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X9261TV24-2.7 Datasheet(PDF) 3 Page - Intersil Corporation |
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X9261TV24-2.7 Datasheet(HTML) 3 Page - Intersil Corporation |
3 / 21 page 3 FN8171.2 September 14, 2005 DETAILED FUNCTIONAL DIAGRAM 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 ampli- fier 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 wire- less 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 R0 R1 R2 R3 Wiper Counter Register (WCR) Resistor Array Pot 1 RH1 RL1 R0 R1 R2 R3 Wiper Counter Register (WCR) RH0 RL0 Data 8 RW0 RW1 Pot 0 INTERFACE AND CONTROL CIRCUITRY VCC VSS 256-taps 50k Ω and 100kΩ CS SCK A0 SO SI HOLD WP A1 Power-on Recall Power-on Recall X9261 |
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