參數(shù)資料
型號(hào)： DS1882
廠商： Maxim Integrated Products, Inc.
元件分類： 數(shù)字電位計(jì)
英文描述： Dual Log Audio Digital Potentiometer
中文描述： 雙路、對(duì)數(shù)音量調(diào)節(jié)電位器
文件頁(yè)數(shù)： 1/15頁(yè)
文件大?。?/td> 251K
代理商： DS1882
General Description
The DS1882 is a dual, nonvolatile (NV) digital poten-
tiometer designed to operate in audio systems that
accomodate up to ±7V signal levels. The potentiometer
settings can be stored in EEPROM so that they are
retained when the power is cycled. The DS1882 has
separate supplies for the potentiometers (V
CC
) and the
communication circuitry (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 DS1882 is also designed to mini-
mize crosstalk, and the two digital potentiometers pro-
vide 0.5dB channel-to-channel matching 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 DS1882 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
o
Dual, Audio Log Taper Potentiometers
o
Low THD+N and Crosstalk
o
±7V Analog Supply (Independent of Digital
Supply)
o
5V Digital Supply
o
Potentiometer Settings Configurable as
Nonvolatile or Volatile
o
Zero-Crossing Detector Eliminates Switching
Noise
o
Two User-Configurable Attenuation Options
o
Configuration Option 1: 63 Positions Provide 1dB
Attenuation Steps from 0dB to -62dB Plus Mute
o
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
o
I
2
C*-Compatible Serial Interface
o
Three Address Pins Allow Up to 8 Devices on
I
2
C Bus
o
45k
Potentiometer End-to-End Resistance
o
Industrial Temperature Range (-40°C to +85°C)
o
16-Pin TSSOP or SO Package
D
Dual Log Audio 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
V-
A1
A2
GND
TOP VIEW
CE
W1
H1
L0
W0
9
8
L1
H0
A0
TSSOP/SO
DS1882
+
Pin Configuration
Rev 0; 6/06
+
Denotes lead-free package.
Ordering Information
PART
TEMP
RANGE
VERSION
(k
)
PIN-
PACKAGE
DS1882E-050+
-40°C to +85°C
45
16 TSSOP
(173 mils)
DS1882E-050+T&R -40°C to +85°C
45
16 TS S O P
( 173 m s)
Tap e- and Reel
DS1882Z-050+
-40°C to +85°C
45
16 S O
( 150 m s)
DS1882Z-050+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
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:數(shù)字電位計(jì) 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(chǔ)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
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
DS1882E-050+T&R 功能描述:數(shù)字電位計(jì) 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(chǔ)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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