This document describes the features and applications of the TPA5050 digital amplifier, as well as its use in high-definition TVs and flat panel TVs. The product accepts a single serial audio input, buffers the data, and outputs delayed audio data to synchronize with the video stream.
The TPA5050 is a stereo digital audio lip‑sync delay device with FC control, supporting 16‑24‑bit audio formats and offering up to 170 ms of delay per channel at a 48 kHz sampling rate. It operates from a 3.0‑3.6 V supply, features a 4 mm × 4 mm 16‑pin QFN package, and includes a single serial audio input and output with I²C configuration.
The datasheet details absolute maximum ratings, recommended operating conditions, DC and timing characteristics, pin functions, I²C address selection, and layout guidelines. Application notes describe typical uses such as HD‑TV lip‑sync, home‑theater rear‑channel effects, and wireless speaker synchronization.
| Supply voltage (VDD) | 3.0 V – 3.6 V |
|---|---|
| Maximum delay time | 170 ms per channel at 48 kHz |
| Delay resolution | One sample |
| Package | 4 mm × 4 mm, 16‑pin QFN |
| Typical supply current | 3 mA |
| Typical high‑level output current | 13 mA |
The device can delay audio up to 170 ms per channel when operating at a 48 kHz sampling rate.
It operates from a supply voltage between 3.0 V and 3.6 V.
The device uses three address pins (ADD2, ADD1, ADDO) to select one of eight possible I²C slave addresses.