規格
| 屬性 | 價值 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| 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 | 3V ~ 3.6V |
| Voltage - Supply, Digital | 3V ~ 3.6V |
| Operating Temperature | -25°C ~ 85°C |
| Mounting Type | Surface Mount |
概述
Description
The PCM2903CDBR is an integrated circuit from Texas Instruments, designed for USB audio applications. It serves as a stereo audio codec with a built-in USB interface, facilitating direct connection to USB-enabled devices without the need for additional digital audio components. This IC is part of the PCM290x series, known for its cost-effective and compact solutions for basic audio conversion needs.
Key features of the PCM2903CDBR include support for USB 1.1 full-speed functionality, an asynchronous data transfer mode, and compliance with USB audio class specifications. It offers 16-bit stereo analog-to-digital and digital-to-analog conversion, ensuring good sound quality for general audio applications. The device incorporates features such as digital volume control, mute functionality, and an integrated clock generator, reducing the need for external components.
Its small SSOP-28 package allows for space-efficient designs, making it suitable for use in various consumer electronics, including PCs, USB headphones, and other audio peripherals. This IC simplifies the design process for developers looking to implement USB audio functionality in their products.
Key features of the PCM2903CDBR include support for USB 1.1 full-speed functionality, an asynchronous data transfer mode, and compliance with USB audio class specifications. It offers 16-bit stereo analog-to-digital and digital-to-analog conversion, ensuring good sound quality for general audio applications. The device incorporates features such as digital volume control, mute functionality, and an integrated clock generator, reducing the need for external components.
Its small SSOP-28 package allows for space-efficient designs, making it suitable for use in various consumer electronics, including PCs, USB headphones, and other audio peripherals. This IC simplifies the design process for developers looking to implement USB audio functionality in their products.
Equivalent
The PCM2903CDBR is a USB audio codec. Equivalent products might include the AKM AK4556, Cirrus Logic CS4207, or the C-Media CM108B, depending on specific requirements such as interface type, features, and performance. It's important to compare specifications closely to ensure compatibility with your design needs.
Features
The PCM2903CDBR is a USB stereo audio codec from Texas Instruments, designed for audio applications requiring high-quality sound. Key features include:
1. USB Audio Interface: Compliant with USB 2.0, supporting plug-and-play functionality without the need for additional drivers for basic audio functions.
2. ADC/DAC: Incorporates a stereo audio analog-to-digital converter (ADC) and digital-to-analog converter (DAC) with 16-bit resolution.
3. Sampling Rates: Supports multiple sampling rates including 32 kHz, 44.1 kHz, and 48 kHz for both playback and recording.
4. Integrated Features: Includes an on-chip PLL (Phase-Locked Loop), S/PDIF output, and microphone bias.
5. Signal-to-Noise Ratio (SNR): Provides a high signal-to-noise ratio, ensuring clear audio performance.
6. Low Power Consumption: Designed for efficient power usage, ideal for portable and battery-powered devices.
7. Package: Available in a small TSSOP (Thin-Shrink Small Outline Package) for space-constrained applications.
8. Application Versatility: Suitable for applications like USB headsets, docking stations, and other audio peripherals.
These features make the PCM2903CDBR a versatile choice for high-quality USB audio solutions.
1. USB Audio Interface: Compliant with USB 2.0, supporting plug-and-play functionality without the need for additional drivers for basic audio functions.
2. ADC/DAC: Incorporates a stereo audio analog-to-digital converter (ADC) and digital-to-analog converter (DAC) with 16-bit resolution.
3. Sampling Rates: Supports multiple sampling rates including 32 kHz, 44.1 kHz, and 48 kHz for both playback and recording.
