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参数资料
| 型号： | DS1881Z-050+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC DGTL POT NV 2CH 45K 16-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1,000 |
| 接片： | 64 |
| 电阻（欧姆）： | 45k |
| 电路数： | 2 |
| 温度系数： | 标准值 750 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | I²C（设备位址） |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 带卷 (TR) |
General Description
The DS1881 is a dual, nonvolatile (NV) digital poten-
tiometer designed to operate in audio systems that
require 5V signal levels. The potentiometer settings can
be stored in EEPROM so that they are retained when the
power is cycled. The DS1881 has separate supplies for
the potentiometers (VCC) and the communication circuit-
ry (VDD). For clickless/popless operation, a zero-crossing
detector allows the wiper position to change when there
is no voltage across the potentiometer. The device is
also designed to minimize crosstalk, and the two digital
potentiometers provide 0.5dB channel-to-channel match-
ing to prevent volume differences between channels.
Total harmonic distortion (THD) is also minimal as long
as the wiper drives a high-impedance load.
Two attenuation configuration options provide optimum
flexibility for the specific application. Configuration
Option 1 provides 63 logarithmic tapered steps (0dB to
-62dB, 1dB/step) plus a mute setting. Configuration
Option 2 has 32 logarithmic steps plus mute and pro-
vides software compatibility with the DS1808. When
Configuration Option 2 is used in combination with the
16-pin SO package, the DS1881 is both software and pin
compatible with the DS1808 in 5V applications.
Applications
Notebook and PC Audio
Portable Audio Equipment
Car Stereo
Consumer Audio/Video
Features
Dual, Audio Log Taper Potentiometers
Low THD+N and Crosstalk
5V Analog Supply (Independent of Digital Supply)
3V to 5V Digital Supply Range
Potentiometer Settings Configurable as NV
or Volatile
Zero-Crossing Detector Eliminates Switching
Noise
Two User-Configurable Attenuation Options
Configuration Option 1: 63 Positions Provide 1dB
Attenuation Steps from 0dB to -62dB Plus Mute
Configuration Option 2: (Software-Compatible
with the DS1808): 33 Positions Plus Mute as
Follows
Positions 0–12: 1dB per Step for 12 Steps
Positions 13–24: 2dB per Step for 12 Steps
Positions 25–32: 3dB per Step for 8 Steps
I2C-Compatible Serial Interface
Three Address Pins Allow Up to 8 Devices on
I2C Bus
45kΩ Potentiometer End-to-End Resistance
Industrial Temperature Range (-40°C to +85°C)
16-Pin TSSOP or SO Package
DS1881
Dual NV Audio Taper Digital Potentiometer
______________________________________________ Maxim Integrated Products
1
16
15
14
13
12
11
10
1
2
3
4
5
6
7
VDD
VCC
SCL
SDA
N.C.
A1
A2
GND
TOP VIEW
CE
W1
H1
L0
W0
9
8L1
H0
A0
TSSOP/SO
DS1881
+
Pin Configuration
Rev 0; 1/06
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
+Denotes lead-free package.
Ordering Information
PART
TEMP
RANGE
VERSION
(kΩ)
PIN-
PACKAGE
DS1881E-050+
-40°C to +85°C
45
16 TSSOP
(173 mils)
DS1881E-050+T&R -40°C to +85°C
45
16 TSSOP
(173 mils)
Tape-and-Reel
DS1881Z-050+
-40°C to +85°C
45
16 SO
(150 mils)
DS1881Z-050+T&R -40°C to +85°C
45
16 SO
(150 mils)
Tape-and-Reel
Typical Operating Circuit appears at end of data sheet.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1882 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Dual Log Audio Digital Potentiometer |
| DS1882E-050 | 制造商:Maxim Integrated Products 功能描述:DUAL NV +/-5V AUDIO POT TSSOP-16 - Rail/Tube |
| DS1882E-050/T&R | 制造商:Maxim Integrated Products 功能描述:DUAL NV =/-5V AUDIO POT TSSOP 16 T& - Tape and Reel |
| DS1882E-050+ | 功能描述:数字电位计 IC Dual NV Audio Taper RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| DS1882E-050+T&R | 制造商:Maxim Integrated Products 功能描述:DGTL POTENTIOMETER 64POS 45KOHM DUAL 16TSSOP - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC POT DIGIT DL LOG 50K 16TSSOP 制造商:Maxim Integrated Products 功能描述:Digital Potentiometer ICs Dual NV Audio Taper |
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