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PLL502-02HSIR Datasheet(PDF) 3 Page - PhaseLink Corporation |
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PLL502-02HSIR Datasheet(HTML) 3 Page - PhaseLink Corporation |
3 / 4 page PLL502-02 Low Phase Noise VCXO (24MHz to 50MHz) 47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 12/14/05 Page 3 3. AC Electrical Specifications PARAMETERS SYMBOL CONDITIONS MIN. TYP. MAX. UNITS Input Crystal Frequency 12 25 MHz Output Clock Rise/Fall Time (Standard Drive) 0.3V ~ 3.0V with 15 pF load 2.4 Output Clock Rise/Fall Time (High Drive) 0.3V ~ 3.0V with 15 pF load 1.2 ns Output Clock Duty Cycle Measured @ 50% VDD 45 50 55 % 4. Voltage Control Crystal Oscillator PARAMETERS SYMBOL CONDITIONS MIN. TYP. MAX. UNITS VCXO Stabilization Time * TVCXOSTB From power valid 10 ms VCXO Tuning Range FXIN = 12 – 25MHz; XTAL C0/C1 < 250 0V ≤ VCON ≤ 3.3V 500 ppm CLK output pullability VCON=1.65V, ±1.65V ±200 ppm VCXO Tuning Characteristic 165 ppm/V Pull range linearity 10 % VCON pin input impedance 2000 k Ω VCON modulation BW 0V ≤ VCON ≤ 3.3V, -3dB 25 kHz Note: Parameters denoted with an asterisk (*) represent nominal characterization data and are not production tested to any specific limits. 5. Jitter and Phase Noise Specification PARAMETERS CONDITIONS MIN. TYP. MAX. UNITS RMS Period Jitter (1 sigma – 1000 samples) at 44MHz, with capacitive decoup- ling between VDD and GND. 3 ps Phase Noise relative to carrier 44MHz @100Hz offset -100 dBc/Hz Phase Noise relative to carrier 44MHz @1kHz offset -123 dBc/Hz Phase Noise relative to carrier 44MHz @10kHz offset -130 dBc/Hz Phase Noise relative to carrier 44MHz @100kHz offset -125 dBc/Hz Phase Noise relative to carrier 44MHz @1MHz offset -125 dBc/Hz 6. Crystal Specifications PARAMETERS SYMBOL MIN. TYP. MAX. UNITS Crystal Resonator Frequency FXIN 12 25 MHz Crystal Loading Capacitance Rating CL (xtal) 9.5 pF C0/C1 250 - ESR RS 30 Ω Note: Crystal Loading rating: 9.5pF is the loading the crystal sees from the VCXO chip at VCON = 1.65V. It is assumed that the crystal will be at nominal frequency at this load. If the crystal requires more load to be at nominal frequency, the additional load must be added externally. This however may reduce the pull range. |
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