Rainbow-electronics DS1806 Bedienungsanleitung PDF herunterladen

1 of 8 102199

FEATURES

 Six digitally controlled 64-position

potentiometers

 3-wire serial port provides for reading and

setting each potentiometer

 Devices can be cascaded for single processor

multi-device control

 Standard resistance values:

- DS1806-010 10 kΩ

- DS1806-050 50 kΩ

- DS1806-100 100 kΩ

 Operating Temperature Range:

- Industrial temperature: -40°C to +85°C

PIN DESCIPTION

- 3V or 5V Supply

RST - Serial Port Reset Input

- Serial Port Data Input

CLK - Serial Port Clock Input

OUT

- Cascade Data Output

H1 - H6 - High End terminal of Pot

W1 - W6 - Wiper Terminal of Pot

GND - Ground

L1-3 - Low Terminal Pots 1 through 3

L4-6 - Low Terminal Pots 4 through 6

PIN ASSIGNMENT

DESCRIPTION

The DS1806 Digital Sextet Potentiometer is a six-channel, digitally controlled, solid-state linear

potentiometer. Each potentiometer is comprised of 63 equiresistive sections as illustrated in the block

diagram of Figure 1. Each potentiometer has three terminals accessible to the user. These include the high

side terminals, H

, the wiper terminals, W

, and the low-end terminals, L1-3 and L4-6. Potentiometers 1

through 3 share the same low-end terminal L1-3; likewise, potentiometers 4 through 6 share the low-end

terminal L4-6.

Each wiper’s position is selected via an 8-bit register value. Communication and control of the device is

accomplished via a 3-wire serial port interface. This interface in conjunction with a cascade output allows

the value of the device wiper settings to be read.

DS1806

Digital Sextet Potentiometer

www.dalsemi.com

W1 1 20 V

W2 2 19 H1

L1-3 3 18 H2

W3 4 17 H3

W4 5 16 H4

L4-6 6 15 H5

W6 7 14 W5

RST 8 13 H6

CLK 9 12 D

GND 10 11 C

OUT

DS1806 20-Pin DIP (300-mil)

DS1806S 20-Pin SOIC (300-mil)

DS1806E 20-Pin TSSOP (173-mil)

See Mech. Drawings Section

1 2 3 4 5 6 7 8

Inhaltsverzeichnis

Seite 1 - Digital Sextet Potentiometer

1 of 8 102199FEATURES Six digitally controlled 64-positionpotentiometers 3-wire serial port provides for reading andsetting each potentiometer Devi

Seite 2 - OPERATION

DS18062 of 8 102199For multiple device and single processor environments, the DS1806 can be cascaded or daisy-chained.This feature allows a single pro

Seite 3 - DS1806 BLOCK DIAGRAM Figure 1

DS18063 of 8 102199Wiper placement for each potentiometer is such that position-63 corresponds to the HXterminal of the de-vice while position-0 corre

Seite 4 - CASCADE OPERATION

DS18064 of 8 1021993-WIRE SERIAL PORT TIMING Figure 4CASCADE OPERATIONA feature of the DS1806 is the ability to control multiple devices from a single

Seite 5

DS18065 of 8 102199TYPICAL APPLICATION CONFIGURATIONSFigure 6 shows the typical application configuration of the DS1806 as a fixed gain attenuator. In

Seite 6 - =2.7 to 5.5V)

DS18066 of 8 102199ABSOLUTE MAXIMUM RATINGS*Voltage on Any Pin Relative to Ground -0.5V to +7.0VOperating Temperature -40°C to +85°C; industrialStorag

Seite 7 - RST Inactive

DS18067 of 8 102199ANALOG RESISTOR CHARACTERISTICS (-40°C to +85°C;VCC=2.7 to 5.5V)PARAMETER SYMBOL MIN TYP MAX UNITS NOTESEnd-to-End Resistor Toleran

Seite 8 - DS1806 ORDERING INFORMATION

DS18068 of 8 1021994. -3 dB cutoff frequency characteristics for the DS1806 depend on potentiometer total resistance:DS1806-010; 1 MHz; DS1806-050; 20

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Rainbow-electronics DS1806 Bedienungsanleitung

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