Datasheet

Introduction

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1 Introduction

The TAS5612/14PHD2EVM PurePath™ Premier Pro customer evaluation module demonstrates the

integrated circuits TAS5614PHD or TAS5612PHD and TAS5518PAG from Texas Instruments (TI).

The TAS5614PHD and TAS5612PHD is high-performance, integrated Stereo Feedback Digital Amplifier

Power Stages designed to drive 4-Ω speakers at up to 150W per channel for TAS5614PHD and 125W per

channel for TAS5612PHD . The devices incorporates the TI Equibit™ technology and is designed to be

used with TI’s Equibit™ modulators. This system only requires a passive demodulation filter to deliver a

efficiency, quality audio amplification.

TAS5518PAG is a high performance 32 bit (24 bit input) multi channel PurePath™ Digital Pulse Width

Modulator (PWM) based on Equibit™ technology with fully symmetrical AD modulation scheme. The

device also has Digital Audio Processing (DAP) that provides 48 bit signal processing, advanced

performance and a high level of system integration. The device has interfaces for headphone output and

Power Supply Volume Control (PSVC).

This EVM is configurable to 2 BTL channels for stereo evaluation or 1 PBTL (parallel BTL) channel for

subwoofer evaluation.

This EVM, together with a TI input-USB board 2, is a complete stereo digital audio amplifier system which

includes digital input (S/PDIF), analog inputs, interface to PC and DAP features like digital volume control,

input and output mixers, automute, tone controls, loudness, EQ filters and dynamic range compression

(DRC). There are configuration options for power stage failure protection.

Table 1. TAS5612/14PHD2EVM Specification

Key Parameters Values

TAS5614 Output Stage Supply Voltage 18V - 36V

TAS5612 Output Stage Supply Voltage 16V - 32.5V

Number of Channels 2 x BTL or 1 x PBTL

Load Impedance BTL 4-8 Ohm

Load Impedance PBTL 2-3 Ohm

TAS5614 Output power BTL 150W / 4Ohm / 10%THD+N

TAS5614 Output power PBTL 300 W / 2Ohm / 10%THD+N

TAS5612 Output power BTL 125W / 4Ohm / 10%THD+N

TAS5612 Output power PBTL 250W / 2Ohm / 10%THD+N

Dynamic Range (DNR) >105 dB

PWM Processor TAS5518PAG

Output Stage TAS5614PHD or TAS5612PHD

TAS5612/14PHD2EVM SLOU285–December 2009

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