SRC4392IPFB is a high-performance audio sampling rate conversion chip launched by Texas Instruments.
1. Basic information
Manufacturer: Texas Instruments.
Function: Audio sampling rate conversion.
Number of channels: 2
Interface: SPI/I2C.
Digital audio interface: AES/EBU/S/PDIF.
Audio data format: Normal\I2S.
Operating temperature range: -40°C to 85°C.
Packaging form: 48-TQFP.
Digital power supply: 1.65V-1.95V / 3V-3.6V.
Power supply: 1.8V / 3.3V.
2. Performance characteristics
High dynamic range: With a typical dynamic range of 144dB, it can capture extremely minute details in audio signals, providing an extremely high signal-to-noise ratio, making the audio details richer and the sound clearer and more realistic.
Low distortion: The total harmonic distortion and noise (THD+N) are as low as -140dB, ensuring that the audio signal maintains high fidelity during the conversion process, reducing distortion and noise interference, and outproducing pure audio signals.
Wide sampling frequency support: Supports input and output sampling frequencies up to 216kHz, capable of handling various common audio sampling rates, meeting the sampling rate requirements of different audio devices, and has strong adaptability.
Automatic detection function: It can automatically detect the sampling ratio from input to output, and also automatically detect non-PCM audio streams, such as DTS CD/LD and IEC 61937 formats. It is more convenient to use and reduces the complexity of manual Settings.
Outstanding jitter attenuation: It features excellent jitter attenuation characteristics, effectively reducing the impact of clock jitter on audio signals and ensuring the stability and accuracy of audio signals.
Rich functional features: Integrated digital de-emphasis filtering function, suitable for input sampling rates of 32kHz, 44.1kHz and 48kHz; It has the functions of digital output attenuation and mute, as well as the function of reducing the output word length. It also includes differential line drivers and CMOS buffer outputs, etc.
3. Application fields
Professional audio equipment: In the digital mixing console, audio signals with different sampling rates can be converted and processed to ensure high-quality mixing effects. In digital audio workstations, precise sampling rate conversion can be provided for audio recording, editing and production, meeting the needs of professional audio production.
Broadcasting studio: Applicable to audio distribution systems, it can uniformly convert and process audio signals from different sources and at different sampling rates, ensuring the quality of audio during the broadcasting transmission process. In the broadcasting studio equipment, it can provide stable and high-quality audio processing support for program production and broadcasting.
High-end audio systems: They can be used in high-end audio decoders, amplifiers and other devices to perform high-quality sampling rate conversion on audio signals, enhance the quality of audio playback, and bring users a more outstanding auditory experience.
Other audio applications: It can also be applied to audio interface devices, tape recorders, routers, etc. In various scenarios where audio sampling rate conversion is required, it can leverage its advantages of high performance and high integration, providing strong support for the design and optimization of audio systems.