PCM2906DBG4

Overview

Category: Integrated Circuit (IC)

Use: Audio Codec

Characteristics: - High-quality stereo audio codec - Supports USB 2.0 full-speed protocol - Provides analog-to-digital and digital-to-analog conversion - Suitable for various audio applications

Package: SSOP-28

Essence: The PCM2906DBG4 is a high-performance audio codec that enables the conversion of analog audio signals to digital format and vice versa. It is designed for use in audio applications that require high-quality sound reproduction.

Packaging/Quantity: The PCM2906DBG4 is available in an SSOP-28 package. The quantity may vary depending on the supplier.

Specifications

• Resolution: 16-bit
• Sampling Rate: Up to 48 kHz
• Interface: USB 2.0 Full-Speed
• Analog Inputs: Stereo Line-In, Microphone-In
• Analog Outputs: Stereo Line-Out, Headphone-Out
• Digital I/O: I2S Interface
• Power Supply: 5V

Pin Configuration

The PCM2906DBG4 has a total of 28 pins. Here is the detailed pin configuration:

1. VDD - Power supply voltage
2. GND - Ground
3. MICBIAS - Bias voltage for microphone input
4. MICINL - Microphone input (left channel)
5. MICINR - Microphone input (right channel)
6. LINEINL - Line input (left channel)
7. LINEINR - Line input (right channel)
8. AGND - Analog ground
9. AVDD - Analog power supply voltage
10. BCLK - Bit clock for I2S interface
11. WCLK - Word clock for I2S interface
12. DIN - Data input for I2S interface
13. DOUT - Data output for I2S interface
14. LRCK - Left/right clock for I2S interface
15. SDA - Serial data line for USB interface
16. SCL - Serial clock line for USB interface
17. VBUS - USB bus voltage
18. ID - USB identification pin
19. GND - Ground
20. AGND - Analog ground
21. LINEOUTL - Line output (left channel)
22. LINEOUTR - Line output (right channel)
23. HPLOUT - Headphone output (left channel)
24. HPROUT - Headphone output (right channel)
25. AVDD - Analog power supply voltage
26. DVDD - Digital power supply voltage
27. GND - Ground
28. VDD - Power supply voltage

Functional Features

• USB audio streaming capability
• On-chip digital-to-analog converter (DAC) and analog-to-digital converter (ADC)
• Low power consumption
• Built-in headphone amplifier
• Supports various audio formats

Advantages and Disadvantages

Advantages: - High-quality audio conversion - USB 2.0 compatibility - Compact package size - Low power consumption

Disadvantages: - Limited to 16-bit resolution - Single-ended analog inputs

Working Principles

The PCM2906DBG4 operates by receiving analog audio signals through its inputs, converting them into digital format using the built-in ADC. The digital audio data is then processed and can be streamed via the USB interface. On the receiving end, the digital audio data is converted back to analog format using the on-chip DAC and can be outputted through the various output channels.

Detailed Application Field Plans

The PCM2906DBG4 is suitable for a wide range of audio applications, including but not limited to: - USB audio interfaces - Portable audio devices - Audio recording systems - Multimedia speakers - Headphone amplifiers

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the PCM2906DBG4 are: - PCM2900C - PCM2707 - CS4344 - WM8731

These alternative models can be considered based on specific requirements and design considerations.

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