TPA5050RSAR

The TPA5050RSAR from Texas Instruments is a stereo digital audio delay processor that buffers audio data for a selectable period, outputting the delayed stream to synchronize audio with video. This IC is crucial for applications like High Definition TVs, Flat Panel TVs, and Home Theater systems where complex video processing can cause audio lag.

Key features include support for 16-24-bit I2S digital audio formats (Right-Justified, Left-Justified) and I2C bus control. It provides a delay time of up to 170 ms per channel at a sample rate of 48 kHz, with a delay resolution of one sample. The device operates at 3.3V with 5V tolerant I/O and I2C control, and supports audio bit clock rates from 32 to 64 fs, where fs ranges from 32 kHz to 192 kHz. No external crystal or oscillator is required as all internal clocks are generated from the audio clock.

This audio processor is housed in a compact 4mm x 4mm, 16-pin QFN package, suitable for surface mounting. The memory is cleared on power-up or after delay changes, preventing erroneous data output. For applications requiring longer delays, multiple TPA5050 devices can be connected in series.

Ideal for applications requiring precise audio-video synchronization, the TPA5050RSAR simplifies design by integrating essential delay processing functions. Its surface mount package and minimal external component requirements make it suitable for space-constrained designs.