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X9110 Datasheet, PDF (2/21 Pages) Xicor Inc. – Single Digitally-Controlled (XDCP) Potentiometer | |||
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X9110 â Preliminary Information
DETAILED FUNCTIONAL DIAGRAM
VCC
V+
HOLD
CS
SCK
SO
SI
A0
WP
Interface
and
Control
Circuitry
Data
Control
Power On
Recall
DR0 DR1
DR2 DR3
Wiper
Counter
Register
(WCR)
RH
100Kâ¦
1024-taps
RL
RW
VSS
V-
CIRCUIT LEVEL APPLICATIONS
⢠Vary the gain of a voltage ampliï¬er
⢠Provide programmable dc reference voltages for
comparators and detectors
⢠Control the volume in audio circuits
⢠Trim out the offset voltage error in a voltage ampliï¬er
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 ï¬lter 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 ampliï¬er 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 artiï¬cial intelligent
systems
REV 1.1.4 11/13/00
www.xicor.com
Characteristics subject to change without notice. 2 of 21
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