Texas Instruments

PCM1794DB

PCM1794DB Description

The PCM1794DB is a high-performance, 24-bit digital-to-analog converter (DAC) designed for audio applications, manufactured by Texas Instruments. This DAC is part of the PCM1794 family and is housed in a 28-pin SSOP package, making it suitable for surface-mount applications. It operates with a supply voltage range of 3V to 3.6V and 5V, catering to both analog and digital supply sources. The PCM1794DB supports a sampling rate of up to 200 kHz, ensuring high-fidelity audio reproduction.

The PCM1794DB features a robust data interface in the form of I2S, which is widely used in audio applications for its simplicity and reliability. The device is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and safety standards. It is also classified under ECCN EAR99 and HTSUS 8542.39.0001, facilitating international trade and compliance.

PCM1794DB Features

• High Resolution and Sampling Rate: The PCM1794DB boasts a 24-bit resolution and a sampling rate of up to 200 kHz, delivering exceptional audio quality and detailed sound reproduction.
• Flexible Power Supply: The device supports a wide range of supply voltages (3V to 3.6V and 5V), making it versatile for various power configurations.
• I2S Interface: The I2S interface simplifies the integration of the DAC into audio systems, ensuring reliable data transmission and minimal latency.
• Surface-Mount Technology: The 28-pin SSOP package is ideal for surface-mount applications, providing a compact and reliable solution for modern electronics.
• Environmental Compliance: The PCM1794DB is REACH unaffected and RoHS3 compliant, ensuring it meets the highest environmental and safety standards.
• Moisture Sensitivity Level: With an MSL rating of 1 (unlimited), the PCM1794DB is suitable for a wide range of manufacturing environments without requiring special handling.

PCM1794DB Applications

The PCM1794DB is ideal for a variety of high-fidelity audio applications, including:

• High-End Audio Systems: The high resolution and sampling rate make it suitable for audiophile-grade equipment, ensuring precise and detailed audio reproduction.
• Professional Audio Equipment: Ideal for use in studio monitors, mixing consoles, and other professional audio gear where high-fidelity sound is critical.
• Home Theater Systems: Enhances the audio experience in home theaters by providing clear and detailed sound, improving the overall listening experience.
• Digital Audio Workstations (DAWs): The PCM1794DB can be integrated into DAWs to provide high-quality audio output for recording and mixing applications.
• Portable Audio Devices: Its compact size and surface-mount package make it suitable for portable audio devices, such as high-end portable music players and digital audio interfaces.

Conclusion of PCM1794DB

The PCM1794DB from Texas Instruments is a high-performance DAC designed to meet the demands of high-fidelity audio applications. With its 24-bit resolution, 200 kHz sampling rate, and I2S interface, it delivers exceptional audio quality and reliability. The device's wide supply voltage range, surface-mount package, and environmental compliance make it a versatile and robust solution for a variety of audio applications. While it is marked as "Not For New Designs," the PCM1794DB remains a valuable component for existing systems and projects requiring high-quality audio conversion.