SRC4192IDB

Audio Special Purpose Overview

The SRC4192IDBR is a stereo asynchronous sample-rate converter (ASRC) from Texas Instruments, housed in a 28-pin SSOP package. It supports input and output sampling rates up to 212 kHz with an automatic sensing range of 16:1 to 1:16. The device delivers a dynamic range of 144 dB and total harmonic distortion plus noise (THD+N) of –140 dB. It operates from a single 3.3-V digital core supply (VDD) and a separate I/O supply (VIO) ranging from 1.65 V to 3.6 V. The unit features flexible serial ports supporting I2S, Left-Justified, Right-Justified, and TDM formats, along with low group delay options for interpolation filters.

Audio Special Purpose Feature Summary

• Automatic sensing of input-to-output sampling ratios from 16:1 to 1:16
• High-performance linear-phase digital filtering with stop band attenuation greater than 140 dB
• Flexible audio serial ports supporting I2S, Left/Right Justified, and TDM modes
• Low group delay option for interpolation filter and direct downsampling capability

Audio Special Purpose Applications

• Digital mixing consoles
• Digital audio workstations
• Audio distribution systems
• Broadcast studio equipment
• High-end A/V receivers

Audio Special Purpose Procurement Notes

Verify the specific ordering suffix 'IDBR' corresponds to the tape-and-reel packaging configuration as indicated by distributor listings. Confirm that the component meets RoHS compliance requirements for the target assembly process. Ensure the procurement source provides valid traceability documentation consistent with Texas Instruments production standards.

Audio Special Purpose Selection Notes

Select the SRC4192IDB when hardware pin-programming is preferred over software control via SPI. This variant lacks the internal control registers found in the SRC4193, relying instead on mode pins for configuration. Verify that the application requires the specific 28-pin SSOP footprint and that the 3.3-V logic levels are compatible with the system's digital interface.

Audio Special Purpose Part Context

The SRC4192 is part of the SRC419x family of high-end sample-rate converters designed for professional audio. It is pin-compatible with the Analog Devices AD1896, facilitating migration for existing designs. The device distinguishes itself from the SRC4193 by its standalone, pin-programmed architecture rather than a software-controlled SPI interface.

Audio Special Purpose Replacement Considerations

The SRC4192IDBG4 is a lead-free version of the same component. Designers migrating from the AD1896 can utilize this part due to pin compatibility. No other direct functional substitutes are documented in the provided datasheet.