4. Integrated Features: Includes an on-chip PLL (Phase-Locked Loop), S/PDIF output, and microphone bias.
5. Signal-to-Noise Ratio (SNR): Provides a high signal-to-noise ratio, ensuring clear audio performance.
6. Low Power Consumption: Designed for efficient power usage, ideal for portable and battery-powered devices.
7. Package: Available in a small TSSOP (Thin-Shrink Small Outline Package) for space-constrained applications.
8. Application Versatility: Suitable for applications like USB headsets, docking stations, and other audio peripherals.
These features make the PCM2903CDBR a versatile choice for high-quality USB audio solutions.
Pinout
The PCM2903CDBR is a USB codec manufactured by Texas Instruments. It is designed for applications requiring audio interface capabilities via USB. The PCM2903CDBR comes in a 28-pin SSOP (Shrink Small Outline Package).
Pin Count and Functions:
- Total Pins: 28
- Key Functions:
- USB Interface: Connects to a host via USB for audio data transfer.
- Audio Input/Output:
- Line In/Out: For analog audio input and output connections.
- S/PDIF Out: Provides digital audio output.
- Control and Power:
- VCC Pins: Power supply for the device.
- GND Pins: Ground connections.
- Clock and Data:
- XI/XO: Crystal oscillator pins for generating the clock.
- Miscellaneous:
- Control pins: For additional functionalities like mute and volume control.
This codec is commonly used in applications such as USB audio interfaces, sound cards, and other consumer audio equipment.
Pin Count and Functions:
- Total Pins: 28
- Key Functions:
- USB Interface: Connects to a host via USB for audio data transfer.
- Audio Input/Output:
- Line In/Out: For analog audio input and output connections.
- S/PDIF Out: Provides digital audio output.
- Control and Power:
- VCC Pins: Power supply for the device.
- GND Pins: Ground connections.
- Clock and Data:
- XI/XO: Crystal oscillator pins for generating the clock.
- Miscellaneous:
- Control pins: For additional functionalities like mute and volume control.
This codec is commonly used in applications such as USB audio interfaces, sound cards, and other consumer audio equipment.
Manufacturer
The PCM2903CDBR is manufactured by Texas Instruments Incorporated (TI). Texas Instruments is a global semiconductor design and manufacturing company that develops analog ICs and embedded processors. Founded in 1930 and headquartered in Dallas, Texas, TI is known for its innovation in electronics and technology. The company provides a wide range of products for various applications including automotive, industrial, personal electronics, communications equipment, and enterprise systems. Texas Instruments is recognized for its focus on research and development, enabling the creation of advanced technologies and solutions to meet the evolving needs of the electronics industry.
Application
The PCM2903CDBR is a versatile audio codec used in various applications due to its USB audio interface capabilities. Common areas include:
1. Consumer Electronics: Used in audio interface devices, USB speakers, and soundcards for PCs, laptops, and gaming consoles.
2. Professional Audio Equipment: Integrated into audio recording interfaces and mixing consoles for digital audio conversion.
3. Automotive Systems: Employed in car audio systems for quality sound reproduction.
4. Communication Devices: Utilized in headsets and conferencing equipment for converting digital signals to analog audio.
5. Embedded Systems: Incorporated into IoT devices and development boards requiring audio input/output functionality.
These applications leverage its plug-and-play feature, high-quality audio conversion, and USB connectivity.
1. Consumer Electronics: Used in audio interface devices, USB speakers, and soundcards for PCs, laptops, and gaming consoles.
2. Professional Audio Equipment: Integrated into audio recording interfaces and mixing consoles for digital audio conversion.
3. Automotive Systems: Employed in car audio systems for quality sound reproduction.
4. Communication Devices: Utilized in headsets and conferencing equipment for converting digital signals to analog audio.
5. Embedded Systems: Incorporated into IoT devices and development boards requiring audio input/output functionality.
These applications leverage its plug-and-play feature, high-quality audio conversion, and USB connectivity.
Package
The PCM2903CDBR is packaged in a SSOP-28 (Shrink Small Outline Package) with 28 pins. This package type is compact and suitable for surface-mount technology, commonly used for integrated circuits in audio and digital applications.
