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DS1801S Datasheet(PDF) 1 Page - Dallas Semiconductor |
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DS1801S Datasheet(HTML) 1 Page - Dallas Semiconductor |
1 / 10 page 1 of 10 030300 FEATURES Ultra-low power consumption Operates from 3V or 5V supplies Two digitally controlled, 65-position potentiometers including mute Logarithmic resistive characteristics (1 dB per step) Zero-crossing detection eliminates noise caused by wiper movement Serial port provides means for setting and reading both potentiometers wipers 14-pin PDIP, 16-pin SOIC, and 14-pin TSSOP packages Operating Temperature Range: - Industrial: -40 °C to +85°C Software mute Resistance available: 45 k Ω PIN DESCRIPTION L0, L1 - Low End of Resistor H0, H1 - High End of Resistor W0,W1 - Wiper End of Resistor VCC - 3V or 5V Power Supply Input RST - Serial Port Reset Input D - Serial Port Data Input CLK - Serial Port Clock Input GND - Digital Ground AGND - Analog Ground ZCEN - Zero-Crossing Detect Input COUT - Cascade Output NC - No Connect PIN ASSIGNMENT DESCRIPTION The DS1801 is a dual audio taper potentiometer having logarithmic resistive characteristics over the device range. Each potentiometer provides 65 wiper positions with a 1 dB increment per step and device mute. The 3-wire serial interface, using a CPU, provides the user the ability of reading or writing exact wiper positions of the two potentiometers. Additionally, the part contains a zero-crossing detection feature that minimizes noise resulting from wiper transitions. Packages for the part include a 14-pin PDIP, 16-pin SOIC, and 14-pin TSSOP. DS1801 Dual Audio Taper Potentiometer www.dalsemi.com GND 1 14 VCC COUT 2 13 CLK RST 3 12 D ZCEN 4 11 AGND W0 5 10 H1 L0 6 9 L1 H0 7 8 W1 DS1801 14-Pin PDIP (300-mil) DS1801 14-Pin TSSOP (173-mil) GND 1 16 VCC COUT 2 15 CLK RST 3 14 D ZCEN 4 13 NC NC 5 12 AGND W0 6 11 H1 L0 7 10 L1 H0 8 9 W1 DS1801S 16-PIN SOIC (300-mil) See Mech. Drawings Section |
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