SRC4192IDBR

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 a flexible ratio range of 16:1 to 1:16. Key electrical specifications include a dynamic range of 144 dB and total harmonic distortion plus noise (THD+N) of –140 dB. The device operates from a single 3.3-V digital core supply (VDD), while the I/O supply (VIO) ranges from 1.65 V to 3.6 V. It features automatic jitter attenuation and linear-phase digital filtering.

Audio Special Purpose Feature Summary

• Automatic sensing of input-to-output sampling ratios ranging from 16:1 to 1:16
• Supports standard audio formats including I2S, Left-Justified, Right-Justified, and TDM modes
• Provides high-performance linear-phase digital filtering with stop-band attenuation greater than 140 dB
• Attenuates sampling and reference clock jitter for improved audio fidelity

Audio Special Purpose Applications

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

Audio Special Purpose Procurement Notes

Verify that the ordering suffix 'BR' corresponds to the tape-and-reel packaging format as specified in the manufacturer's orderable addendum. Confirm the specific revision level of the SBFS022C datasheet to ensure compatibility with design requirements. Check for RoHS compliance status in the official documentation before finalizing procurement.

Audio Special Purpose Selection Notes

Select the SRC4192IDBR when hardware-based mode configuration via control pins is preferred over software programming. This model is pin-compatible with the AD1896, facilitating direct upgrades in existing designs. Ensure the application requires a standalone ASRC without SPI interface needs, which are reserved for the SRC4193 variant.

Audio Special Purpose Part Context

The SRC4192 belongs to the SRC419x family of 192-kHz stereo asynchronous sample-rate converters. It is designed for professional and broadcast audio applications requiring wide dynamic range and ultra-low distortion. The device integrates a 28-bit internal data path and supports dithering for all output data resolutions.

Audio Special Purpose Replacement Considerations

The SRC4192IDB is the tube-packaged equivalent of the IDBR variant. The SRC4193IDBR offers similar performance but includes an SPI port for software control instead of hardware pins.