GND

NETWORK

ANALYZER

V

OUT

S

D

50

V

SIG

R

L

50

SxA / SxB

R

L

50

V

S

V

DD

0.1 µF

Figure 14-13. Off Isolation Measurement Setup

Off Isolation = 20 × Log  VOUTVS

(1)

14.14 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 14-14 shows the setup used to measure, and the equation used

to calculate crosstalk.

NETWORK

ANALYZER

VDD

0.1 µF

VDD

GND

SA

VSIG = 200 mVpp

VBIAS = VDD / 2

50

VOUT

RL

D

50

SB

VS

50

RL

Figure 14-14. Crosstalk Measurement Setup

Cℎannel−to−Cℎannel Crosstalk = 20 × Log  VOUTVS

(2)

TMUX4821, TMUX4819

SCDS487A – OCTOBER 2025 – REVISED DECEMBER 2025

www.ti.com

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