X9261TV24Z datasheet(3/21 Pages) INTERSIL

Part #	X9261TV24Z

Description	Single Supply/Low Power/256-Tap/SPI Bus

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Manufacturer	INTERSIL [Intersil Corporation]

Direct Link	http://www.intersil.com/cda/home

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3

FN8171.2

September 14, 2005

DETAILED FUNCTIONAL DIAGRAM

CIRCUIT LEVEL APPLICATIONS

• Vary the gain of a voltage amplifier

• Provide programmable dc reference voltages for

comparators and detectors

• Control the volume in audio circuits

• Trim out the offset voltage error in a voltage ampli-

fier circuit

• Set the output voltage of a voltage regulator

• Trim the resistance in Wheatstone bridge circuits

• Control the gain, characteristic frequency and

Q-factor in filter circuits

• Set the scale factor and zero point in sensor signal

conditioning circuits

• Vary the frequency and duty cycle of timer ICs

• Vary the dc biasing of a pin diode attenuator in RF

circuits

• Provide a control variable (I, V, or R) in feedback

circuits

SYSTEM LEVEL APPLICATIONS

• Adjust the contrast in LCD displays

• Control the power level of LED transmitters in

communication systems

• Set and regulate the DC biasing point in an RF

power amplifier in wireless systems

• Control the gain in audio and home entertainment

systems

• Provide the variable DC bias for tuners in RF wire-

less systems

• Set the operating points in temperature control

systems

• Control the operating point for sensors in industrial

systems

• Trim offset and gain errors in artificial intelligent

systems

R0 R1

R2 R3

Wiper

Counter

Register

(WCR)

Resistor

Array

Pot 1

RH1

RL1

R0 R1

R2 R3

Wiper

Counter

Register

(WCR)

RH0 RL0

Data

8

RW0

RW1

Pot 0

INTERFACE

AND

CONTROL

CIRCUITRY

VCC

VSS

256-taps

50k

Ω and 100kΩ

CS

SCK

A0

SO

SI

HOLD

WP

A1

Power-on

Recall

Power-on

Recall

X9261

Similar Part No. - X9261TV24Z

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Renesas Technology Corp	X9261US24	442Kb / 20P	Single Supply/Low Power/256-Tap/SPI Bus October 12, 2006

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Manufacturer	Part #	Datasheet	Description
Intersil Corporation	X9251	354Kb / 22P	Single Supply/Low Power/256-Tap/SPI Bus
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Renesas Technology Corp	X9261	442Kb / 20P	Single Supply/Low Power/256-Tap/SPI Bus October 12, 2006
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Intersil Corporation	X9251US24Z	438Kb / 21P	Single Supply/Low Power/256-Tap/SPI Bus, Quad Digitally-Controlled Potentiometer December 3, 2014
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Intersil Corporation	X9111	359Kb / 18P	Single Supply/Low Power/1024-Tap/SPI Bus
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X9261TV24Z Datasheet(PDF) 3 Page - Intersil Corporation

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