仕様
| 属性 | 値 |
| Package / Case | Tube |
| Part Status | Active |
| Type | Stereo Audio |
| Data Interface | USB |
| Resolution(Bits) | 16 b |
| Number of AD Cs / DA Cs | 2 / 2 |
| Sigma Delta | Yes |
| S / N Ratio AD Cs / DA Cs(db)Typ | 89 / 96 |
| Dynamic Range AD Cs / DA Cs(db)Typ | 89 / 93 |
| Voltage - Supply, Analog | 3.1V ~ 3.5V |
| Voltage - Supply, Digital | 3.1V ~ 3.5V |
| Operating Temperature | -25°C ~ 85°C |
| Mounting Type | Surface Mount |
概要
Description
The PCM2906CDB is a stereo audio codec with a USB interface, developed by Texas Instruments. It serves as a bridge between a computer's USB port and an analog audio system, enabling audio data transfer in both directions. The device integrates an analog-to-digital converter (ADC) and a digital-to-analog converter (DAC), allowing it to process audio for both recording and playback.
The PCM2906CDB supports full-duplex operation and provides a 16-bit resolution with sample rates up to 48 kHz, delivering high-quality audio performance. It is USB 1.1 compliant and requires no additional drivers for standard use, ensuring easy integration with various operating systems. The chip also includes features like a built-in clock generator, a USB protocol controller, and an on-chip voltage regulator, minimizing the need for external components.
Widely used in applications such as USB microphones, headsets, and audio interfaces, the PCM2906CDB offers a cost-effective solution for integrating USB audio functionality into consumer electronics and professional audio devices.
The PCM2906CDB supports full-duplex operation and provides a 16-bit resolution with sample rates up to 48 kHz, delivering high-quality audio performance. It is USB 1.1 compliant and requires no additional drivers for standard use, ensuring easy integration with various operating systems. The chip also includes features like a built-in clock generator, a USB protocol controller, and an on-chip voltage regulator, minimizing the need for external components.
Widely used in applications such as USB microphones, headsets, and audio interfaces, the PCM2906CDB offers a cost-effective solution for integrating USB audio functionality into consumer electronics and professional audio devices.
Equivalent
The PCM2906CDB is a TI USB stereo audio codec. Equivalent products include:
1. PCM2906C from Texas Instruments (same family)
2. CM108B from C-Media (USB audio codec)
3. CS4344 paired with a USB interface chip, from Cirrus Logic
4. SA9023 paired with a DAC like ES9023, from Sabre
5. AK4430 with USB interface, from AKM
These alternatives vary in features, so ensure compatibility with your specific requirements.
1. PCM2906C from Texas Instruments (same family)
2. CM108B from C-Media (USB audio codec)
3. CS4344 paired with a USB interface chip, from Cirrus Logic
4. SA9023 paired with a DAC like ES9023, from Sabre
5. AK4430 with USB interface, from AKM
These alternatives vary in features, so ensure compatibility with your specific requirements.
Features
The PCM2906CDB is a stereo audio codec with integrated USB interface, designed for audio data conversion in personal computers. Key features include:
1. USB Interface: Supports USB 1.1 with full-speed operation and compliant with USB audio class specifications.
2. Stereo ADC and DAC: Provides high-quality stereo analog-to-digital (ADC) and digital-to-analog (DAC) conversion.
3. Sampling Rates: Supports multiple sampling frequencies, including 48 kHz, 44.1 kHz, and lower rates such as 32 kHz, 24 kHz, and 16 kHz.
4. Self-Powered: Operates without the need for an external power supply, drawing power directly from the USB connection.
5. Integrated Features: Includes features such as a microphone input, line input, and headphone/line output.
6. Compact Package: Available in a space-saving SSOP (Shrink Small Outline Package), making it suitable for compact applications.
7. Low Power Consumption: Designed for efficient power usage to extend battery life in portable applications.
8. Plug-and-Play: Simplifies installation and use with automatic driver recognition by operating systems.
These features make the PCM2906CDB ideal for applications requiring high-quality audio conversion and USB connectivity.
1. USB Interface: Supports USB 1.1 with full-speed operation and compliant with USB audio class specifications.
2. Stereo ADC and DAC: Provides high-quality stereo analog-to-digital (ADC) and digital-to-analog (DAC) conversion.
3. Sampling Rates: Supports multiple sampling frequencies, including 48 kHz, 44.1 kHz, and lower rates such as 32 kHz, 24 kHz, and 16 kHz.
4. Self-Powered: Operates without the need for an external power supply, drawing power directly from the USB connection.
5. Integrated Features: Includes features such as a microphone input, line input, and headphone/line output.
6. Compact Package: Available in a space-saving SSOP (Shrink Small Outline Package), making it suitable for compact applications.
7. Low Power Consumption: Designed for efficient power usage to extend battery life in portable applications.
8. Plug-and-Play: Simplifies installation and use with automatic driver recognition by operating systems.
These features make the PCM2906CDB ideal for applications requiring high-quality audio conversion and USB connectivity.
Pinout
The PCM2906CDB is a USB stereo audio codec with a 28-pin SSOP (Shrink Small Outline Package) configuration. It is designed for audio applications, enabling USB connectivity for audio devices. The key functions of the PCM2906CDB include:
1. USB Interface: Provides USB 1.1 compliant audio communication.
2. Stereo ADC and DAC: Supports stereo audio input and output with 16-bit resolution.
3. S/PDIF Output: Features a digital audio output interface.
4. Line and Microphone Inputs: Supports line-level and microphone audio inputs.
5. Headphone and Line Outputs: Drives stereo headphone and line-level outputs.
The PCM2906CDB is suitable for applications such as USB speakers, USB headsets, and other USB audio peripherals. Its compact SSOP-28 package makes it easy to integrate into various designs.
1. USB Interface: Provides USB 1.1 compliant audio communication.
2. Stereo ADC and DAC: Supports stereo audio input and output with 16-bit resolution.
3. S/PDIF Output: Features a digital audio output interface.
4. Line and Microphone Inputs: Supports line-level and microphone audio inputs.
5. Headphone and Line Outputs: Drives stereo headphone and line-level outputs.
The PCM2906CDB is suitable for applications such as USB speakers, USB headsets, and other USB audio peripherals. Its compact SSOP-28 package makes it easy to integrate into various designs.
Manufacturer
The manufacturer of the PCM2906CDB is Texas Instruments. Texas Instruments, often abbreviated as TI, is an American technology company that designs and manufactures semiconductors and various integrated circuits. TI is known for producing a wide range of electronic components, including analog chips, digital signal processors, and embedded processors, which are used in a variety of electronic devices. The company serves numerous industries such as automotive, industrial, consumer electronics, communications equipment, and enterprise systems. Texas Instruments is recognized for its innovation in the semiconductor industry and has a significant presence worldwide.
Application
The PCM2906CDB is a USB audio codec often used in areas including consumer electronics, computer peripherals, and audio accessories. It facilitates high-quality audio input and output for devices such as USB microphones, headsets, sound cards, and audio interfaces. It's also employed in music production equipment, teleconferencing systems, and gaming headsets, offering seamless integration with digital audio workstations and enhancing audio performance. Its plug-and-play nature makes it suitable for use in portable audio solutions and DIY audio projects.
Package
The PCM2906CDB is available in a 28-pin SSOP (Shrink Small Outline Package) form factor, which is designed for compactness and efficiency in electronic circuits.
