Texas Instruments TPA5050RSARSell Excess Inventory

Part No.:: TPA5050RSAR

Manufacturer:: Texas Instruments

Category:: Audio Special Purpose

Package:: 16-VQFN Exposed Pad

Datasheet:: TPA5050RSAR.pdf

Description:: IC AUDIO SIGNAL PROCESSOR 16QFN

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TPA5050RSAR: Stereo Digital Audio Lip-Sync Delay Processor with I²C Control – QFN-16

The TPA5050RSAR from Texas Instruments is a stereo digital audio lip-sync delay processor. It accepts a serial audio input, buffers the audio for a selectable period, and outputs the delayed serial audio stream. With I²C control and up to about 170 ms per channel at 48 kHz, it helps align audio with video in systems with heavy video processing.

Product Introduction

The TPA5050RSAR is designed for lip-sync / audio delay applications. It takes one serial audio input stream and provides a delayed serial output stream. The delay value is programmable via I²C, enabling system-level synchronization between audio and video paths.

According to TI, one device can provide up to ~170 ms per channel (at 48 kHz), and multiple devices can be connected in series when more delay is required. This is useful in TVs, set-top boxes, AV receivers, and multimedia systems where video processing latency varies by mode.

Key Benefits

Accurate Lip-Sync Alignment

Selectable audio delay helps match audio timing to video processing latency.

I²C Programmable Control

Easy system integration with MCU control over delay settings.

Serial Audio In/Out

Works in common digital audio chains using synchronous serial audio clocks.

Scalable Delay (Daisy Chain)

Devices can be connected in series to extend delay beyond one-chip capacity.

Technical Features

Stereo Digital Audio Delay

Designed for two-channel audio delay processing in digital audio paths.

3-Wire Serial Audio Port

Serial interface includes LRCLK, BCLK, DATA (clocked on BCLK edge as specified by TI).

I²C Register Control

Delay configuration and operating behavior are controlled through I²C registers.

Technical Specifications

Parameter	Value / Condition
Manufacturer	Texas Instruments (TI)
Part Number	TPA5050RSAR
Function	Stereo Digital Audio Lip-Sync Delay Processor
Control Interface	I²C
Audio Interface	3-wire serial audio (LRCLK / BCLK / DATA)
Max Delay	Up to ~170 ms/channel @ 48 kHz (one device); can be cascaded for more
Package	RSAR: 16-QFN (VQFN) Exposed Pad (verify footprint in datasheet)

Equivalent & Manufacturer Information

Equivalent / Alternative Models

When selecting an alternative, compare: supported serial audio formats, max delay at your sampling rate, I²C address/control scheme, latency granularity, and package/thermal constraints.

TI TPA5051 – multi-channel family option (if you need more channels; redesign may be needed)
TI TPA5052 – family option for lip-sync delay (compare features and availability)
Other digital audio delay processors that support I²C + serial audio ports

Tip: If you need longer delay without changing silicon family, consider TI's suggested series connection approach (daisy-chain).

About the Manufacturer – Texas Instruments

Texas Instruments (TI) is a leading analog and embedded semiconductor supplier. TI's audio portfolio covers amplifiers, converters, audio processors, and system power solutions, widely used in TVs, soundbars, set-top boxes, and industrial audio systems.

Application Field

TV / Smart TV

Audio-video synchronization across different video processing modes.

Set-Top Box

Compensates variable decode/render latency for consistent lip-sync.

AV Receiver / Home Theater

Aligns audio pipeline to video switching and enhancement latency.

Multimedia Systems

Digital audio delay insertion for timing correction and system tuning.

Quality Control

Lot & Date Code Traceability

Record lot/date code and packaging condition on arrival for supply-chain traceability.

Moisture Sensitivity Handling

QFN packages often require MSL controls; store and bake per label guidance.

ESD Safe Process

Maintain ESD-safe storage/handling to reduce latent defects.

Pre-shipment Verification

Final PN/qty/packaging method verification to avoid mix-ups.

Frequently Asked Questions (FAQ)

1) What does TPA5050 do?

It buffers a serial audio stream and outputs a delayed version to achieve audio/video lip-sync.

2) How much delay can one chip provide?

TI indicates up to about 170 ms per channel at 48 kHz, and you can cascade devices for longer delay.

3) What clocks are needed for the serial audio port?

A 3-wire port with LRCLK, BCLK, and DATA is used; data is clocked with BCLK per TI description.

Disclaimer

Delay range, supported audio formats, and timing constraints depend on sampling rate and serial clocking. Always confirm electrical and timing requirements with the latest official TI datasheet before production.

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