7

FN6403.0

December 5, 2006

Repeat test for all switches.

FIGURE 5. CAPACITANCE TEST CIRCUIT

Signal direction through switch is reversed, worst case

values are recorded. Repeat test for all switches

FIGURE 6. AUDIO CROSSTALK TEST CIRCUIT

FIGURE 7A. MEASUREMENT POINTS

FIGURE 7B. TEST CIRCUIT

FIGURE 7. SKEW TEST

C

GND

NCx or NOx

COMx

VBUS

IMPEDANCE

ANALYZER

CTRL

0V or Float

ANALYZER

C

NCx

SIGNAL

GENERATOR

GND

VBUS

COMx

75

Ω

N.C.

COMx

R or L

CTRL

DIN+

DIN-

OUT+

OUT-

50%

50%

90%

10%

10%

10%

10%

90%

90%

50%

90%

50%

OUT+

COM2

NO1

GND

C

NO2

COM1

OUT-

DIN+

DIN-

|tro - tri| Delay Due to Switch for Rising Input and Rising Output Signals.

|tfo - tfi| Delay Due to Switch for Falling Input and Falling Output Signals

|tskew_0| Change in Skew through the Switch for Output Signals.

|tskew_i| Change in Skew through the Switch for Input Signals.

15.8

Ω

15.8

Ω

143

Ω

143

Ω

45

Ω

45

Ω

CTRL

VBUS

ISL54207