TMUX7411F datasheet(19/30 Pages) TI

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8.6 Break-Before-Make Delay

The break-before-make delay is a safety feature of the TMUX7413F switch. The TMUX7413F's ON switches first

break the connection before the OFF switches make connection. The time delay between the break and the

make is known as break-before-make delay. Figure 8-6 shows the setup used to measure break-before-make

delay, denoted by the symbol tBBM.

Output 1

SEL1,

SEL2

GND

VINx

3 V

VINx

0 V

50%

0.9 VS

Output 2

tBBM1

tBBM2

0.9 VS

Output 1

0.9 VS

0 V

tBBM= min (tBBM1, tBBM2)

Output 2

VDD

VSS

VDD

VSS

GND

0.1 µF

GND

0.1 µF

Figure 8-6. Break-Before-Make Delay Measurement Setup

8.7 Turn-On and Turn-Off Time

Turn-on time (tON) is defined as the time taken by the output of the TMUX7411F, TMUX7412F, and TMUX7413F

to rise to a 90% final value after the SELx signal has risen (for NC switches) or fallen (for NO switches) to a 50%

final value. Turn off time (tOFF) is defined as the time taken by the output of the TMUX7411F, TMUX7412F, and

TMUX7413F to fall to a 10% initial value after the SELx signal has fallen (for NC switches) or risen (for NO

switches) to a 50% initial value. Figure 8-7 shows the setup used to measure tON and tOFF.

3 V

VSEL

0 V

50%

tON

tOFF

0.1 VS

0.9 VS

Output

tr < 20 ns

tf < 20 ns

GND

VSEL

GND

VDD

VSS

VDD

VSS

GND

0.1 µF

GND

0.1 µF

GND

SELx

Output

Figure 8-7. Enable Delay Measurement Setup

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TMUX7411F, TMUX7412F, TMUX7413F

SCDS404 – MARCH 2021

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