GUI for evaluation module (EVM)
TAS2552
4-W, digital/analog input smart amp with I/V sense for speaker protection & integ. 8.5-V boost
Data sheet
TAS2552
- Analog or Digital Input Mono Boosted Class-D
Amplifier - 4.0 W into 8 Ω Load from 4.2 V Supply (1%
THD+N) - Efficiency of 85% 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 TAS2552s
- I2C Address Select Terminal (ADDR)
- 2.855 mm × 2.575 mm, 0.4 mm Pitch 30-Ball
WCSP
The TAS2552 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, distortion and early system shutdown. The fixed gain is adjustable via I2C. The gain range is –7 dB to +24 dB in 1 dB steps.
In addition to a differential mono analog input, the TAS2552 has built-in a 16-bit D/A converter used with a digital input. Moving the D/A converter from the digital host processor into the integrated amplifier process provides better dynamic performance at lower system cost. Additionally, since the PCB routing is digital rather than analog, sensitivity to external perturbations such as GSM frame-rate noise is decreased at the system level.
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Technical documentation
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View all 8 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TAS2552 4.0-W Class-D Mono Audio Amplifier with Class-G Boost and Speaker Sense datasheet (Rev. B) | PDF | HTML | 30 Apr 2015 |
| Technical article | How smart amps are bringing high-fidelity audio into the smart home | 03 May 2021 | ||
| Application note | Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) | 26 Aug 2019 | ||
| Application note | AN-1849 An Audio Amplifier Power Supply Design (Rev. C) | 27 Jun 2019 | ||
| Application note | PLL and Clocking Configuration for Audio Devices | PDF | HTML | 26 Mar 2019 | |
| EVM User's guide | TAS2552 EVM User's Guide (Rev. A) | 31 Jul 2015 | ||
| Application note | Inductor Selection for the TAS2552 Boosted Class-D Amplifier (Rev. A) | 14 May 2014 | ||
| Application note | AN-1737 Managing EMI in Class D Audio Applications (Rev. A) | 01 May 2013 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
TAS2552EVM — TAS2552 4W Class D Audio Power Amplifier Evaluation Module
The TAS2552EVM is a USB audio amplifier with an IV feedback, Boosted Class-D mono amplifier. Together with the TAS2552 control software and a customer supplied speaker and power supply, it allows easy evaluation of the TAS2552 audio amplifier. The TAS2552 control software is compatible with Windows (...)
User guide: PDF
Application software & framework
PUREPATHCONSOLE — PurePath™ Console graphical development suite for audio system design and development
PurePath™ Console is a highly integrated and easy-to-use audio development suite designed specifically to simplify the evaluation, configuration and debug process associated with the development of audio products. Watch how easy it is to use the PurePath™ Console 3 software.
PurePath Console’s (...)
PurePath Console’s (...)
Driver or library
TAS2552SW-LINUX — Linux Driver for TAS2552
The Linux driver supports the TAS2552 4.0-W Class-D Mono Audio Amplifier with Class-G Boost and Speaker Sense. The Linux driver supports communication through the I2C bus and interfaces with the Linux DAPM (Dynamic Audio Power Management for Portable Devices) class.
Linux Mainline Status
Linux Mainline Status
Available in (...)
Simulation tool
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
| Package | Pins | Download |
|---|---|---|
| DSBGA (YFF) | 30 | View options |
Ordering & quality
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