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MAX5407 Datasheet(PDF) 1 Page - Maxim Integrated Products

No. de pieza MAX5407
Descripción Electrónicos  32-Tap Audio Logarithmic Taper Digital Potentiometer
Download  7 Pages
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Fabricante Electrónico  MAXIM [Maxim Integrated Products]
Página de inicio  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX5407 Datasheet(HTML) 1 Page - Maxim Integrated Products

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General Description
The MAX5407 SOT-PoT™ is a logarithmic taper digital
potentiometer with 32 tap points that has 1dB steps
between taps. This device is ideal for audio applica-
tions, such as volume control and fading/balancing
audio signals.
The MAX5407 consists of a resistor string and CMOS
switches that are digitally controlled through a simple 2-
wire serial interface. This device performs the same
function as a mechanical potentiometer. The device
has a fixed end-to-end resistance of 20k
Ω and features
zero-crossing detection to minimize the audible noise
generated by the wiper transitions.
This device has nominal resistor temperature coefficients
of 35ppm/°C end-to-end and 5ppm/°C ratiometric. The
MAX5407 is available in a space saving 8-pin SOT23
package and is guaranteed from -40°C to +85°C.
Applications
Audio Volume Control
Fading/Balancing Audio Signals
Mechanical Potentiometer Replacement
Features
o Miniature 3mm x 3mm 8-Pin SOT23 Package
o Logarithmic Taper with 1dB Steps Between Taps
o 32 Tap Positions
o Low 0.35µA Supply Current
o +2.7V to +5.5V Single-Supply Operation
o Zero-Crossing Detection to Minimize Audible
Clicks During Wiper Transitions
o Simple Up/Down 2-Wire Serial Data Interface
o Power-On Reset
Wiper Goes To Maximum Attenuation
(Lowest Tap Position)
o 20kΩ End-to-End Resistance
32-Tap Audio Logarithmic Taper
Digital Potentiometer
________________________________________________________________ Maxim Integrated Products
1
TOP VIEW
1
2
3
4
8
7
6
5
ZCEN
VDD
CS
U/D
L
W
GND
H
MAX5407
SOT23
Pin Configuration
Ordering Information
UP/DOWN
COUNTER
VDD
GND
CS
H
L
W
U/D
ZCEN
32-POSITION
DECODER
MAX5407
Functional Diagram
19-2196; Rev 0; 10/01
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.
PART
TEMP. RANGE
PIN-
PACKAGE
TOP MARK
MAX5407EKA
-40
°C to +85°C
8 SOT23
AAID
SOT-PoT is a trademark of Maxim Integrated Products, Inc.


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