PCM2906CDBR
Product Overview
Category: Integrated Circuit (IC)
Use: PCM2906CDBR is a stereo audio codec with USB interface. It is designed for various audio applications such as USB speakers, headphones, and audio adapters.
Characteristics: - High-quality audio performance - Low power consumption - Compact size - Easy integration with USB devices
Package: PCM2906CDBR comes in a small outline package (SOIC) with 28 pins.
Essence: The essence of PCM2906CDBR lies in its ability to convert analog audio signals into digital format and vice versa, while providing seamless integration with USB devices.
Packaging/Quantity: PCM2906CDBR is typically sold in reels containing 2500 units per reel.
Specifications
- Audio Resolution: Up to 16-bit
- Sampling Rate: Up to 48 kHz
- Interface: USB 2.0 Full Speed
- Power Supply: 5V (USB bus-powered)
- Digital-to-Analog Converter (DAC): 2 channels
- Analog-to-Digital Converter (ADC): 2 channels
- Signal-to-Noise Ratio (SNR): >90 dB
- Total Harmonic Distortion (THD): <0.01%
Pin Configuration
The PCM2906CDBR has the following pin configuration:
- VDD - Power supply voltage
- GND - Ground
- AGND - Analog ground
- AVDD - Analog power supply voltage
- VBUS - USB bus voltage
- D+ - USB data positive
- D- - USB data negative
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- LOUT - Left audio output
- ROUT - Right audio output
- LIN - Left audio input
- RIN - Right audio input
- MICBIAS - Microphone bias voltage
Functional Features
- USB audio streaming: PCM2906CDBR enables seamless audio streaming between USB devices and the connected audio system.
- Audio conversion: It converts analog audio signals to digital format for USB transmission and vice versa.
- Volume control: The integrated volume control feature allows users to adjust the audio level conveniently.
- Low power consumption: PCM2906CDBR is designed to consume minimal power, making it suitable for portable audio applications.
Advantages and Disadvantages
Advantages: - High-quality audio performance - Easy integration with USB devices - Compact size for space-constrained designs - Low power consumption
Disadvantages: - Limited audio resolution (up to 16-bit) - Sampling rate limited to 48 kHz
Working Principles
PCM2906CDBR operates by receiving analog audio signals from the input channels (LIN, RIN, and MICBIAS) and converting them into digital format using the built-in ADC. The digital audio data is then transmitted via the USB interface to a connected device. On the receiving end, it receives digital audio data from the USB interface and converts it back to analog format using the DAC. The converted analog audio signals are then available at the output channels (LOUT and ROUT).
Detailed Application Field Plans
PCM2906CDBR finds applications in various audio devices, including: - USB speakers - Headphones - Audio adapters - USB sound cards - Portable audio players
Detailed and Complete Alternative Models
- PCM2902E - Similar to PCM2906CDBR but without microphone bias voltage support.
- PCM2707 - USB audio codec with enhanced features and higher audio resolution.
- CS4344 - Stereo audio codec with USB interface and higher audio performance.
These alternative models offer different features and specifications, allowing designers to choose the most suitable option for their specific requirements.
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기술 솔루션에 PCM2906CDBR 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.
Sure! Here are 10 common questions and answers related to the application of PCM2906CDBR:
Q: What is PCM2906CDBR? A: PCM2906CDBR is a USB audio codec with a built-in USB interface, designed for audio applications in various technical solutions.
Q: What are the key features of PCM2906CDBR? A: Some key features include stereo ADC and DAC, USB 2.0 full-speed compliant interface, integrated analog PLL, and support for multiple audio formats.
Q: How can I connect PCM2906CDBR to my system? A: PCM2906CDBR can be connected to your system using its USB interface. It requires a USB connection to communicate with the host device.
Q: What audio formats does PCM2906CDBR support? A: PCM2906CDBR supports various audio formats, including 16-bit stereo audio at sample rates up to 48 kHz.
Q: Can PCM2906CDBR be used for both recording and playback? A: Yes, PCM2906CDBR can be used for both recording (ADC) and playback (DAC) purposes, making it suitable for applications like USB audio interfaces.
Q: Does PCM2906CDBR require external power supply? A: No, PCM2906CDBR is powered directly from the USB bus, eliminating the need for an external power supply.
Q: Is PCM2906CDBR compatible with Windows, Mac, and Linux operating systems? A: Yes, PCM2906CDBR is compatible with all major operating systems, including Windows, Mac, and Linux, as it uses standard USB audio drivers.
Q: Can PCM2906CDBR be used in low-power applications? A: Yes, PCM2906CDBR has a low-power mode that allows it to operate with minimal power consumption, making it suitable for battery-powered devices.
Q: What is the typical audio quality of PCM2906CDBR? A: PCM2906CDBR offers high-quality audio performance with low distortion and noise levels, providing clear and accurate sound reproduction.
Q: Are there any evaluation boards or reference designs available for PCM2906CDBR? A: Yes, Texas Instruments provides evaluation boards and reference designs for PCM2906CDBR, which can help developers quickly prototype their applications.
Please note that these answers are general and may vary depending on specific application requirements and implementation details.