ISL23318_14 Datasheet, PDF (12/19 Pages) Intersil Corporation – Single, 128-taps Low Voltage Digitally Controlled Potentiometer (XDCP™)

ISL23318
Typical Performance Curves (Continued)
20
150
140
15
130
10
120
5
110
0
16
32
48
64
80
96
112 128
TAP POSITION (DECIMAL)
FIGURE 17. 100k TCv vs TAP POSITION
100
16
32
48
64
80
96
112
128
TAP POSITION (DECIMAL)
FIGURE 18. 100k TCr vs TAP POSITION
SCL CLOCK
1V/DIV
RW PIN
10mV/DIV
1µs/DIV
FIGURE 19. WIPER DIGITAL FEED-THROUGH
1V/DIV
1µs/DIV
WIPER
20mV/DIV
5µs/DIV
FIGURE 20. WIPER TRANSITION GLITCH
1V/DIV
0.1s/DIV
VRH = VCC
SCL 9TH CLOCK OF THE
DATA BYTE (ACK)
FIGURE 21. WIPER LARGE SIGNAL SETTLING TIME
12
VRW
FIGURE 22. POWER-ON START-UP IN VOLTAGE DIVIDER MODE
FN7887.0
July 26, 2011