Test Circuit
Note:
Shown for testing CLKIN to CLK1 in the differential mode.
L1, L2, L3 and L4 = equal length 50Ω impedance lines.
All unused inputs and outputs are loaded with 50Ω in parallel with ≤3 pF to GND.
Scope should have 50Ω input terminator internally.
FIGURE 1. AC Test Circuit
Switching Waveforms
FIGURE 2. Propagation Delay, SEL to Outputs
FIGURE 3. Propagation Delay, CLKIN/CLKIN to Outputs
FIGURE 4. Transition Times
5
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