SRC4392IPFBR

Audio Special Purpose Overview

The SRC4392IPFBR is a two-channel asynchronous sample rate converter (SRC) from Texas Instruments, designed for professional and broadcast digital audio systems. It integrates a digital audio interface receiver (DIR) and transmitter (DIT), along with two audio serial ports and flexible data routing logic. The device supports AES3, S/PDIF, IEC 60958, and EIAJ CP-1201 standards. Key electrical parameters include a typical dynamic range of 144 dB at -60 dB input and a total harmonic distortion plus noise (THD+N) of -140 dB. It operates on a +1.8V core logic supply and a +3.3V supply for the DIR/DIT sections, with an independent I/O voltage range of 1.65V to 3.6V.

Audio Special Purpose Feature Summary

• Dual-channel asynchronous SRC with 144 dB dynamic range and -140 dB THD+N
• Integrated DIR and DIT supporting AES3, S/PDIF, and IEC 60958 standards
• Supports input/output sampling rates up to 216 kHz and word lengths up to 24 bits
• Configurable via 4-wire SPI or 2-wire I2C bus interfaces

Audio Special Purpose Applications

• Professional digital audio systems
• Broadcast audio equipment
• Digital audio interface receivers and transmitters

Audio Special Purpose Procurement Notes

Verify the package type is TQFP-48 or QFN-40 as specified in official documentation, noting that IPFB denotes the TQFP-48 variant. Confirm RoHS compliance and lead-free status through the manufacturer's datasheet. Ensure the ordering suffix matches the required tape-and-reel packaging configuration for automated assembly processes.

Audio Special Purpose Selection Notes

Select this component when high-fidelity sample rate conversion is required alongside integrated digital audio interface capabilities. It is suitable for applications needing support for sampling rates up to 216 kHz and word lengths up to 24 bits. Consider the power supply requirements: a separate 1.8V core and 3.3V analog/digital interface supply are necessary for proper operation.

Audio Special Purpose Part Context

The SRC4392 belongs to Texas Instruments' family of high-performance audio sample rate converters. It is part of the Burr-Brown product line acquired by TI, often referenced in legacy documentation. The IPFBR suffix indicates a specific package (TQFP-48) and reel quantity configuration within the SRC4392 series.

Audio Special Purpose Replacement Considerations

The SRC4392IPFB is a direct equivalent part number. Check for pin and register compatibility with related devices like the SRC4382 if migrating from older designs.