DS1804Z-050+T&R

Product Overview

Category

The DS1804Z-050+T&R belongs to the category of digital potentiometers.

Use

It is primarily used for electronic circuitry and system applications that require variable resistance adjustments.

Characteristics

• Digital control interface
• Non-volatile memory
• Low power consumption
• Wide operating voltage range
• High resolution

Package

The DS1804Z-050+T&R is available in a small surface-mount package, making it suitable for compact designs.

Essence

The essence of the DS1804Z-050+T&R lies in its ability to replace traditional mechanical potentiometers with a digital alternative, providing precise and reliable resistance adjustments.

Packaging/Quantity

This product is typically packaged on tape and reel (T&R) and is available in various quantities depending on the manufacturer's specifications.

Specifications

• Resistance Range: 50Ω
• Resolution: 64 taps
• Operating Voltage: 2.7V to 5.5V
• Temperature Range: -40°C to +85°C
• Interface: Serial (3-wire)

Detailed Pin Configuration

The DS1804Z-050+T&R has the following pin configuration:

1. VCC: Power supply voltage
2. GND: Ground reference
3. CS: Chip select input
4. SCLK: Serial clock input
5. SDI: Serial data input
6. SDO: Serial data output
7. U/D: Up/Down control input
8. H/L: High/Low control input
9. W: Wiper terminal
10. A: Terminal A
11. B: Terminal B

Functional Features

• Non-volatile memory allows the DS1804Z-050+T&R to retain its settings even when power is removed.
• The digital control interface enables precise and repeatable resistance adjustments.
• High resolution of 64 taps ensures fine-grained control over resistance values.
• Wide operating voltage range allows for compatibility with various electronic systems.
• Low power consumption makes it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages

• Precise and reliable resistance adjustments
• Non-volatile memory retains settings
• Compact surface-mount package
• Low power consumption

Disadvantages

• Limited resistance range (50Ω)
• Requires a serial interface for control

Working Principles

The DS1804Z-050+T&R utilizes a combination of digital control signals and non-volatile memory to adjust the resistance. When the appropriate control signals are applied, the internal wiper position changes, resulting in a different resistance value between terminals A and B. The non-volatile memory ensures that the resistance setting is retained even when power is removed.

Detailed Application Field Plans

The DS1804Z-050+T&R finds applications in various fields, including:

1. Audio equipment: Volume control circuits in amplifiers, mixers, and audio interfaces.
2. Industrial automation: Precision control of motor speed, position, or other parameters.
3. Test and measurement: Calibration and adjustment of test equipment.
4. Consumer electronics: Control of brightness, contrast, or color balance in displays.
5. Communication systems: Variable gain control in RF amplifiers or filters.

Detailed and Complete Alternative Models

1. DS1804Z-010+T&R: 10Ω resistance range, otherwise similar specifications.
2. DS1804Z-100+T&R: 100Ω resistance range, otherwise similar specifications.
3. DS1804Z-500+T&R: 500Ω resistance range, otherwise similar specifications.

These alternative models provide different resistance ranges to suit specific application requirements while maintaining similar functionality and characteristics.

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