Datasheet > DS1808

DS1808

更新时间： 2024-11-03 22:50:47

品牌	Logo	应用领域
达拉斯 - DALLAS		电位器
页数	文件大小	规格书
17页	431K
描述
Dual Log Digital Potentiometer

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DS1808 数据手册

DS1808

Dual Log Digital Potentiometer

www.maxim-ic.com

FEATURES

PIN ASSIGNMENT

C Two 32-position log-tapers

C 60dB attenuation range:

–1dB per step (12 taps)

V_DD

V_CC

SCL

SDA

GND

–2dB per step (12 taps)

–3dB per step (8 taps)

–90dB low-end attenuation

C 2-Wire Interface Control

C Power Supply: Dual M12V

C Maximum Voltage Across Potentiometers:

MꢀꢁV

V_B

C Standard Resistance Value: 45kꢂ

C Packages: 16-Pin SOIC

C Operating Temperature: -40^oC to +85^oC

16-Pin SOIC (150-mil)

ORDERING INFORMATION

PIN DESCRIPTION

DS1808Z-050

16-Pin SOIC -40ºC to

V_CC

- +12V Supply

+85ºC 45kΩ

V_B

- -12V Supply (substrate bias)

- 5V Digital Supply

V_DD

DS1808Z-050/T&R 16-Pin SOIC -40ºC to

H₀, H₁

L₀, L₁

W₀, W₁

SDA

SCL

/CE

- High-end Terminals

- Low-end Terminals

- Wiper Terminals

+85ºC 45kΩ

- 2-Wire Serial Data Input/Output

- 2-Wire Clock Input

- 2-Wire Interface Enable

- Ground

GND

A0, A1, A2 - Address Pins

DESCRIPTION

The DS1808 is a dual-channel, digitally controlled, log-taper potentiometer. Each potentiometer is

comprised of 32 wiper terminal positions plus a mute position. The device has three accessible

potentiometer terminals that include the high-side terminal (H), the low-side terminal (L), and the wiper

terminal (W). The resolution of the DS1808 is shown in Figure 8 and represents 1dB per step for the first

12 taps, 2dB per step for the next 12 taps and 3dB per step for the bottom 8 taps, providing a total

attenuation range of 60dB. The mute position of the DS1808 provides greater than 90dB of attenuation.

The wiper position on the resistor ladder is selected via a 6-bit register, whose value is controlled by the

industry-standard 2-wire interface. The interface consists of two control signals: SDA and SCL. The

DS1808 is available in a standard 45kꢂꢃresistor value. The DS1808 is specified to operate over the

industrial temperature range (-40^oC to +85^oC) and is available in the 16-pin SOIC package. The DS1808

was designed for low-cost, stereo volume control applications. The device is specified to operate from

±12V ±10% supplies and accept a maximum input signal range of ±12V.

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072601

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中文翻译

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与DS1808相关器件

型号	品牌	获取价格	描述	数据表
DS1808Z-050	DALLAS	获取价格	Dual Log Digital Potentiometer
DS1808Z-050/TR	DALLAS	获取价格	Digital Potentiometer, PDSO16,
DS1808Z-050+	MAXIM	获取价格	Digital Potentiometer, 2 Func, 45000ohm, 2-wire Serial Control Interface, 32 Positions, PD
DS1808Z-050+T&R	MAXIM	获取价格	Digital Potentiometer, 2 Func, 45000ohm, 2-wire Serial Control Interface, 32 Positions, PD
DS1809	DALLAS	获取价格	Dallastat, 64-position linear taper
DS1809	ADI	获取价格	Dallastat
DS1809-010	DALLAS	获取价格	Dallastat, 64-position linear taper
DS1809-010+	MAXIM	获取价格	Analog Circuit, 1 Func, PDIP8, 0.300 INCH, PLASTIC, DIP-8
DS1809-050	DALLAS	获取价格	Dallastat, 64-position linear taper
DS1809-050+	MAXIM	获取价格	Analog Circuit, 1 Func, PDIP8, 0.300 INCH, PLASTIC, DIP-8

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