7.11 Crosstalk

Crosstalk is defined as the ratio of the signal at the drain pin (D) of a different channel, when a signal is applied

at the source pin (Sx) of an on-channel. Figure 7-11 shows the setup used to measure, and the equation used to

calculate crosstalk.

GND

S1A

S2A

50

50

Network Analyzer

0.1 µF

0.1 µF

50

D

50

SxA / SxB / Dx

Figure 7-11. Crosstalk Measurement Setup

7.12 Bandwidth

Bandwidth is defined as the range of frequencies that are attenuated by less than 3 dB when the input is applied

to the source pin (Sx) of an on-channel, and the output is measured at the drain pin (D) of the device. Figure

7-12 shows the setup used to measure bandwidth.

GND

S

D

50

50

Network Analyzer

0.1 µF

0.1 µF

50

SxA / SxB / Dx

Figure 7-12. Bandwidth Measurement Setup

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SCDS417 – MARCH 2022

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