Datasheet DS1801 (Analog Devices)

DS1801 Dual Audio Taper Potentiometer www.dalsemi.com FEATURES PIN ASSIGNMENT
Ultra-low power consumption Operates from 3V or 5V supplies GND 1 14 VCC Two digitally controlled, 65-position COUT 2 13 CLK potentiometers including mute RST 3 12 D Logarithmic resistive characteristics (1 dB ZCEN 4 11 AGND per step) W0 5 10 H1 Zero-crossing detection eliminates noise caused by wiper movement L0 6 9 L1 Serial port provides means for setting and H0 7 8 W1 reading both potentiometers wipers 14-pin PDIP, 16-pin SOIC, and 14-pin DS1801 14-Pin PDIP (300-mil) TSSOP packages DS1801 14-Pin TSSOP (173-mil) Operating Temperature Range: - Industrial: -40°C to +85°C Software mute GND 1 16 VCC Resistance available: 45 kΩ COUT 2 15 CLK RST 3 14 D
PIN DESCRIPTION
ZCEN 4 13 NC L0, L1 - Low End of Resistor NC 5 12 AGND H0, H1 - High End of Resistor W0 6 11 H1 W0,W1 - Wiper End of Resistor L0 7 10 L1 VCC - 3V or 5V Power Supply Input H0 8 9 W1 RST - Serial Port Reset Input D - Serial Port Data Input DS1801S 16-PIN SOIC (300-mil) CLK - Serial Port Clock Input See Mech. Drawings Section GND - Digital Ground AGND - Analog Ground ZCEN - Zero-Crossing Detect Input COUT - Cascade Output NC - No Connect
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. 1 of 10 030300