DALC208(1999) Просмотр технического описания (PDF) - STMicroelectronics

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Компоненты Описание

производитель

DALC208
(Rev.:1999)

LOW CAPACITANCE DIODE ARRAY

STMicroelectronics 

3- Analog Crosstalk

Fig. A7: Analog crosstalk measurements.

TRACKING GENERATOR

50Ω

+5V

Vg

Vin

TEST BOARD

DALC

208

C=100nF

DALC208SC6

SPECTRUM ANALYSER

50Ω

Vout

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. A8: Analog crosstalk results.

dBm

0

-20

-40

-60

Fig. A9: Measurement conditions.

TRACKING GENERATOR

50Ω

+5V

Vg

Vin

TEST BOARD

DALC

208

C=100nF

SPECTRUM ANALYSER

50Ω

Vout

-80

-100

1

10

100

f(MHz)

1,000

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: DALC206SC6 attenuation.

dBm

0

-10

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).

-20

-30

1

10

100

f(MHz)

1,000

7/10

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