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PL560-47QC Datasheet(PDF) 4 Page - PhaseLink Corporation |
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PL560-47QC Datasheet(HTML) 4 Page - PhaseLink Corporation |
4 / 15 page Analog Frequency Multiplier PL560-xx VCXO Family 47745 Fremont Blvd., Fremont, CA 94538 TEL (510) 492-0990, FAX (510) 492-0991 www.phaselink.com Rev.:02-09-07 Page 4 CRYSTAL SPECIFICATIONS AND BOARD LAYOUT CONSIDERATIONS BOARD LAYOUT CONSIDERATIONS To minimize parasitic effects, and improve performance: • Place the crystal as close as possible to the IC. • Make the board traces that are connected to the crystal pins symmetrical. • The board trace symmetry is important, as it reduces the negative parasitic effects to produce a clean frequency multiplication with low jitter. Parasitic effects reduce frequency pulling of the VCXO and increase jitter. CRYSTAL SPECIFICATIONS & TUNING PERFORMANCE CRYSTAL SPECIFICATIONS TUNING PERFORMANCE CL (xtal) ESR (RE) CRYSTAL TUNING (Typical) PART NUMBER CRYSTAL RESONATOR FREQUENCY (FXIN) MODE CONDI- TIONS TYP. Max. CRYSTAL FREQ (MHz) C0 C1 C0/C1 VC: 1.65V 0V VC: 1.65V 3.4V 155.52 3.0pF 12.2fF 245 -145 ppm +108 ppm PL560-08/09 PL560-68/69 75~200MHz Funda- mental At VCON = 1.65V 5pF 30 Ω 155.52 1.8pF 5.7fF 316 -134 ppm +87 ppm 30.72 2.8pF 12.4fF 228 -167ppm +176 ppm 30.72 4.5pF 19.1fF 236 -163 ppm +167 ppm 38.88 5.1pF 20.9fF 242 -131 ppm +98 ppm 38.88 5.3pF 25.6fF 207 -157 ppm +141 ppm PL560- 37/38/39 PL560- 47/48/49 30~80MHz Funda- mental At VCON = 1.65V 5pF 30 Ω 77.76 2.0pF 6.7fF 305 -92 ppm +110 ppm Note: Non specified parameters can be chosen as standard values from crystal suppliers. CL ratings larger than 5pF require a crystal frequency adjustment. Request detailed crystal specifications from PhaseLink. XTAL XTAL Ceramic SMD AFM IC XIN (Pin # 4) XOUT (Pin # 5) AFM IC XIN (Pin # 4) XOUT (Pin # 5) |
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