaps control range VCON = 0 to 3.3V 4 – 18* pF Linearity 10* VCXO Tuning Characteristic ppm/V VCON input impedance kΩ VCON modulation BW 0V ≤ VCON ≤ 3.3V, -3dB kHz Note: Parameters denoted with an asterisk (*) represent nominal characterization data and are not production tested to any specific limits. 4. General Electrical Specifications PARAMETERS SYMBOL CONDITIONS MIN. TYP. MAX. UNITS Supply Current (Loaded Outputs) IDD PECL/LVDS mA Operating Voltage VDD 2.97 3.63 V Output Clock Duty Cycle @ 1.25V (LVDS) @ VDD – 1.3V (PECL) Short Circuit Current ±50 mA 5. Jitter Specifications PARAMETERS CONDITIONS MIN. TYP. MAX. UNITS Period jitter RMS 2.5 Period jitter peak-to-peak At 155.52MHz, with capacitive decoupling between VDD and GND. 18.5 ps Accumulated jitter RMS 2.5 Accumulated jitter peak-to-peak At 155.52MHz, with capacitive decoupling between VDD and GND. Over 10,000 cycles. ps Integrated jitter RMS at 155MHz Integrated 12 kHz to 20 MHz 0.3 ps 6. Phase Noise Specifications PARAMETERS FREQUENCY @10Hz @100Hz @1kHz @10kHz @100kHz UNITS Phase Noise relative to carrier 155.52MHz -75 -95 -125 -140 -145 dBc/Hz Note: Phase Noise measured at VCON = 0V
Low Phase Noise VCXO (for 120-200MHz Fund Xtal) 47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 09/20/04 Page 4 7. LVDS Electrical Characteristics PARAMETERS SYMBOL CONDITIONS MIN. TYP. MAX. UNITS Output Differential Voltage VOD 247 355 454 mV VDD Magnitude Change ∆VOD -50 mV Output High Voltage VOH 1.4 1.6 V Output Low Voltage VOL 0.9 1.1 V Offset Voltage VOS 1.125 1.2 1.375 V Offset Magnitude Change ∆VOS RL = 100 Ω (see figure) mV Power-off Leakage IOXD Vout = VDD or GND VDD = 0V ±10 uA Output Short Circuit Current IOSD -5.7 mA 8. LVDS Switching Characteristics PARAMETERS SYMBOL CONDITIONS MIN. TYP. MAX. UNITS Differential Clock Rise Time tr 0.2 0.7 1.0 ns Differential Clock Fall Time tf RL = 100 Ω CL = 10 pF (see figure) 0.2 0.7 1.0 ns OUT OUT VOD VOS 50Ω 50Ω OUT VDIFF RL = 100Ω CL = 10pF CL = 10pF LVDS Switching Test Circuit LVDS Levels Test Circuit LVDS Transistion Time Waveform OUT OUT OUT 0V (Differential) 20% 80% 20% 80% tR tF VDIFF
Low Phase Noise VCXO (for 120-200MHz Fund Xtal) 47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 09/20/04 Page 5 9. PECL Electrical Characteristics PARAMETERS SYMBOL CONDITIONS MIN. MAX. UNITS Output High Voltage VOH VDD – 1.025 V Output Low Voltage VOL RL = 50 Ω to (VDD – 2V) (see figure) VDD – 1.620 V 10. PECL Switching Characteristics PARAMETERS SYMBOL CONDITIONS MIN. TYP. MAX. UNITS Clock Rise Time tr @20/80% - PECL 0.6 1.5 ns Clock Fall Time tf @80/20% - PECL 0.5 1.5 ns OUT OUT 50Ω 50Ω PECL Levels Test Circuit PECL Transistion Time Waveform OUT OUT 50% 20% 80% tR tF VDD DUTY CYCLE 45 - 55% 55 - 45% 50% OUT OUT tSKEW PECL Output Skew 2.0V
Low Phase Noise VCXO (for 120-200MHz Fund Xtal) 47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 09/20/04 Page 6
PACKAGE INFORMATION
C L A E H D e B
16 PIN TSSOP ( mm )
Min. Max. A 1.20 0.05 0.15 B 0.19 0.30 C 0.09 0.20 D 4.90 5.10 E 4.30 4.50 H
6.40 BSC
L 0.45 0.75 e
0.65 BSC
Low Phase Noise VCXO (for 120-200MHz Fund Xtal) 47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 09/20/04 Page 7
ORDERING INFORMATION
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. 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 PLL520-2x O C Order Number Marking Package Option PLL520-28OC P520-28OC TSSOP - Tube PLL520-28OC-R P520-28OC TSSOP - Tape & Reel PLL520-28QC P520-28QC QFN - Tube PLL520-28QC-R P520-28QC QFN - Tape & Reel PLL520-29OC P520-29OC TSSOP - Tube PLL520-29OC-R P520-29OC TSSOP - Tape & Reel PLL520-29QC P520-29QC QFN - Tube PLL520-29QC-R P520-29QC QFN - Tape & Reel PART NUMBER TEMPERATURE C=COMMERCIAL I=INDUSTRAL PACKAGE TYPE O=TSSOP Q=QFN