DS1801

双路音量调节电位器


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说明

The 1801 Dual Audio Taper Potentiometer consists of two 65-position, 45kΩ digital potentiometers with logarithmic resistance properties incrementing 1dB per step.

The DS1801 operates with automatic software control via a serial 3-wire interface, where wiper settings are written with 8-bit words. The part can be used in either 3V or 5V environments and anywhere within the industrial temperature range of -40°C to +85°C. Also enabling flexible design possibilities, the DS1801 supports daisy-chaining with devices under single-processor control.

The DS1801 provides high-performance audio volume and tone control in most applications where mechanical potentiometers are used, including CD players, guitar amplifiers, and sound boards. Digital potentiometers consume very little power while providing digital accuracy and reliability under flexible, automatic processor control.
DS1801:原理框图 DS1801:原理框图 放大+

关键特性

  • Two digitally controlled, 65-position potentiometers
  • Ultra low-power consumption
  • Logarithmic resistive characteristics (1dB per step)
  • Zero-crossing detection to eliminate noise
  • Three-wire communication
  • Can be daisy-chained for single-processor, multidevice designs
  • Operating temperature range: -40°C to +85°C
  • Operating voltage range: 3V or 5V
  • Resistance available: 45kΩ
Part NumberTaperPOTsControl InterfaceWiper MemoryStepsREND-TO-END
(kΩ)
Res. Tol.
(%)
Temp. Coeff.
(ppm/°C)
Wiper Resistance
(Ω)
ICC @5V
(µA)
Package/PinsBudgetary
Price
typtypmaxSee Notes
DS1801 Log23-Wire SerialVolatile64452075040050
PDIP/14
SOIC (W)/16
TSSOP/14
$4.04 @1k
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Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

技术资料

应用笔记 3287 White-LED Driver Provides 64-Step Logarithmic Dimming

质量和环境数据

产品可靠性报告: DS1801.pdf 
无铅封装的锡(Sn)晶须报告

其它资源

温度系列产品,按产品类型划分
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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相关资料

类型 编号 PDF 标题
应用笔记 3287 White-LED Driver Provides 64-Step Logarithmic Dimming