USBLC6-4

Technical information

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Figure 12.

Analog crosstalk measurements

Figure 12. shows the measurement circuit for the analog application. In usual frequency

range of analog signals (up to 240 MHz) the effect on disturbed line is less than -55 db ( see

Figure 13.).

Figure 13.

Analog crosstalk results

As the USBLC6-4SC6 is designed to protect high speed data lines, it must ensure a good

transmission of operating signals. The frequency response (Figure 5.) gives attenuation

information and shows that the USBLC6-4SC6 is well suitable for data line transmission up

to 480 Mbit/s while it works as a filter for undesirable signals like GSM (900 MHz)

frequencies, for instance.

NETWORK ANALYSER

PORT 2

NETWORK ANALYSER

PORT 1

TEST BOARD

Vbus

100.0k

1.0M

10.0M

100.0M

1.0G

- 120.00

- 90.00

- 60.00

- 30.00

0.00

dB

f/Hz

100.0k

1.0M

10.0M

100.0M

1.0G

- 120.00

- 90.00

- 60.00

- 30.00

0.00

dB

F (Hz)