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TAS2553

Texas Instruments
Part Number TAS2553
Manufacturer Texas Instruments
Description Class-D Mono Audio Amplifier
Published Jun 8, 2020
Detailed Description Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TAS2553 SLAS978B – SEPTEMBER 2...
Datasheet PDF File TAS2553 PDF File

TAS2553
TAS2553

Overview
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TAS2553 SLAS978B – SEPTEMBER 2013 – REVISED FEBRUARY 2014 TAS2553 2.
8-W Class-D Mono Audio Amplifier with Class-G Boost and Speaker Sense 1 Features •1 Analog or Digital Input Mono Boosted Class-D Amplifier • 2.
8 W into 8 Ω Load from 3.
6 V Supply (1% THD+N) • Efficiency of 86% at Rated Power • I2S, Left-Justified, Right-Justified, DSP, PDM, and TDM Input and Output Interface • Input Sample Rates from 8 kHz to 192 kHz • High Efficiency Class-G Boost Converter – Automatically Adjusts Class-D Supply • Built-In Speaker Sense – Measures Speaker Current and Voltage – Measures VBAT and VBOOST Voltages • Built-In Automatic Gain Control (AGC) – Limits Battery Current Consumption • Adjustable Class-D Switching Edge-Rate Control • Power Supplies – Boost Input: 3.
0 V to 5.
5 V – Analog: 1.
65 V to 1.
95 V – Digital I/O: 1.
5 V to 3.
6 V • Thermal and Short-Circuit Protection • I2C Interface for Register Control • Stereo Configuration Using Two TAS2553s – I2C Address Select Terminal (ADDR) • 2.
855 mm x 2.
575 mm, 0.
4 mm Pitch 30-Ball WCSP 2 Applications • Mobile Phones • PND • Portable Audio Docks • Tablets • Gaming Devices 3 Description The TAS2553 is a high efficiency Class-D audio power amplifier with advanced battery current management and an integrated Class-G boost converter.
The device constantly measures the current and voltage across the load and provides a digital stream of this information.
The Class-G boost converter generates the Class-D amplifier supply rail.
During low Class-D output power, the boost improves efficiency by deactivating and connecting VBAT directly to the Class-D amplifier supply.
When high power audio is required, the boost quickly activates to provide significantly louder audio than a stand-alone amplifier connected directly to the battery.
The AGC automatically adjusts Class-D gain to reduce battery current at end-of-charge voltages, preventing output clipping,...


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