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參數資料
| 型號： | MAX5486 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Stereo Volume Control with Pushbutton Interface |
| 中文描述： | 立體聲音量控制，提供按鍵接口 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 232K |
| 代理商： | MAX5486 |
General Description
The MAX5486 dual 40k
Ω
logarithmic taper volume con-
trol features a debounced pushbutton up/down interface
that controls volume and balance in audio applications.
Each potentiometer has 32 log-spaced tap points with a
buffered wiper output to replace mechanical potentiome-
ters. An integrated bias generator provides the required
((V
DD
+ V
SS
) / 2) bias voltage, eliminating the need for
costly external op-amp circuits in unipolar audio applica-
tions. A mode-indicator LED output indicates volume or
balance control. Five integrated LED drivers indicate vol-
ume level or balance settings, depending on the status of
the mode indicator.
Use the MAX5486 digital inputs with momentary con-
tact single-pole/single-throw (SPST) pushbutton switch-
es. Each input includes internal debounced circuitry
and a pullup resistor to V
LOGIC
.
The MAX5486 advances the wiper setting once per but-
ton push. Maxim’s proprietary SmartWiper control
eliminates the need for a microcomputer to increase the
wiper transition rate. The accelerated auto-advance
feature provides a wiper-changing rate at 4Hz for hold-
ing the control input low for more than 250ms and at
8Hz after 500ms and then at 11Hz after 1000ms (see
Table 2).
All of the MAX5486’s pushbutton inputs are debounced.
The mute input allows a single pushbutton to change
between volume control and the -90dB (typ) mute set-
ting. The mode input toggles between volume and bal-
ance control. The click-and-pop suppression feature
minimizes the audible noise generated by wiper transi-
tions. The typical total harmonic distortion plus noise
(THD+N) for the device is 0.003%. The MAX5486 pro-
vides a nominal temperature coefficient of 35ppm/°C
end-to-end and 5ppm/°C ratiometrically and a nominal
resistance of 40k
Ω
per potentiometer. The MAX5486 is
available in a 24-pin TSSOP package and is specified
for operation over the -40°C to +85°C extended temper-
ature range.
Applications
Home-Theater Speakers
Desktop Speakers
Portable Media Players
Docking Stations
Automotive Rear-Seat Multimedia
Features
Debounced Pushbutton Interface
SmartWiper Control Advances Wiper Rate
Low-Power Wiper Buffers Provide 0.003% THD+N
Bias Generator Eliminates External Op Amps
Five-Segment LED Volume/Balance Indicator
Clickless Switching
Logarithmic Taper Volume Control with (31)
2dB Steps
Single +2.7V to +5.5V or Dual ±2.7V Supply
Voltage Operation
Power-On Reset to -12dBFS Wiper Position
MUTE
Function Toggles to 90dB (typ)
Low 1μA Shutdown Supply Current
40k
Ω
End-to-End Fixed Resistance Value
Small, 24-Pin TSSOP Package
M
Stereo Volume Control with Pushbutton
Interface
________________________________________________________________ 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
19-0672; Rev 0; 11/06
Ordering Information
V
DD
V
SS
(V
DD +
V
SS
) / 2
(V
DD +
V
SS
) / 2
V
LOGIC
V
PEAK
HR
L
R
WR
SHDN
LEFT INPUT
RIGHT INPUT
MODEIND
MAX9761
L
L
HL
W
L
V
LOGIC
LEDIND4
LEDIND3
LEDIND0
GND
MUTE
LEDIND1
LEDIND2
BIAS
BIASCAP
MAX5486
UP/BALL DN/BALR
MODE
1M
Ω
(V
DD +
V
SS
) / 2
V
PEAK
Typical Operating Circuit
PART
TEMP RANGE
PIN-
PACKAGE
PKG
CODE
MAX5486EUG+
-40°C to +85°C
24 TSSOP
U24-1
SmartWiper is a trademark of Maxim Integrated Products, Inc.
+Denotes lead-free package.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX5486EUG+ | 功能描述:數字電位計 IC Stereo Vol Control w/Pushbutton Int RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數:35 PPM / C 容差:25 % POT 數量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數字接口: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 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| MAX5486EUG+T | 功能描述:數字電位計 IC Stereo Vol Control w/Pushbutton Int RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數:35 PPM / C 容差:25 % POT 數量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數字接口: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 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| MAX5487ETE | 制造商:Maxim Integrated Products 功能描述:DUAL 256-TAP SPI 10K DIGITAL POTENTIOMETER - Rail/Tube |
| MAX5487ETE#G16 | 功能描述:數字電位計 IC RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數:35 PPM / C 容差:25 % POT 數量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數字接口: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 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| MAX5487ETE#TG16 | 功能描述:數字電位計 IC RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數:35 PPM / C 容差:25 % POT 數量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數字接口: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 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
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