X9317_09 Datasheet, PDF (8/15 Pages) Intersil Corporation – Digitally Controlled Potentiometer (XDCP™)

X9317
Power-up and Down Requirements
The recommended power-up sequence is to apply V_CC/V_SS
first, then the potentiometer voltages. During power-up, the
data sheet parameters for the DCP do not fully apply until
AC Timing
1ms after V_CC reaches its final value. The V_CC ramp spec is
always in effect. In order to prevent unwanted tap position
changes, or an inadvertent store, bring the CS and INC high
before or concurrently with the V_CC pin on power-up.
CS
t_CI
INC
t_CYC
t_IL
t_IH
t_IC
t_ID
t_DI
t_CPHS
90% 90%
10%
t_CPHNS
t_F
t_R
U/D
t_IW
R_W
(3)
MI
Typical Performance Characteristic
0
-50
-100
-150
-200
-250
-300
-350
-55 -45 -35 -25 -15 -5 5 15 25 35 45 55 65 75 85 95 105115 125
TEMPERATURE (°C)
FIGURE 1. TYPICAL TOTAL RESISTANCE TEMPERATURE COEFFICIENT
8
FN8183.6
December 16, 2009