Texas Instruments TAS5518-5152K8EVM

Overview

TAS5518-5152K8EVM from Texas Instruments is an evaluation module designed to demonstrate the integrated PurePath Digital™ amplifier system comprising the TAS5518 digital audio PWM processor and TAS5152 digital amplifier power-output stage. It supports 7-/8-channel speaker output, stereo headphone output, and digital audio interfaces including I2S and S/PDIF, targeting home-theater applications such as A/V receivers and plasma display panels.

For engineers reviewing the TAS5518-5152K8EVM datasheet, TAS5518-5152K8EVM pinout, TAS5518-5152K8EVM application, or TAS5518-5152K8EVM equivalent, this EVM enables rapid validation of multichannel digital audio processing, PSVC-based volume control, short-circuit/thermal protection behavior, and I²C-configurable DAP features including equalization, dynamic range compression, and auto-mute.

Technical Context

The TAS5518-5152K8EVM integrates two TI ICs: the TAS5518PAG (32-bit, 24-bit input, 32–192 kHz sample rate, 48-bit DAP engine) and TAS5152DKD (4-Ω load, up to 125 W/channel, PowerPAD™ package with integrated gate drivers and DMOS transistors). The board implements a complete 6.1-channel digital audio amplifier system when paired with a TI input-USB board.

System-level interfaces include dual power supply inputs (15–20 V system, 0–35 V output-stage), J60 digital audio (I2S ×4 channels + MCLK/LRCLK/SCLK), J40 I²C control (SDA/SCL), J700 stereo headphone output, and J101–J107 speaker terminals with wired-OR fault reporting (SD/OTW). Protection includes auto-recovery short-circuit and thermal monitoring per TAS5152.

Key Specifications

Availability

TAS5518-5152K8EVM is available at Aetrix Electronics and suitable for home-theater system development, multichannel audio amplifier prototyping, and PurePath Digital™ architecture validation requiring stable component supply and full-system interface verification.

Supply support for TAS5518-5152K8EVM includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments (TI) is a global semiconductor company specializing in analog, embedded processing, and digital signal technologies for industrial, automotive, and consumer applications.

The TAS5518-5152K8EVM belongs to TI's PurePath Digital™ evaluation platform family, engineered to accelerate design-in of high-fidelity, multichannel Class-D audio systems with integrated digital processing and robust power-stage protection.

FAQ

What is the primary function of the TAS5518-5152K8EVM?

The TAS5518-5152K8EVM is an evaluation module that demonstrates the combined operation of the TAS5518 digital audio PWM processor and TAS5152 digital amplifier power stage. It provides a complete hardware platform for validating multichannel digital audio processing, speaker drive capability up to 125 W per channel into 4 Ω, and system-level features like I²C-controlled DAP, PSVC, and fault reporting - all implemented on a single double-sided PCB.

Which digital audio interfaces does the TAS5518-5152K8EVM support?

The TAS5518-5152K8EVM supports I2S digital audio input via J60 connector with four independent data lanes (SDIN1–SDIN4) for channels 1–8, plus master clock (MCLK), bit clock (SCLK), and left-right clock (LRCLK). S/PDIF optical and coaxial inputs are supported through an external TI input-USB board, not onboard. No USB or HDMI audio interface is integrated directly into the TAS5518-5152K8EVM itself.

How does the TAS5518-5152K8EVM handle thermal and short-circuit protection?

The TAS5518-5152K8EVM leverages the built-in protection circuitry of the TAS5152DKD power stage, including short-circuit detection and thermal monitoring. Fault signals OTW (overtemperature warning) and SD (shutdown) are wired-OR across all channels and routed to J40 pins 22 and 20 respectively. The TAS5152 operates in back-end auto-recovery mode, automatically resetting after fault clearance while maintaining I²C register state for soft mute and volume settings.

Can the TAS5518-5152K8EVM be used without the TI input-USB board?

No - the TAS5518-5152K8EVM requires the TI input-USB board (or compatible interface) to provide digital audio input (S/PDIF or USB-to-I2S), PC configuration via GUI, and full control of DAP features. The EVM lacks onboard USB, ADC, or digital source capability; J60 accepts only I2S signals, and J40 relies on external I²C master control. Without the input board, only basic power-stage functionality and manual control via jumpers or test points can be verified.

What are the power supply requirements for the TAS5518-5152K8EVM?

The TAS5518-5152K8EVM requires two independent DC supplies: a 15–20 V system supply (≤0.3 A) for logic and regulation, and a 0–35 V output-stage supply (up to 6 A) for the TAS5152 power stage. Supply impedance must be minimized; long cables increase distortion at high output/low frequencies. The recommended power-up sequence mandates holding RESET low for ≥200 ms during startup, managed by onboard U73 reset generator.