X9110 datasheet(2/21 Pages) XICOR

2 / 21 page

X9110

– Preliminary Information

Characteristics subject to change without notice.

2 of 21

REV 1.1.4 11/13/00

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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 ampliﬁer

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

wireless 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

DETAILED FUNCTIONAL DIAGRAM

SCK

HOLD

Interface

and

Control

Circuitry

V+

VCC

VSS

DR0

DR1

DR2 DR3

Wiper

Counter

(WCR)

Data

1024-taps

100K

Ω

Control

Power On

Recall

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