X9111 Xicor, X9111 Datasheet - Page 2
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X9111
Manufacturer Part Number
X9111
Description
Single Digitally-Controlled Potentiometer
Manufacturer
Xicor
Datasheet
1.X9111.pdf
(21 pages)
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X9111 – Preliminary Information
DETAILED FUNCTIONAL DIAGRAM
CIRCUIT LEVEL APPLICATIONS
• Vary the gain of a voltage amplifier
• Provide programmable dc reference voltages for
• Control the volume in audio circuits
• Trim out the offset voltage error in a voltage amplifier
• Set the output voltage of a voltage regulator
• Trim the resistance in Wheatstone bridge circuits
• Control the gain, characteristic frequency and
• Set the scale factor and zero point in sensor signal
• Vary the frequency and duty cycle of timer ICs
• Vary the dc biasing of a pin diode attenuator in RF
• Provide a control variable (I, V, or R) in feedback
REV 1.1.15 5/9/03
comparators and detectors
circuit
Q-factor in filter circuits
conditioning circuits
circuits
circuits
HOLD
SCK
WP
SO
CS
A0
A1
SI
Interface
Circuitry
Control
V
V
and
CC
SS
Control
Data
www.xicor.com
DR0
DR2 DR3
Power On
Recall
DR1
SYSTEM LEVEL APPLICATIONS
• Adjust the contrast in LCD displays
• Control the power level of LED transmitters in
• Set and regulate the DC biasing point in an RF
• Control the gain in audio and home entertainment
• Provide the variable DC bias for tuners in RF
• Set the operating points in temperature control
• Control the operating point for sensors in industrial
• Trim offset and gain errors in artificial intelligent
communication systems
power amplifier in wireless systems
systems
wireless systems
systems
systems
systems
Register
Counter
(WCR)
Wiper
Characteristics subject to change without notice.
100KΩ
1024-taps
R
R
R
L
W
H
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