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X9119 Datasheet, PDF (2/23 Pages) Xilinx, Inc – Single Digitally-Controlled (XDCP ™ ) Potentiometer | |||
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X9119 â Preliminary Information
DETAILED FUNCTIONAL DIAGRAM
VCC
SCL
SDA
A2
A1
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
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 1.1.11 3/12/02
www.xicor.com
Characteristics subject to change without notice. 2 of 22
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