SRC4382IPFBR

Audio Special Purpose Overview

The SRC4382IPFBR is a two-channel asynchronous sample rate converter (SRC) manufactured by Texas Instruments. It integrates digital audio interface receivers and transmitters, supporting formats such as I²S, left-justified, right-justified, and TDM. The device operates on a single 3.3V supply with a separate analog supply for low-noise performance. Key electrical specifications include a dynamic range of 116 dB and a total harmonic distortion plus noise (THD+N) of -105 dB. It features an integrated PLL for clock recovery and supports input sampling rates from 8 kHz to 192 kHz.

Audio Special Purpose Feature Summary

• Two-channel asynchronous sample rate conversion with integrated digital audio interfaces
• Supports I²S, Left/Right Justified, and TDM data formats
• High performance: 116 dB dynamic range and -105 dB THD+N
• Integrated PLL for jitter attenuation and clock recovery
• Single 3.3V digital supply with separate analog supply

Audio Special Purpose Applications

• Professional audio equipment requiring high-fidelity sample rate conversion
• Broadcasting systems for format compatibility between different audio standards
• Consumer audio devices needing jitter reduction and clock synchronization

Audio Special Purpose Part Context

The SRC4382 is part of the SRC43xx family of sample rate converters from Texas Instruments, which also includes variants like the SRC4392. These devices are designed to bridge gaps between different digital audio sampling rates and formats, ensuring seamless integration in complex audio signal chains. The IPFB package denotes a 48-pin TQFP form factor suitable for surface-mount assembly.