14

PI3USB411

3.3V, USB 2.0 High-Speed Signal Switch

with Low THD Channels for Audio Signals

PS8817A

06/06/06

Figure 18: High Fidelity Audio Signal Test Setup.

In Figure 18, the test flow is to send a sine wave signal from 30Hz to 30KHz from the Function Generator (HP8116A) to the

Pericom Test Board. Pericom took measurements on three test points using a Tektronix Scope (TDS694C). The three test

points were TP2 (Channel 1 on Scope), TP3 (Channel 2 on Scope), and TP4 (Channel 3 on Scope). R1 represents the termina-

Figure 19: See Figure 18 for test setup. R1=12K and the sine wave on the left plot is 30kHz, while the sine wave on the right is

30Hz. Channel 1 (black)=TP2, Channel 2 (green)=TP3, Channel 3(red)=TP4

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