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參數(shù)資料
| 型號： | x9319 |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | Digitally Controlled Potentiometer(數(shù)字電位器) |
| 中文描述： | 數(shù)控電位器（數(shù)字電位器） |
| 文件頁數(shù)： | 6/10頁 |
| 文件大小： | 233K |
| 代理商： | X9319 |
6
FN8185.2
September 26, 2006
PIN DESCRIPTIONS
R
H
and R
L
The high (R
H
) and low (R
L
) terminals of the X9319 are
equivalent to the fixed terminals of a mechanical
potentiometer. The terminology of R
L
and R
H
refer-
ences the relative position of the terminal in relation to
wiper movement direction selected by the U/D input
and not the voltage potential on the terminal.
R
W
R
w
is the wiper terminal and is equivalent to the mov-
able terminal of a mechanical potentiometer. The posi-
tion of the wiper within the array is determined by the
control inputs. The wiper terminal series resistance is
typically 40
Ω
.
Up/Down (U/D)
The U/D input controls the direction of the wiper move-
ment and whether the counter is incremented or dec-
remented.
Increment (INC)
The INC input is negative-edge triggered. Toggling
INC will move the wiper and either increment or decre-
ment the counter in the direction indicated by the logic
level on the U/D input.
Chip Select (CS)
The device is selected when the CS input is LOW. The
current counter value is stored in nonvolatile memory
when CS is returned HIGH while the INC input is also
HIGH. After the store operation is complete the X9319
will be placed in the low power standby mode until the
device is selected once again.
PIN CONFIGURATION
PIN NAMES
PRINCIPLES OF OPERATION
There are three sections of the X9319: the control
section, the nonvolatile memory, and the resistor
array. The control section operates just like an
up/down counter. The output of this counter is
decoded to turn on a single electronic switch
connecting a point on the resistor array to the wiper
output. The contents of the counter can be stored in
nonvolatile memory and retained for future use. The
resistor array is comprised of 99 individual resistors
connected in series. Electronic switches at either end
of the array and between each resistor provide an
electrical connection to the wiper pin, R
W
.
The wiper acts like its mechanical equivalent and does
not move beyond the first or last position. That is, the
counter does not wrap around when clocked to either
extreme.
The electronic switches on the device operate in a
“make before break” mode when the wiper changes
tap positions. If the wiper is moved several positions,
multiple taps are connected to the wiper for t
IW
(INC to
V
W
change). The R
TOTAL
value for the device can
temporarily be reduced by a significant amount if the
wiper is moved several positions.
When the device is powered-down, the last wiper posi-
tion stored will be maintained in the nonvolatile mem-
ory. When power is restored, the contents of the
memory are recalled and the wiper is set to the value
last stored.
R
H
V
SS
V
CC
CS
R
L
R
W
INC
U/D
1
2
3
4
8
7
6
5
X9319
PDIP/SOIC
Symbol
R
H
R
W
R
L
V
SS
V
CC
U/D
INC
CS
Description
High terminal
Wiper terminal
Low terminal
Ground
Supply voltage
Up/Down control input
Increment control input
Chip select control input
X9319
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X9319_06 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Digitally Controlled Potentiometer |
| X9319UP8 | 功能描述:IC DIGITAL POT 50K 100TAP 8-DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 標(biāo)準(zhǔn)包裝:2,500 系列:XDCP™ 接片:256 電阻（歐姆）:100k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 ±300 ppm/°C 存儲器類型:非易失 接口:I²C（設(shè)備位址） 電源電壓:2.7 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) |
| X9319UP8I | 功能描述:IC DIGITAL POT 50K 100TAP 8-DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 標(biāo)準(zhǔn)包裝:2,500 系列:XDCP™ 接片:256 電阻（歐姆）:100k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 ±300 ppm/°C 存儲器類型:非易失 接口:I²C（設(shè)備位址） 電源電壓:2.7 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) |
| X9319US8 | 功能描述:IC DIGITAL POT 50K 100TAP 8-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 標(biāo)準(zhǔn)包裝:2,500 系列:XDCP™ 接片:256 電阻（歐姆）:100k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 ±300 ppm/°C 存儲器類型:非易失 接口:I²C（設(shè)備位址） 電源電壓:2.7 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) |
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