PCM1802DBG4

Product Overview

• Category: Analog-to-Digital Converter (ADC)
• Use: Converts analog audio signals into digital format
• Characteristics: High-resolution, low-power consumption, small package size
• Package: DBG4 package
• Essence: Provides accurate and high-quality digital conversion of analog audio signals
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Resolution: Up to 24 bits
• Sampling Rate: Up to 96 kHz
• Signal-to-Noise Ratio: >100 dB
• Total Harmonic Distortion: <0.001%
• Power Supply Voltage: 3.3 V
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The PCM1802DBG4 has a total of 20 pins. Here is the detailed pin configuration:

1. VCC: Power supply voltage input
2. GND: Ground reference
3. BCK: Bit clock input
4. LRCK: Left/right clock input
5. DIN: Serial data input
6. MUTE: Mute control input
7. DEEMPH: De-emphasis control input
8. FLT: Digital filter selection input
9. DEMP: De-emphasis selection input
10. DGND: Digital ground reference
11. AGND: Analog ground reference
12. AVCC: Analog power supply voltage input
13. AINL: Analog left channel input
14. AINR: Analog right channel input
15. DVCC: Digital power supply voltage input
16. DO: Serial data output
17. DCLK: Serial data clock output
18. DOUT: Serial data output
19. FS: Frame synchronization output
20. NC: No connection

Functional Features

• High-resolution audio conversion
• Low power consumption
• Integrated digital filters for enhanced audio quality
• Support for de-emphasis and mute control
• Flexible clocking options for compatibility with various systems
• Robust protection circuitry against voltage fluctuations and noise

Advantages and Disadvantages

Advantages: - Accurate and high-quality audio conversion - Low power consumption for energy-efficient designs - Small package size for space-constrained applications - Versatile functionality with support for various audio features

Disadvantages: - Limited maximum sampling rate compared to some higher-end ADCs - Requires external components for complete audio signal processing

Working Principles

The PCM1802DBG4 operates by receiving analog audio signals through its analog inputs (AINL and AINR). These signals are then converted into digital format using a high-resolution ADC. The digital output is provided through the serial data output pins (DO, DCLK, DOUT), while the frame synchronization output (FS) ensures proper timing alignment.

The device also incorporates digital filters to enhance the audio quality and supports additional features like de-emphasis and mute control. The PCM1802DBG4 requires appropriate power supply voltages (VCC, AVCC, DVCC) for operation and proper grounding (GND, DGND, AGND) to maintain signal integrity.

Detailed Application Field Plans

The PCM1802DBG4 finds applications in various fields, including:

1. Professional Audio Recording: Used in audio interfaces, mixers, and recorders to capture high-quality analog audio signals.
2. Consumer Electronics: Integrated into soundbars, home theater systems, and portable audio devices for accurate audio reproduction.
3. Automotive Audio Systems: Enables precise digitization of analog audio signals in car audio systems for improved sound quality.
4. Musical Instruments: Incorporated into electronic musical instruments to convert analog audio from microphones or pickups into digital format.
5. Telecommunications: Utilized in voice communication systems to convert analog voice signals into digital data for transmission.

Detailed and Complete Alternative Models

1. PCM1802E: Similar specifications and features, available in a different package (SSOP)
2. PCM1804: Higher resolution (up to 32 bits) ADC with similar functionality
3. PCM186x: Family of ADCs with integrated digital processing features for advanced audio applications

(Note: This is not an exhaustive list; alternative models may vary based on specific requirements and availability)

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