DALC208SC6 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'DALC208SC6' PDF : 10 Pages View PDF
Crosstalk behavior
DALC208
Note:
The measurements have been done in the worst case i.e. on two adjacent cells (I/O1 and
I/O4).
3.3
Analog crosstalk
Figure 16. Analog crosstalk measurements
TRACKING GENERATOR
50Ω
+5V
Vg
Vin
TEST BOARD
DALC
208
C=100nF
SPECTRUM ANALYSER
50Ω
Vout
Figure 16 shows the measurement circuit for the analog application. For the usual frequency
range of analog signals (up to 100MHz) the effect on disturbed line is less than -45 dBm.
See Figure 17.
Figure 17. Analog crosstalk results
dBm
0
Figure 18. DALC208SC6 attenuation
dBm
0
-20
-10
-40
-60
-20
-80
-100
1
10
100
f(MHz)
1,000
-30
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.
Figure 18 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 such as GSM carrier (900 MHz).
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