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X9279 Datasheet(PDF) 2 Page - Xicor Inc. |
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X9279 Datasheet(HTML) 2 Page - Xicor Inc. |
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2 / 24 page  X9279 Characteristics subject to change without notice. 2 of 24 REV 1.1.7 2/6/03 www.xicor.com DETAILED FUNCTIONAL DIAGRAM DR0 DR1 DR2 DR3 WIPER COUNTER REGISTER (WCR) RH RL DATA RW INTERFACE AND CONTROL CIRCUITRY VCC VSS 256-taps 50K Ω and 100KΩ Bank 0 Bank 1 Bank 2 Bank 3 12 additional nonvolatile registers 3 Banks of 4 registers x 8-bits A0 SCL SDA A1 A2 WP Control Power On Recall DR0 DR1 DR2 DR3 DR0 DR1 DR2 DR3 DR0 DR1 DR2 DR3 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 |
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Similar Description - X9279 |
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