DS1791DB, DS17A84, DS1800 Selling Leads, Datasheet
MFG:BB Package Cooled:SSOP D/C:2003
DS1791DB, DS17A84, DS1800 Datasheet download
Part Number: DS1791DB
MFG: BB
Package Cooled: SSOP
D/C: 2003
DS1791DB, DS17A84, DS1800
- Table of contents:
Info of DS1791DB
Info of DS17A84
Info of DS1800
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About DS1
PDF/DataSheet Download
Datasheet: DS1
File Size: 68288 KB
Manufacturer: Linear
Download : Click here to Download
About DS1
PDF/DataSheet Download
Datasheet: DS1
File Size: 68288 KB
Manufacturer: Linear
Download : Click here to Download
About DS1800
PDF/DataSheet Download
Datasheet: DS1800
File Size: 439007 KB
Manufacturer: Dallas
Download : Click here to Download
DS1800 General Description
The DS1800 is a dual audio-taper potentiometer designed specifically for use in the feedback path of the inverting configuration of an operational amplifier (see Figure 2). In this configuration, the DS1800 provides a VO /VI relationship of -20log(RF/RI), giving a gain/attenuation range covering +20 dB to -63 dB. Each potentiometer has a total of 129 positions including mute. The DS1800 provides five areas of resolution, which include: 0.25 dB per step from +20 dB to +3 dB; 0.5 dB per step from +3 dB to -12 dB; 1 dB from -12 dB to -27 dB; 2 dB per step from -27 dB to -47 dB; and 4 dB per step from -47 dB to -63 dB. The mute position provides 100 dB of attenuation.
The DS1800 has two control interfaces (see Figure 1). The first is a 3-wire serial CPU interface consisting of RST , CLK, and D. The second interface is a contact-closure interface, allowing easy pushbutton control without the need for external debounce or timing circuitry. The device also provides for software muting (via CPU) or hardware muting (MUTE control input). The hardware mute is a toggle type which returns the wiper positions to their prior states. Additional information on CPU and pushbutton control is described under the section entitled "OPERATION."
The DS1800 is available in 20-pin DIPs, SOICs, and TSSOPs. One standard resistance grade of 53 kΩ=is available for the device.
DS1800 Maximum Ratings
Voltage on Any Pin Relative to Ground -1.0V to +7.0V
-40° to +85°C
Storage Temperature -55°C to +125°C
Soldering Temperature 260°C for 10 seconds
-40° to +85°C
Storage Temperature -55°C to +125°C
Soldering Temperature 260°C for 10 seconds
DS1800 Features
Ultra-low power consumption
Operates from 3V or 5V supplies
Two digitally controlled, 128-position potentiometers including mute
Logarithmic gain characteristics
Zero-crossing detection eliminates noise caused by discrete wiper changes
Two control interfaces
- 3-wire serial CPU control
- Pushbutton control
20-pin DIP (300-mil), 20-pin SOIV (300- mil), and 20-pin (173-mil) TSSOP packaging available
Operating Temperature Range:
- Industrial: -40°C to +85°C
Software and hardware mute
Standard Resistance Available: 53KΩ
Operates from 3V or 5V supplies
Two digitally controlled, 128-position potentiometers including mute
Logarithmic gain characteristics
Zero-crossing detection eliminates noise caused by discrete wiper changes
Two control interfaces
- 3-wire serial CPU control
- Pushbutton control
20-pin DIP (300-mil), 20-pin SOIV (300- mil), and 20-pin (173-mil) TSSOP packaging available
Operating Temperature Range:
- Industrial: -40°C to +85°C
Software and hardware mute
Standard Resistance Available: 53KΩ
DS1800 Connection Diagram
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