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參數(shù)資料
| 型號： | DS1881Z-045T |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | Dual NV Audio Taper Digital Potentiometer |
| 中文描述： | 錐形雙非易失數(shù)字電位器音頻 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 234K |
| 代理商： | DS1881Z-045T |
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 (V
CC
) and the communication circuit-
ry (V
DD
). 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
I
2
C*-Compatible Serial Interface
Three Address Pins Allow Up to 8 Devices on
I
2
C Bus
45k
Potentiometer End-to-End Resistance
Industrial Temperature Range (-40°C to +85°C)
16-Pin TSSOP or SO Package
D
Dual NV Audio Taper Digital Potentiometer
______________________________________________
Maxim Integrated Products
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.
1
16
15
14
13
12
11
10
1
2
3
4
5
6
7
V
DD
V
CC
SCL
SDA
N.C.
A1
A2
GND
TOP VIEW
CE
W1
H1
L0
W0
9
8
L1
H0
A0
TSSOP/SO
DS1881
+
Pin Configuration
Rev 0; 1/06
+
Denotes lead-free package.
Ordering Information
PART
TEMP
RANGE
VERSION
(k
)
PIN-
PACKAGE
DS1881E-045+
-40°C to +85°C
45
16 TSSOP
(173 mils)
DS1881E-045+T&R -40°C to +85°C
45
16 TS S OP
( 173 m s)
Tap e- and Reel
DS1881Z-045+
-40°C to +85°C
45
16 S O
( 150 m s)
DS1881Z-045+T&R -40°C to +85°C
45
16 S O
( 150 m s)
Tap e- and Reel
Purchase of I
2
C components from Maxim Integrated Products, Inc., or one of its sublicensed Associated Companies, conveys a
license under the Philips I
2
C Patent Rights to use these components in an I
2
C system, provided that the system conforms to the I
2
C
Standard Specification as defined by Philips.
Typical Operating Circuit appears at end of data sheet.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1881Z-050 | 制造商:Maxim Integrated Products 功能描述:DUAL NV 45K AUDIO POT SOIC 16 - Rail/Tube |
| DS1881Z-050/T&R | 制造商:Maxim Integrated Products 功能描述:DUAL NV 45K AUDIO POT SOIC-16 TRL - Tape and Reel |
| DS1881Z-050+ | 功能描述:數(shù)字電位計 IC Dual NV Audio Taper RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| DS1881Z-050+T&R | 制造商:Maxim Integrated Products 功能描述:DGTL POTENTIOMETER 64POS 45KOHM DUAL 16SOIC N - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC DGTL POT NV 2CH 45K 16-SOIC |
| DS1881Z-050+T&R | 功能描述:數(shù)字電位計 IC Dual NV Audio Taper RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
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