MAX4947 Maxim, MAX4947 Datasheet - Page 9

• Manufacturer Part Number: MAX4947
• Description: The MAX4947/MAX4948 analog switches operate from a single +1
• Manufacturer: Maxim

Figure 2. Break-Before-Make-Interval
Figure 3. Input/Output Skew Timing Diagram
MAX4947/
MAX4948
LOGIC
INPUT
V
N_
|t
|t
|t
|t
fo -
skew_o
skew_i
ro -
TxD+
TxD-
t
t
fi
ri
|
|
|
|
DELAY DUE TO SWITCH FOR RISING INPUT AND RISING OUTPUT SIGNALS.
CHANGE IN SKEW THROUGH THE SWITCH FOR INPUT SIGNALS.
DELAY DUE TO SWITCH FOR FALLING INPUT AND FALLING OUTPUT SIGNALS.
CHANGE IN SKEW THROUGH THE SWITCH FOR OUTPUT SIGNALS.
_______________________________________________________________________________________
C
L
NC_
NO_
CB_
INCLUDES FIXTURE AND STRAY CAPACITANCE.
R
C
s
L
= 39Ω
= 50pF
GND
R
V
R
V
s
CC
s
CC
COM_
A+
A-
•
•
•
•
•
•
•
R
L
Timing Circuits/Timing Diagrams (continued)
B+
B-
V
OUT
C
C
L
L
C
L
OUTPUT B+
OUTPUT B-
INPUT A+
INPUT A-
Hex SPDT Data Switch
LOGIC
INPUT
V
OUT
10%
90%
90%
10%
V
0V
CC
t
t
t
t
ri
fi
ro
50%
fo
50%
50%
50%
50%
t
90%
10%
t
skew_i
90%
skew_o
10%
t
BBM
0.9 x V
OUT
9