Rainbow-electronics DS1669S Uživatelský manuál stáhnout pdf

patents and other intellectual property rights, please refer to

Dallas Semiconductor data books.

DS1668, DS1669, DS1669S

Dallastat

Electronic Digital Rheostat

DS1668, DS1669, DS1669S

081895 1/10

FEATURES

• Replaces mechanical variable resistors

• Available as the DS1668 with manual interface or the

DS1669 integrated circuit

• Human engineered interface provides easy control

with DS1668

• Electronic interface provided for digital as well as

manual control

• Wide differential input voltage range between 4.5 and

8 volts

• Wiper position is maintained in the absence of power

• Low cost alternative to mechanical controls

• Applications include volume, tone, contrast, bright-

ness, and dimmer control

• 8–pin SOIC and 8–pin DIP packages for DS1669

• Standard resistance values for Dallastat

– DS1668/DS1669–10

10KΩ

– DS1668/DS1669–50

50KΩ

– DS1668/DS1669–100

100KΩ

• Operating Temperature Range

– Commercial: 0°C to 70°C; DS1668, DS1669

– Industrial: –40°C to +85°C; DS1669

PIN ASSIGNMENT DS1668

NC DR

-VR

PIN 1

INDICATOR

TOP VIEW

123

654

INTEGRATED

PUSHBUTTON

PIN ASSIGNMENT DS1669

–V

)

8-Pin DIP (300 Mil)

V-

)

8-Pin SOIC (208 Mil)

PIN DESCRIPTION DS1669

- Resistor High End

- Resistor Wiper

- Resistor Low End

-V, +V - Voltage Inputs

UC - Up Contact Input

D - Digital Input

DC - Down Contact Input

PIN DESCRIPTION DS1668

+V - Positive Voltage Input

-V - Negative Voltage

- Resistor Wiper

D - Digital Input

- Resistor High End

NC - No Connection - Pin Missing

1 2 3 4 5 6 7 8 9 10

Shrnutí obsahu

Strany 1 - Electronic Digital Rheostat

Strany 2 - OPERATION

DS1668, DS1669, DS1669S081895 10/10DS1668 PUSHBUTTON DIMENSIONS.420.420.100.125.185.100.300.185PIN 1INDICATOR.022.012.035

Strany 3

DS1668, DS1669, DS1669S081895 2/10DESCRIPTIONThe DS1668 and DS1669 Dallastats are digital rheo-stats or potentiometers. These units provide 64 pos-si

Strany 4 - NONVOLATILE WIPER SETTINGS

DS1668, DS1669, DS1669S081895 3/10DS1669 SINGLE PUSHBUTTON CONFIGURATION (TYPICAL EXAMPLE) Figure 1DS1669RHUCDRLV+DCRWV–DS1669 DUAL PUSHBUTTON CONFIGU

Strany 5 - BLOCK DIAGRAM Figure 3

DS1668, DS1669, DS1669S081895 4/10Dallastats interpret input pulse widths as the means ofcontrolling wiper movement. A single pulse width inputover t

Strany 6

DS1668, DS1669, DS1669S081895 5/10DS1668 DALLASTATTM BLOCK DIAGRAM Figure 3INPUTINTERPRETERAND CONTROLSHADOW MEMORY64 TO 1 MUXERRHEOSTAT+DUCDC-RLRHRWN

Strany 7 - ABSOLUTE MAXIMUM RATINGS*

DS1668, DS1669, DS1669S081895 6/10FLOWCHART: TWO BUTTON OPERATION Figure 5CONTACT CLOSUREINCREMENT 1/64THDCUC OR DC?AT UPPERLIMIT?UCBOTH CONTACTSOPEN

Strany 8 - TIMING DIAGRAMS Figure 6

DS1668, DS1669, DS1669S081895 7/10ABSOLUTE MAXIMUM RATINGS*Voltage on Any Pin Relative to -V -V –0.5V + 8.0VOperating Temperature 0°C to 70°C commerci

Strany 9 - 081895 9/10

DS1668, DS1669, DS1669S081895 8/10ANALOG RESISTOR CHARACTERISTICS (-40°C to +85°C)PARAMETER SYMBOL MIN TYP MAX UNITS NOTESEnd–to–End Resistor Toleranc

Strany 10 - DS1668 PUSHBUTTON DIMENSIONS

DS1668, DS1669, DS1669S081895 9/10NOTES:1. All inputs; UV, DC, and D are internally pulled up with a resistance of 100KΩ.2. Input logic levels are ref

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