APPENDIX A: TEST CONFIGURATIONS

S0248-01

LVDS

LVDS

100 W

S0249-01

VCC – 2V

LVPECL

LVPECL

50 W

50 W

S0250-01

LVDS

50 W

PhaseNoise

Analyzer

S0251-01

LVPECL

50 W

PhaseNoise

Analyzer

150 W

150 W

CDCE421

Test setups are used to characterize the CDCE421 device in ac and dc terminations. Figure 8 through Figure 11

illustrate all four setups used to terminate the clock signal driven by the device under test.

Figure 8. LVDS DC Termination Test Configuration

Figure 9. LVPECL DC Termination Test Configuration

Figure 10. LVDS AC Termination Test Configuration

Figure 11. LVPECL AC Termination Test Configuration

16

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