DS1807 可编址、双路音量调节电位器

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概述

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The DS1807 consists of two addressable potentiometers having a logarithmic resistor characteristic over the device range. Each potentiometer provides 64 wiper positions with a 1dB-per-step resolution. The device also provides greater than 90dB of attenuation in the mute position. Zero-crossing detection is a primary feature of the DS1807 allowing for pop-free wiper transitions. Wiper positions are read and controlled via a 2-wire interface, which allows up to 8 devices to be controlled on the same 2-wire bus.

The DS1802 provides high-performance audio volume and tone control with processor addressability. It replaces mechanical potentiometers with digital accuracy and reliability while its low-power circuits consume very little current.

关键特性

Operates from 3V or 5V power supplies
Ultra low-power consumption
Dual digitally controlled, 65-position potentiometers
Logarithmic resistance characteristic (1dB per step)
Zero crossing eliminates noise caused by discrete wiper changes
2-wire addressable control interface
Industrial operating temperature range: -40°C to +85°C

Key Specifications: Digital Potentiometers

Part Number

Taper

POTs Per Pkg.

Control Interface

Wiper Memory

Number of Steps

End-to-End Resistance (kΩ)

Res. Tol. (%)

Temp. Coeff. (typ)(ppm/°C)

Wiper Resistance (typ) (Ω)

Max. Idle State Supply Current @5V (µA)

Applications

Features

Supply Voltage (V)

RoHS Available

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

Price^**

DS1807

Log

2-Wire Addressable

Volatile

750

400

•	Audio Control

•	Car Stereo

•	Desktop Speakers

•	Portable Audio

•

Mute

•	Ultra Low Power Consumption

•	Zero-Crossing Detector

2.7 to 5.5

Yes

PDIP/14
SOIC/16
TSSOP/14

-40 to +85

$2.31 @ 1k

See All Digital Potentiometers (121)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.