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XRK69772IR Datasheet(PDF) 6 Page - Exar Corporation |
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XRK69772IR Datasheet(HTML) 6 Page - Exar Corporation |
6 / 12 page XRK69772 PRELIMINARY 6 1:12 LVCMOS PLL CLOCK GENERATOR REV. P1.0.0 NOTES: a. PLL locked, except when configured in bypass mode. b. t(Ø)[s] = t(Ø)[°] ÷ (fref x 360°) c. Not including Qsync output d. T is the output period. TABLE 5: AC CHARACTERISTICS (CON’T) (VDD = 3.3V +/- 5%) SYMBOL CHARACTERISTICS CONDITION MIN TYP MAX UNIT tPLZ, tPHZ Output Disable Time 8 ns tPZL, tPZH Output Enable Time 8 ns tJIT(CC) Cycle-to-Cycle Jitter All outputs in same divider configuration 150 200 ps tJIT(PER) Period Jitter All outputs in same divider configuration 150 ps tJIT(I/O)RMS I/O Jitter (RMS) VCO @ 400MHz ÷4 feedback ÷6 feedback ÷8 feedback ÷10 feedback ÷12 feedback ÷16 feedback ÷20 feedback ÷24 feedback ÷32 feedback ÷40 feedback 11 86 13 88 16 19 21 22 27 30 ps ps ps ps ps ps ps ps ps ps BW PLL closed loop bandwidth ÷4 feedback ÷6 feedback ÷8 feedback ÷10 feedback ÷12 feedback ÷16 feedback ÷20 feedback ÷24 feedback ÷32 feedback ÷40 feedback 1.20-3.5 0.70-2.50 0.50-1.80 0.45-1.20 0.30-1.00 0.25-0.70 0.20-0.55 0.17-0.40 0.12-0.30 0.11-0.28 MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz tLOCK Max PLL Lock Time 10 ns FIGURE 3. TEST LOAD V TT Z = 50 Ω Transmission Line 50 Ω |
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