X9116 Datasheet, PDF (6/11 Pages) Xicor Inc. – Digitally Controlled Potentiometer (XDCP)

X9116
A.C. OPERATING CHARACTERISTICS (Over recommended operating conditions unless otherwise specified)
Symbol
t_Cl
t_lD
t_DI
t_lL
t_lH
t_lC
t_CPH
t_IW
t_CYC
t_R, t_F⁽⁷⁾
t_PU⁽⁷⁾
t_R V_CC⁽⁷⁾
t_WR
Parameter
CS to INC setup
INC HIGH to U/D change
U/D to INC setup
INC LOW period
INC HIGH period
INC inactive to CS inactive
CS deselect time (STORE)
INC to Vw change
INC cycle time
INC input rise and fall time
Power up to wiper stable
V_CC Power-up rate
Store cycle
Min.
100
100
2.9
1
1
1
10
4
15
Limits
Typ.⁽⁶⁾
1
5
Max.
5
500
5
50
10
Unit
ns
ns
µs
µs
µs
µs
ms
µs
µs
µs
µs
mV/µs
ms
POWER UP AND DOWN REQUIREMENTS
There are no restrictions on the power-up or power-down conditions of V_CC and the voltages applied to the potenti-
ometer pins provided that V_CC is always more positive than or equal to V_H, V_L, and V_W, i.e., V_CC ≥ V_H, V_L, V_W. The
V_CC ramp rate spec is always in effect.
A.C. TIMING
CS
t_CI
INC
U/D
t_IW
V_W
t_CYC
t_IL
t_IH
t_ID
(store)
t_IC
t_CPH
t_DI
MI ⁽⁸⁾
90% 90%
10%
t_F
t_R
Notes: (6) Typical values are for T_A = 25°C and nominal supply voltage.
(7) This parameter is not 100% tested.
(8) MI in the A.C. timing diagram refers to the minimum incremental change in the V_W output due to a change in the wiper position.
REV 1.2 2/5/03
www.xicor.com
Characteristics subject to change without notice. 6 of 11