Rainbow-electronics MAX3679A Bedienungsanleitung PDF herunterladen (Seite 4)

MAX3679A

+3.3V, Low-Jitter Crystal to LVPECL

Clock Generator

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ELECTRICAL CHARACTERISTICS (continued)

= +3.0V to +3.6V, T

= -40°C to +85°C, unless otherwise noted. Typical values are at V

= +3.3V, T

= +25°C, unless other-

wise noted.) (Notes 1, 2, and 3)

MAX3679A

QA_C

36Ω 499Ω

= 50Ω

OSCILLOSCOPE

4.7pF

0.1μF

50Ω

Figure 1. LVCMOS Output Measurement Setup

Note 2: Guaranteed up to 320MHz for LVPECL output.

Note 3: Guaranteed up to 160MHz for LVCMOS output.

Note 4: All outputs enabled and unloaded. IN_SEL set high.

Note 5: Measured with crystal or AC-coupled, 50% duty-cycle signal on REF_IN.

Note 6: Measured using setup shown in Figure 1 with V

= 3.3V ±5%.

Note 7: Measured with crystal source.

Note 8: Total TIE including random and deterministic jitter. Measured with Agilent DSO81304A 40GS/s real-time oscilloscope

using 2M sample record length.

Note 9: Measured with 40mV

P-P

, 100kHz sinusoidal signal on the supply.

Note 10: Measured at 156.25MHz output.

Note 11: Measured with 25MHz crystal or 25MHz reference clock at LVCMOS input with a slew rate of 0.5V/ns or greater.

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Rainbow-electronics MAX3679A Bedienungsanleitung Seite 4