TPA5050RSAT.pdf
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The TPA5050RSAT addresses audio/video synchronization issues in TVs and multimedia systems. TI describes it as a stereo digital audio lip-sync delay device with I²C control. The device accepts a single serial audio input, buffers it for a configurable delay, then outputs the delayed audio stream.
It supports multiple digital audio formats (e.g., 16–24-bit I²S, left-justified, right-justified), and the delay can reach about 170 ms per channel at 48 kHz, with one-sample resolution.
Selectable delay aligns audio with video processing latency.
Easy integration with system MCU/processor for runtime delay adjustment.
Supports common serial audio formats used in TV and audio DSP pipelines.
Fine delay adjustment granularity simplifies tuning and calibration.
Two-channel delay processing for left/right audio streams.
Works with LRCLK/BCLK/DATA type serial audio interconnects.
TI notes delay memory can be cleared on power-up or after delay changes (see datasheet behavior).
| Parameter | Value / Condition |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | TPA5050RSAT |
| Function | Stereo Digital Audio Lip-Sync Delay with I²C Control |
| Audio Formats | 16–24-bit I²S / Left-Justified / Right-Justified (per TI) |
| Max Delay | ~170 ms/channel @ fs = 48 kHz (per TI) |
| Delay Resolution | One sample (per TI) |
| Package | RSAT (QFN-16 class; verify exact footprint in TI package drawing) |
Match delay range, formats, clocking, I²C address behavior, and package before substitution.
Texas Instruments (TI) is a major supplier of analog and embedded processing ICs. TI's audio portfolio includes amplifiers, converters, audio processors, and system power solutions used across TVs and home theater systems.
Lip-sync correction for video processing latency paths.
Align audio output with decode and rendering pipeline variations.
Rear-channel effects timing and A/V synchronization.
Front-channel synchronization and timing alignment use cases.
Confirm RSAT package marking and reel label before SMT.
Follow MSL guidance for QFN packages (storage, baking if needed).
Validate I²C register access, clocking, and format configuration on pilot boards.
Measure delay accuracy and verify no audio artifacts under format switching.
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