Datasheet X9312 (Intersil) - 6
| 制造商 | Intersil |
| 描述 | Digitally Controlled Potentiometer (XDCP) |
| 页数 / 页 | 9 / 6 — X9312. A.C. OPERATING CHARACTERISTICS. Limits. Symbol. Parameter. Min. … |
| 文件格式/大小 | PDF / 247 Kb |
| 文件语言 | 英语 |
X9312. A.C. OPERATING CHARACTERISTICS. Limits. Symbol. Parameter. Min. Typ.6. Max. Unit. POWER-UP AND DOWN REQUIREMENTS. A.C. TIMING
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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