Rainbow-electronics DS1800 Bedienungsanleitung

Copyright 1995 by Dallas Semiconductor Corporation.All Rights Reserved. For important information regardingpatents and other intellectual property r

DS1800072095 10/13RECOMMENDED CIRCUIT CONFIGURATION Figure 2VO–+OUTxINxVCC/2DS1800WxRFRIVIVO/VI GAIN/ATTENUATION VS. POSITION RELATIONSHIP Figure 3GAI

DS1800072095 11/13RF/RI RELATIONSHIP VS. POSITION Figure 4RF, RI VERSUS POSITIONPOSITIONRESISTANCE (ohms)3–WIRE SERIAL TIMING DIAGRAM Figure 5RSTCLKDt

DS1800072095 12/1316–BIT I/O SHIFT REGISTER Figure 615 14 13 12 11 10 9 8 7 6543210WIPER–1POSITION VALUEWIPER–0POSITION VALUECONTACT CLOSURE TIMING DI

DS1800072095 13/13DIGITAL OUTPUT LOAD Figure 95V1.1 KΩ50 pF680ΩD.U.T.INTERNAL GROUND CONNECTIONS Figure 10AGND GND100Ω (TYPICAL)NOTE: GND and AGND mus

DS1800072095 2/13CPU) or hardware muting (MUTE control input). Thehardware mute is a toggle type which returns the wiperpositions to their prior stat

DS1800072095 3/13button debounce is faster. These timing differences arediscussed in the section entitled “Push–button Inter-face Control”. The sta

DS1800072095 4/13provide the opposite function; positioning the wiper(s)closer to the INx terminals, thus providing gain.Each of these control inputs

DS1800072095 5/13Also, if operating in push–button mode, MUTE will bedeactivated if an input is received over any push–buttoninput. This input, like

DS1800072095 6/13ABSOLUTE MAXIMUM RATINGS*Voltage on Any Pin Relative to Ground –1.0V to +7.0VOperating Temperature 0°C to 70°C; commercial–40°C to +8

DS1800072095 7/13ANALOG RESISTOR CHARACTERISTICS (–40°C to +85°C; VCC=2.7V to 5.5V)PARAMETER SYMBOL MIN TYP MAX UNITS NOTESTotal Resistance 53 KΩEnd–t

DS1800072095 8/13AC ELECTRICAL CHARACTERISTICS (–40°C to +85°C; VCC=2.7V to 5.5V)PARAMETER SYMBOL MIN TYP MAX UNITS NOTESCLK Frequency fCLKDC 10 MHzWi

DS1800072095 9/138. Power–up time is the time for all push–button inputs to be stable and active once power has reached a validlevel, 2.7V min.9. Abso