MAX7423CUA+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: The MAX7423CUA+ is a high-performance, low-power, 8th-order elliptic switched-capacitor filter. It is designed for use in various audio and communication applications.

Characteristics: - High-performance: Provides excellent signal filtering capabilities. - Low-power: Consumes minimal power, making it suitable for battery-powered devices. - 8th-order elliptic filter: Offers precise frequency response and steep roll-off characteristics. - Switched-capacitor technology: Enables compact design and eliminates the need for external components.

Package: The MAX7423CUA+ is available in a small 8-pin µMAX package, which ensures space-efficient integration into electronic circuits.

Essence: The MAX7423CUA+ is an integrated circuit that provides advanced signal filtering capabilities for audio and communication systems. Its compact design and low-power consumption make it ideal for portable devices.

Packaging/Quantity: The MAX7423CUA+ is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Filter Order: 8th
• Filter Type: Elliptic
• Supply Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Input Signal Range: ±0.9V
• Passband Ripple: 0.1dB
• Stopband Attenuation: 60dB
• Package Type: 8-pin µMAX
• Package Dimensions: 3mm x 3mm

Pin Configuration

The MAX7423CUA+ features the following pin configuration:

```

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| | --| VCC OUT |-- Pin 1: VCC (Power Supply) --| GND IN- |-- Pin 2: GND (Ground) --| IN+ CLK |-- Pin 3: IN+ (Positive Input) --| FB FS |-- Pin 4: IN- (Negative Input) --| C1 C3 |-- Pin 5: CLK (Clock Input) --| C2 C4 |-- Pin 6: FB (Feedback) --| C5 C7 |-- Pin 7: FS (Filter Select) --| C6 C8 |-- Pin 8: OUT (Filtered Output) |___________| ```

Functional Features

The MAX7423CUA+ offers the following functional features:

1. High-Quality Filtering: The 8th-order elliptic filter provides precise frequency response and effectively attenuates unwanted signals.
2. Low-Power Operation: The IC consumes minimal power, making it suitable for battery-powered devices.
3. Compact Design: The switched-capacitor technology allows for a compact circuit design, saving valuable board space.
4. Easy Integration: The small 8-pin µMAX package simplifies the integration of the MAX7423CUA+ into various electronic systems.

Advantages and Disadvantages

Advantages: - Excellent signal filtering capabilities - Low-power consumption - Compact design - Easy integration into electronic circuits

Disadvantages: - Limited to audio and communication applications - Requires proper clock input for optimal performance

Working Principles

The MAX7423CUA+ utilizes switched-capacitor technology to implement an 8th-order elliptic filter. It operates by sampling the input signal at a high frequency and using capacitors to store and transfer charge. By carefully controlling the switching sequence, the IC achieves precise frequency response and steep roll-off characteristics.

Detailed Application Field Plans

The MAX7423CUA+ finds applications in various audio and communication systems, including: - Audio amplifiers - Wireless communication devices - Digital audio processors - Voice recognition systems - Telecommunication equipment

Detailed and Complete Alternative Models

1. MAX7424CUA+: Similar to the MAX7423CUA+, but with a 10th-order elliptic filter.
2. MAX7425CUA+: A lower-power version of the MAX7423CUA+ with reduced current consumption.
3. MAX7426CUA+: Provides a wider input signal range compared to the MAX7423CUA+.

These alternative models offer similar functionality and can be considered as alternatives based on specific requirements.

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