PCM1865QDBTRQ1

Product Overview

Category: Integrated Circuit (IC)

Use: The PCM1865QDBTRQ1 is a high-performance audio analog-to-digital converter (ADC) designed for automotive applications. It provides high-quality audio conversion from analog to digital signals.

Characteristics: - High-resolution audio conversion - Low power consumption - Automotive-grade reliability and durability - Compact package size - Wide operating temperature range

Package: The PCM1865QDBTRQ1 comes in a small, surface-mount package, making it suitable for space-constrained automotive applications.

Essence: The essence of the PCM1865QDBTRQ1 lies in its ability to accurately convert analog audio signals into digital format while maintaining high fidelity and low distortion.

Packaging/Quantity: The PCM1865QDBTRQ1 is typically sold in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Resolution: Up to 24-bit
• Sampling Rate: Up to 192 kHz
• Signal-to-Noise Ratio (SNR): >100 dB
• Total Harmonic Distortion (THD): <0.01%
• Power Supply Voltage: 3.3 V
• Operating Temperature Range: -40°C to +105°C

Detailed Pin Configuration

The PCM1865QDBTRQ1 has a total of 32 pins. Here is a detailed pin configuration:

1. VCC: Power supply voltage input
2. GND: Ground reference
3. MICBIAS: Bias voltage for microphone inputs
4. MIC1P/MIC1N: Differential microphone input 1
5. MIC2P/MIC2N: Differential microphone input 2
6. MIC3P/MIC3N: Differential microphone input 3
7. MIC4P/MIC4N: Differential microphone input 4
8. MIC5P/MIC5N: Differential microphone input 5
9. MIC6P/MIC6N: Differential microphone input 6
10. MIC7P/MIC7N: Differential microphone input 7
11. MIC8P/MIC8N: Differential microphone input 8
12. MICBIAS2: Bias voltage for microphone inputs 2-8
13. VREF: Reference voltage output
14. AVDD: Analog power supply voltage input
15. DVDD: Digital power supply voltage input
16. BCLK: Bit clock input
17. LRCLK: Left/right clock input
18. SDIN: Serial data input
19. SDOUT: Serial data output
20. MCLK: Master clock input

Functional Features

• High-resolution audio conversion: The PCM1865QDBTRQ1 supports up to 24-bit resolution, ensuring accurate and detailed audio conversion.
• Low power consumption: It is designed to operate efficiently with low power consumption, making it suitable for automotive applications where power efficiency is crucial.
• Automotive-grade reliability and durability: The IC is built to withstand the harsh conditions of automotive environments, ensuring reliable performance over an extended period.
• Flexible input options: The PCM1865QDBTRQ1 provides eight differential microphone inputs, allowing for versatile audio input configurations.
• Integrated bias voltage generation: The device includes built-in bias voltage generation for microphone inputs, simplifying the design and reducing external component requirements.

Advantages and Disadvantages

Advantages: - High-resolution audio conversion for superior sound quality - Low power consumption for energy-efficient operation - Automotive-grade reliability ensures durability in harsh environments - Versatile input options for flexible audio configurations - Integrated bias voltage generation reduces external component count

Disadvantages: - Limited to automotive applications, may not be suitable for other industries - Higher cost compared to lower-end audio ADCs

Working Principles

The PCM1865QDBTRQ1 operates by receiving analog audio signals from the microphone inputs. It then converts these analog signals into digital format using a high-resolution ADC. The converted digital audio data is output through the serial data output pin.

The device incorporates various internal circuits and algorithms to ensure accurate conversion with minimal distortion and noise. It also includes features such as oversampling and digital filtering to enhance the audio quality further.

Detailed Application Field Plans

The PCM1865QDBTRQ1 is primarily designed for automotive applications that require high-quality audio conversion. Some specific application fields include:

1. In-car entertainment systems: The IC can be used in car audio systems to convert analog audio signals from microphones or other sources into digital format for processing and playback.
2. Hands-free communication systems: It can be utilized in hands-free calling systems, enabling clear and accurate voice capture for improved communication quality.
3. Automotive sound analysis: The PCM1865QDBTRQ1 can be employed