CS42L73-CWZR

Product Overview

• Category: Audio Codec
• Use: The CS42L73-CWZR is a high-performance audio codec designed for portable audio applications such as smartphones, tablets, and portable media players.
• Characteristics: It offers advanced features like low power consumption, high signal-to-noise ratio, and superior audio quality. The device integrates multiple audio functions into a single chip, reducing the overall system cost and complexity.
• Package: The CS42L73-CWZR comes in a small 32-pin QFN package, making it suitable for space-constrained designs.
• Essence: This audio codec provides high-quality audio playback and recording capabilities, enhancing the user experience in portable devices.
• Packaging/Quantity: The CS42L73-CWZR is typically sold in reels of 2500 units.

Specifications

• Audio Performance:
  • Signal-to-Noise Ratio (SNR): >100 dB
  • Total Harmonic Distortion + Noise (THD+N): <0.01%
  • Dynamic Range (DR): >100 dB
• Power Supply:
  • Voltage Range: 2.5V to 3.6V
  • Power Consumption: <10 mW
• Interfaces:
  • I2S, PCM, and TDM digital audio interfaces
  • SPI control interface
  • GPIO pins for additional functionality
• Audio Features:
  • Stereo headphone and line outputs
  • Microphone input with integrated preamp
  • Digital volume control
  • Integrated audio filters and equalizers

Pin Configuration

The CS42L73-CWZR has a total of 32 pins. Here is a brief overview of the pin functions:

1. VDDIO: Digital power supply voltage
2. VDD: Analog power supply voltage
3. GND: Ground
4. SDIN: Serial data input
5. SDOUT: Serial data output
6. SCLK: Serial clock input
7. LRCLK: Left/right channel clock input
8. MCLK: Master clock input
9. RESET: Reset control input
10. HP_L: Left headphone output
11. HP_R: Right headphone output
12. LINEOUTL: Left line output
13. LINEOUTR: Right line output
14. MICBIAS: Microphone bias voltage
15. MIC_IN: Microphone input 16-32. Reserved

Functional Features

• High-quality audio playback and recording capabilities
• Low power consumption for extended battery life
• Integrated audio filters and equalizers for enhanced sound quality
• Digital volume control for precise audio level adjustment
• Multiple digital audio interfaces for flexible connectivity options
• GPIO pins for additional functionality and customization

Advantages and Disadvantages

Advantages: - Superior audio quality with high signal-to-noise ratio and low distortion - Integration of multiple audio functions reduces system cost and complexity - Small package size suitable for space-constrained designs - Low power consumption extends battery life in portable devices

Disadvantages: - Limited pin count may restrict the number of external components that can be connected - May require additional external components for certain applications

Working Principles

The CS42L73-CWZR operates by converting analog audio signals into digital data using its integrated ADC (Analog-to-Digital Converter). It then processes the digital audio data using various filters, equalizers, and other audio enhancement techniques. The processed audio is then converted back to analog signals using the integrated DAC (Digital-to-Analog Converter) and sent to the output channels.

Application Field Plans

The CS42L73-CWZR is widely used in portable audio devices such as smartphones, tablets, portable media players, and Bluetooth speakers. Its high-quality audio capabilities make it suitable for applications where audio playback and recording are critical, providing an enhanced user experience.

Alternative Models

• CS42L72-CWZR: Similar audio codec with slightly different specifications
• CS42L71-CWZR: Lower-cost version with reduced features
• CS42L70-CWZR: Entry-level audio codec with basic functionality

These alternative models offer varying levels of performance and cost to cater to different application requirements.

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