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參數(shù)資料
| 型號(hào)： | MAX5457ETE+T |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 1/18頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC POT STER AUDIO TAPER 16-TQFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 接片： | 32 |
| 電阻（歐姆）： | 10k |
| 電路數(shù)： | 2 |
| 溫度系數(shù)： | 標(biāo)準(zhǔn)值 50 ppm/°C |
| 存儲(chǔ)器類型： | 易失 |
| 接口： | 2 線按鈕 |
| 電源電壓： | ±2.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-WQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 16-TQFN-EP（4x4） |
| 包裝： | 帶卷 (TR) |
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General Description
The MAX5456/MAX5457 dual, logarithmic taper digital
potentiometers feature a simple pushbutton interface
that controls volume and balance in audio applications.
Each potentiometer has 32 tap points and replaces
mechanical potentiometers. Refer to the MAX5408–
MAX5411 data sheet for SPI versions of the MAX5456/
MAX5457.
Use the MAX5456/MAX5457 digital inputs with momen-
tary contact single-pole/single-throw (SPST) pushbutton
switches. Each input includes internal debounce cir-
cuitry and a 50k
pullup resistor.
The MAX5456/MAX5457 advance the wiper setting once
per button push. Maxim’s proprietary SmartWiper con-
trol eliminates the need for a microcomputer to increase
the wiper transition rate. Holding the control input low for
more than 1s advances the wiper at a rate of 4Hz for 4s
and 16Hz per second thereafter.
The MAX5456/MAX5457 provide temperature coeffi-
cients of 50ppm/°C end-to-end and 5ppm/°C ratiomet-
ric and a nominal resistance of 10k
per potentiometer.
An integrated click/pop suppression feature minimizes
the audible noise generated by wiper transitions. The
typical total harmonic distortion plus noise (THD+N) for
these devices is 0.01%.
The MAX5457 features a 3-button interface with a
MODE input that toggles between volume- and balance-
control modes. An LED output indicates volume or bal-
ance mode. The MAX5456 features a 4-button interface
with separate inputs for up and down volume controls
and left and right balance controls.
The MAX5456/MAX5457 is available in a 16-pin QSOP
packages and specified over the extended (-40°C to
+85°C) temperature range.
Applications
Stereo Volume Control
Fading and Balancing Stereo Signals
Stereo Blending and Mixing
Features
o SmartWiper Control Provides Accelerated Wiper
Motion
o Debounced Pushbutton Interface with Internal
Pullup Resistors
o Logarithmic Taper with 2dB Steps Between Taps
o Single +2.7V to +5.5V or Dual ±2.7V Supply
Operation
o Low 0.5A Standby Supply Current
o Clickless Switching
o 10k End-to-End Fixed Resistance Value
o Mute Function to -90dB (typ)
o Power-On Reset to -12dB Wiper Position
o 32 Tap Positions for Each Wiper
o Small 16-Pin QSOP Package
MAX5456/MAX5457
Stereo Audio Taper Potentiometers
with Pushbutton Interface
EVALUATION KIT AVAILABLE
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
Ordering Information
19-3490; Rev 2; 8/12
Typical Application Circuits and Selector Guide appear at
end of data sheet.
PART
TEMP RANGE
PIN-PACKAGE
MAX5456EEE+
-40
oC to +85oC
16 QSOP
MAX5457EEE+
-40
oC to +85oC
16 QSOP
SmartWiper is a trademark of Maxim Integrated Products, Inc.
TOP VIEW
16
15
14
13
12
11
10
9
1
+
2
3
4
5
6
7
8
DN/BAL0
VDD
VLOGIC
GND
VSS
H1
L1
W1
MUTE
MAX5457
QSOP
UP/BAL1
MODE
L0
MODE_IND
H0
W0
SHDN
Pin Configurations
Pin Configurations are continued at end of data sheet.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
Note: For leaded version, contact factory.
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| DS1804U-010/T&R | IC POT TRIMMER NV 10K 8-USOP |
| SI5326B-C-GM | IC ANY-RATE MULTI/ATTEN 36-QFN |
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