ISL23345 Datasheet, PDF (12/19 Pages) Intersil Corporation – Quad, 256 Tap, Low Voltage Digitally Controlled Potentiometer (XDCP™)

ISL23345
Typical Performance Curves (Continued)
800
200
600
150
400
100
200
50
0
15
63
111
159
207
255
TAP POSITION (DECIMAL)
FIGURE 15. 10kΩ TCr vs TAP POSITION
0
15
63
111
159
207
255
TAP POSITION (DECIMAL)
FIGURE 16. 50kΩ TCr vs TAP POSITION, V_CC = 3.3V
40
30
20
10
0
15
63
111
159
207
255
TAP POSITION (DECIMAL)
FIGURE 17. 100kΩ TCv vs TAP POSITION, V_CC = 3.3V
SCL CLOCK
120
90
60
30
0
15
63
111
159
207
255
TAP POSITION (DECIMAL)
FIGURE 18. 100kΩ TCr vs TAP POSITION, V_CC = 3.3V
CH1: 20mV/DIV, 2µs/DIV
CH2: 2V/DIV, 2µs/DIV
WIPER
RW PIN
CH1: 1V/DIV, 1µs/DIV
CH2: 10mV/DIV, 1µs/DIV
FIGURE 19. WIPER DIGITAL FEED-THROUGH
12
SCL
9TH CLK OF THE
DATA BYTE (ACK)
FIGURE 20. WIPER TRANSITION GLITCH
FN7872.0
June 21, 2011