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Name: MCP4631T-104E/ST
Brand: Microchip Technology
SKU: MCP4631T-104E/ST
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Microchip Technology MCP4631T-104E/ST

Part No.:: MCP4631T-104E/ST

Manufacturer:: Microchip Technology

Package:: 14-TSSOP (0.173, 4.40mm Width)

Datasheet:: MCP4631T-104E/ST.pdf

Description:: IC DGT POT 100KOHM 129TP 14TSSOP

In Stock:: 2822

Quantity:: Add To Cart

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MCP4631T-104E/ST Specifications

Package/Case:
14-TSSOP (0.173, 4.40mm Width)
Packaging:
Tape & Reel (TR)
Series:
-
ProductStatus:
Active
Taper:
Linear
Configuration:
Potentiometer
NumberofCircuits:
2
NumberofTaps:
129
Resistance(Ohms):
100k
Interface:
I²C
MemoryType:
Volatile
Voltage-Supply:
1.8V ~ 5.5V
Features:
Selectable Address
Tolerance:
±20%
TemperatureCoefficient(Typ):
150ppm/°C
MountingType:
Surface Mount
OperatingTemperature:
-40°C ~ 125°C

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MCP4631T-104E/ST information

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MCP4631T-104E/ST Application Introduction

MCP4631T-104E/ST is a digital potentiometer chip manufactured by Microchip Technology, widely used in various electronic applications for digital resistance adjustment.

Application Scenario:

In audio systems, MCP4631T-104E/ST can be utilized to control volume levels digitally, offering precise adjustment capabilities.

Circuit Design:

To design a volume control system using MCP4631T-104E/ST, follow these steps:

1. Connection to Microcontroller:

Connect the SPI interface of MCP4631T-104E/ST to the microcontroller, such as pin PA0 for MOSI, pin PA1 for MISO, and pin PA2 for SCK. Ensure proper configuration of SPI communication in the firmware.

2. Output Control:

Connect the wiper terminal of MCP4631T-104E/ST to the audio circuit for volume control. Utilize the resistance terminal connections to adjust the volume digitally.

3. User Interface:

Integrate a user interface, such as a rotary encoder or push buttons, to control the volume setting. Use GPIO pins of the microcontroller to interface with the user input devices.

4. Power Management:

Ensure stable power supply to MCP4631T-104E/ST and the microcontroller. Utilize voltage regulators and decoupling capacitors to minimize noise and ensure reliable operation.

5. Signal Integrity:

To maintain signal integrity, keep signal traces short and away from noise sources. Employ proper grounding techniques and shielding if necessary to reduce interference.

Considerations:

When designing the circuit, consider the following:

- Resistance Accuracy: Verify the resistance tolerance and linearity of MCP4631T-104E/ST for precise volume control.

- EMI Mitigation: Design the circuit layout to minimize electromagnetic interference, especially in audio applications sensitive to noise.

- Temperature Effects: Consider temperature drift and its impact on resistance values, especially in environments with varying temperatures.

- System Compatibility: Ensure compatibility with the microcontroller's SPI interface and adjust firmware accordingly for seamless integration.

- Testing and Calibration: Test the volume control system thoroughly and calibrate as needed to achieve desired performance and accuracy.

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6. What is the process for return or replacement of MCP4631T-104E/ST?

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(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

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