Datasheet X9312 (Intersil) - 6
| Manufacturer | Intersil |
| Description | Digitally Controlled Potentiometer (XDCP) |
| Pages / Page | 9 / 6 — X9312. A.C. OPERATING CHARACTERISTICS. Limits. Symbol. Parameter. Min. … |
| File Format / Size | PDF / 247 Kb |
| Document Language | English |
X9312. A.C. OPERATING CHARACTERISTICS. Limits. Symbol. Parameter. Min. Typ.6. Max. Unit. POWER-UP AND DOWN REQUIREMENTS. A.C. TIMING
Model Line for this Datasheet
Text Version of Document
X9312 A.C. OPERATING CHARACTERISTICS
(Over recommended operating conditions unless otherwise specified)
Limits Symbol Parameter Min. Typ.6 Max. Unit
tCl CS to INC setup 100 ns tlD INC HIGH to U/D change 100 ns tDI U/D to INC setup 1 µs tlL INC LOW period 1 µs tlH INC HIGH period 1 µs tlC INC inactive to CS inactive 1 µs tCPH CS deselect time (STORE) 20 ms tCPH CS deselect time (NO STORE) 100 ns tIW INC to Vw change 100 500 µs tCYC INC cycle time 4 µs t 7 R, tF INC input rise and fall time 500 µs t 7 PU Power-up to wiper stable 500 µs t 7 R VCC VCC power-up rate 0.2 50 V/ms
POWER-UP AND DOWN REQUIREMENTS
There are no restrictions on the sequencing of VCC and the voltages applied to the potentiometer pins during power- up or power-down conditions. During power-up, the data sheet parameters for the DCP do not fully apply until 1 millisecond after VCC reaches is final value. The VCC ramp spec is always in effect.
A.C. TIMING
CS tCYC tCI tIL tIH tIC tCPH 90% 90% INC 10% tID tDI tF tR U/D tIW (8) V MI W Notes: (6) Typical values are for TA = 25°C and nominal supply voltage. (7) This parameter is sample tested. (8) MI in the A.C. timing diagram refers to the minimum incremental change in the VW output due to a change in the wiper position. 6 FN8176.0 March 15, 2005
(Over recommended operating conditions unless otherwise specified)
Limits Symbol Parameter Min. Typ.6 Max. Unit
tCl CS to INC setup 100 ns tlD INC HIGH to U/D change 100 ns tDI U/D to INC setup 1 µs tlL INC LOW period 1 µs tlH INC HIGH period 1 µs tlC INC inactive to CS inactive 1 µs tCPH CS deselect time (STORE) 20 ms tCPH CS deselect time (NO STORE) 100 ns tIW INC to Vw change 100 500 µs tCYC INC cycle time 4 µs t 7 R, tF INC input rise and fall time 500 µs t 7 PU Power-up to wiper stable 500 µs t 7 R VCC VCC power-up rate 0.2 50 V/ms
POWER-UP AND DOWN REQUIREMENTS
There are no restrictions on the sequencing of VCC and the voltages applied to the potentiometer pins during power- up or power-down conditions. During power-up, the data sheet parameters for the DCP do not fully apply until 1 millisecond after VCC reaches is final value. The VCC ramp spec is always in effect.
A.C. TIMING
CS tCYC tCI tIL tIH tIC tCPH 90% 90% INC 10% tID tDI tF tR U/D tIW (8) V MI W Notes: (6) Typical values are for TA = 25°C and nominal supply voltage. (7) This parameter is sample tested. (8) MI in the A.C. timing diagram refers to the minimum incremental change in the VW output due to a change in the wiper position. 6 FN8176.0 March 15, 2005
