DS1666

DS1666, DS1666S DS1666, DS1666S Audio Digital Resistor FEATURES PIN ASSIGNMENT NC U/D INC CS GND NC NC 1 2 3 4 5 6 7 14 13 12 11 10 9 8 NC VCC VB VW VH VL NC 128 position, digitally controlled potentiometer Operates from a +5 volts power supply with TTL signal inputs Wide analog voltage range of ±5 volts Resistive elements are temperature compensated to ±20 percent end to end Low–power CMOS 14–pin DIP or 16–pin SOIC for surface mount applications 14–PIN DIP (300 MIL) See Mech. Drawings Section U/D NC NC INC NC CS NC GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC NC VB VW VH NC NC VL Default position on power up sets wiper position at 10% Operating temperature range – –40°C to +85°C; industrial Resolution/Step Resistance values Low End High End –3dB Point DS1666–10 10KΩ 24Ω 152Ω 1.1 MHz DS1666–50 50KΩ 122Ω 759Ω 200 KHz DS1666–100100KΩ 243Ω 1.519KΩ 100 KHz 16–PIN SOIC (300 MIL) See Mech. Drawings Section PIN DESCRIPTION VH VL VW U/D INC CS NC VCC GND VB – – – – – – – – – – High Terminal of Resistor Low Terminal of Resistor Wiper Terminal of Resistor Up/Down Control Wiper Movement Control Chip Select for Wiper Movement No Connection +5 Volts Ground 0 to –5 Volts DESCRIPTION The DS1666 is a solid–state potentiometer which is set to value by digitally controlled resistive elements. The potentiometer is composed of 127 resistive sections. Between each resistive section and both ends of the potentiometer are TAP points accessible to the wiper. The positio...