參數(shù)資料
型號(hào): DALC208
廠商: 意法半導(dǎo)體
英文描述: LOW CAPACITANCE DIODE ARRAY
中文描述: 低電容二極管陣列
文件頁數(shù): 6/10頁
文件大?。?/td> 164K
代理商: DALC208
CROSSTALK BEHAVIOR
1- Crosstalk phenomena
The crosstalk phenomena are due to the coupling
between 2 lines. The coupling factor (
β
12 or
β
21)
increases when the gap across lines decreases,
particularly in silicon dice. In the example above
the expected signal on load R
L2
is
α
2
V
G2
, in fact
the real voltage at this point has got an extra value
β
21
V
G1
. This part of the V
G1
signal represents the
effect of the crosstalk phenomenon of the line 1 on
the line 2. This phenomenon has to be taken into
account when the drivers impose fast digital data
or high frequency analog signals in the disturbing
line. The perturbed line will be more affected if it
works with low voltage signal or high load
impedance (few k
). The following chapters give
the value of both digital and analog crosstalk.
2- Digital Crosstalk
Figure A5 shows the measurement circuit used to
quantify the crosstalk effect in a classical digital
application.
Figure A6 shows that in such a condition: signal
from 0V to 5V and a rise time of 5 ns, the impact on
the disturbed line is less than 100mV peak to peak.
No data disturbance was noted on the concerned
line. The same results were obtained with falling
edges.
Note:
The measurements have been done in the worst case i.e. on
two adjacent cells (I/O1 & I/O4).
Line 1
Line 2
V
G1
V
G2
R
G1
R
G2
DRIVERS
R
L1
R
L2
RECEIVERS
α
β
+
1
12
V
G1
V
G2
α
β
+
2
21
V
G2
V
G1
Fig. A4:
Crosstalk phenomena.
DALC208SC6
100nF
+5V
Line 1
Line 2
V
G1
β
21
V
G1
+5V
+5V
74HC04
+5V
Square
Pulse
Generator
5KHz
74HC04
Fig. A5:
Digital crosstalk measurements.
Fig. A6:
Digital crosstalk results.
DALC208SC6
6/10
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DALC208SC6 Switch Mode Power Supply; Output Power:120W; No. of Outputs:1; Output 1 VDC +:24VDC; Output Current 1:5A; Power Supply Mounting:Chassis; Leaded Process Compatible:Yes; Output Current:5A; Output Power Max:120W; Output Voltage:24VDC RoHS Compliant: Yes
DAMB5111 Analog IC
DAP08 DIN PLUG ASSY TYPE
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