1

10

100

1,000

-100

-80

-60

-40

-20

0

f(MHz)

dBm

Fig. A8: Analog crosstalk results.

3- Analog Crosstalk

Figure A7 gives the measurement circuit for the

analog application. In usual frequency range of

analog signals (up to 100MHz) the effect on

disturbed line is less than -45 dBm (please see Fig.

A8).

Fig. A7: Analog crosstalk measurements.

SPECTRUM ANALYSER

Vout

50

Ω

TRACKING GENERATOR

Vg

Vin

50

Ω

TEST BOARD

+5V

DALC

208

C=100nF

Fig. A9: Measurement conditions.

As the DALC208SC6 is designed to protect high

speed data lines, it must ensure a good

transmission of operating signals. The attenuation

curve give such an information.

Fig. A10 shows that the DALC208SC6 is well

suitable for data line transmission up to 100 Mbit/s

while it works as a filter for undesirable signals as

GSM (900MHz).

1

10

100

1,000

-30

-20

-10

0

f(MHz)

dBm

Fig. A10: DALC206SC6 attenuation.

SPECTRUM ANALYSER

Vout

50

Ω

TRACKING GENERATOR

Vg

Vin

50

Ω

TEST BOARD

+5V

DALC

208

C=100nF

DALC208SC6

7/10