STA326JTR

Audio Special Purpose Overview

The STA326JTR is a fully integrated digital audio processor and amplifier by STMicroelectronics, designed for high-efficiency all-digital amplification. It features a DDX power output stage with four independent half-bridges configurable for 2.1, 2-channel, or single parallel full-bridge modes. The device supports I2C control and I2S serial audio input, offering over 100 dB SNR. It operates on a supply voltage of 10V to 36V and functions within a junction temperature range of -20°C to 125°C. Packaged in a PowerSO-36 EPU surface-mount case, it integrates digital processing including programmable EQ and tone control.

Audio Special Purpose Feature Summary

• Fully integrated digital audio processor with DDX power output stage
• Configurable power section: 2x40W+80W, 2x80W, or 1x160W
• I2C control interface and I2S serial audio data input
• Over 100 dB SNR and dynamic range with 24-bit DDX processing

Audio Special Purpose Applications

• Pre-amplifier circuits
• High-power digital audio systems
• Automotive audio applications

Audio Special Purpose Procurement Notes

The STA326JTR is listed as obsolete or end-of-life by the manufacturer. Availability is restricted, and distributors may not stock this item in standard regions. Verification of current lifecycle status and alternative sourcing is required before procurement planning.

Audio Special Purpose Selection Notes

Select the STA326JTR for applications requiring a single-chip solution for high-power digital amplification with integrated DSP features. Ensure the design accommodates the 10V–36V supply range and the PowerSO-36 EPU package thermal requirements. Verify compatibility with I2S audio inputs and I2C control protocols.

Audio Special Purpose Part Context

The STA326JTR belongs to the STA326 series from STMicroelectronics. This series provides a complete DDX solution combining digital audio processing, amplifier control, and power output. The JTR suffix indicates the Tape & Reel packaging format, suitable for automated surface-mount assembly processes.

Audio Special Purpose Replacement Considerations

As the STA326JTR is marked as obsolete, direct replacement part numbers are not explicitly confirmed in the provided source material. Engineers should consult STMicroelectronics for recommended alternatives or evaluate other devices in the STA3xx family that remain active.