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CAT5114WI-50

更新时间： 2024-11-07 06:53:39
品牌 Logo 应用领域
CATALYST 光电二极管
页数 文件大小 规格书
9页 110K
描述
50K DIGITAL POTENTIOMETER, INCREMENT/DECREMENT CONTROL INTERFACE, 32 POSITIONS, PDSO8, LEAD AND HALOGEN FREE, SOIC-8

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CAT5114WI-50 数据手册

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E
CAT5114  
32-Tap Digitally Programmable Potentiometer (DPP™)  
TM  
FEATURES  
APPLICATIONS  
■ 32-position linear taper potentiometer  
■ Non-volatile EEPROM wiper storage  
■ 10nA ultra-low standby current  
■ Automated product calibration  
■ Remote control adjustments  
■ Offset, gain and zero control  
■ Tamper-proof calibrations  
■ Single supply operation: 2.5V-6.0V  
■ Increment Up/Down serial interface  
■ Resistance values: 10kΩ, 50kΩ and 100kΩ  
■ Available in PDIP, SOIC, TSSOP and MSOP packages  
■ Contrast, brightness and volume controls  
■ Motor controls and feedback systems  
■ Programmable analog functions  
DESCRIPTION  
new system values without effecting the stored  
setting. Wiper-control of the CAT5114 is  
accomplished with three input control pins, CS, U/D,  
and INC. The INC input increments the wiper in the  
direction which is determined by the logic state of  
the U/D input. The CS input is used to select the  
device and also store the wiper position prior to  
power down.  
The CAT5114 is a single digitally programmable  
potentiometer (DPP™) designed as a electronic  
replacement for mechanical potentiometers and trim  
pots. Ideal for automated adjustments on high volume  
production lines, they are also well suited for  
applications where equipment requiring periodic  
adjustment is either difficult to access or located in a  
hazardous or remote environment.  
The digitally programmable potentiometer can be  
used as a three-terminal resistive divider or as a  
two-terminalvariableresistor.DPPsbringvariabilityand  
programmability to a wide variety of applications  
including control, parameter adjustments, and  
signal processing.  
The CAT5114 contains a 32-tap series resistor array  
connected between two terminals RH and RL. An up/  
down counter and decoder that are controlled by three  
input pins, determines which tap is connected to the  
wiper, RW. The wiper setting, stored in nonvolatile  
memory, is not lost when the device is powered  
down and is automatically reinstated when power  
is returned. The wiper can be adjusted to test  
FUNCTIONAL DIAGRAM  
RH /VH  
31  
30  
Vcc (Supply Voltage)  
U/D  
INC  
CS  
VH /RH  
5-BIT  
UP/DOWN  
COUNTER  
RH /VH  
29  
28  
UP/DOWN  
(U/D)  
5-BIT  
NONVOLATILE  
MEMORY  
ONE  
OF  
Control  
and  
Memory  
INCREMENT  
THIRTY TWO  
DECODER  
R
/
VW  
TRANSFER  
GATES  
RESISTOR  
ARRAY  
W
RW/VW  
(INC)  
DEVICE SELECT  
2
1
0
(CS)  
RL /VL  
POR  
STORE AND  
RECALL  
CONTROL  
CIRCUITRY  
Vcc  
V
SS  
GND  
VL / RL  
RL /VL  
RW/VW  
ELECTRONIC POTENTIOMETER  
IMPLEMENTATION  
GENERAL  
DETAILED  
© 2003 by Catalyst Semiconductor, Inc.  
Doc. No. 2007, Rev. G  
1
Characteristics subject to change without notice  
1234567...9

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