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CDCM61004 Fiches technique(PDF) 7 Page - Texas Instruments |
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CDCM61004 Fiches technique(HTML) 7 Page - Texas Instruments |
7 / 35 page CDCM61004 www.ti.com SCAS871E – FEBRUARY 2009 – REVISED JULY 2010 TYPICAL OUTPUT PHASE NOISE CHARACTERISTICS (continued) Over operating free-air temperature range (unless otherwise noted). CDCM61004 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT 625-MHz LVDS Output(3) (see Figure 14) phn100 Phase noise at 100-Hz offset –88 dBc/Hz phn1k Phase noise at 1-kHz offset –102 dBc/Hz phn10k Phase noise at 10-kHz offset –109 dBc/Hz phn100k Phase noise at 100-kHz offset –112 dBc/Hz phn1M Phase noise at 1-MHz offset –129 dBc/Hz phn10M Phase noise at 10-MHz offset –146 dBc/Hz phn20M Phase noise at 20-MHz offset –146 dBc/Hz tRJIT RMS phase jitter from 10 kHz to 20 MHz 510 fs, RMS tPJIT Total period jitter 27 ps, PP Start-up time, power supply ramp time of 1 ms, tSTARTUP 2.25 ms final frequency accuracy of ±10 ppm (3) Figure 14 shows test setup and uses 25-MHz quartz crystal in, VCC = 3.3 V, and TA = +25°C. TYPICAL OUTPUT JITTER CHARACTERISTICS(1) OUTPUT LVCMOS OUTPUT LVPECL OUTPUT LVDS OUTPUT FREQUENCY (MHz) INPUT (MHz) tRJIT (fs, RMS) tPJIT (psPP) tRJIT (fs, RMS) tPJIT (psPP) tRJIT (fs, RMS) tPJIT (psPP) 62.5 25 592 32.9 611 20.7 667 28.4 75 25 518 27.5 533 19.4 572 25.7 77.76 24.8832 506 29.2 526 20.9 567 26.9 100 25 507 24.5 510 20.7 533 26.5 106.25 26.5625 535 23.5 524 20.2 553 26.5 125 25 557 39.6 556 21.4 570 27.1 150 25 518 38.4 493 18.9 515 26.2 155.52 24.8832 498 36.9 486 19.8 502 26.7 156.25 25 510 37.7 503 20.7 518 26.5 159.375 26.5625 535 37.4 510 19.9 534 26.3 187.5 25 506 32.8 506 20.3 509 25.5 200 25 491 23.3 492 30 499 34.9 212.5 26.5625 520 47.8 509 30.8 530 37.3 250 25 544 27.4 541 21.4 550 27.5 311.04 24.8832 481 20.5 496 24.7 312.5 25 501 20.8 508 25.8 622.08 24.8832 492 27.2 500 27.2 625 25 515 26.9 509 27 (1) Figure 10, Figure 12, and Figure 14 show LVCMOS, LVPECL, and LVDS test setups (respectively) using appropriate quartz crystal in, VCC = 3.3 V, and TA = +25°C. Copyright © 2009–2010, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Link(s): CDCM61004 |
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