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TAS5086

SLES131 – FEBRUARY 2005

PurePath Digital™ AUDIO SIX-CHANNEL PWM PROCESSOR

– 20 – 20 kHz Flat Noise Floor for 44.1, 48,

88.2, 96, 176.4 and 192 kHz Data Rates

•

Audio Input/Output

– Digital De-emphasis for 32 kHz, 44.1 kHz

– Automatic Master Clock Rate and Data

and 48 kHz Data Rates

Sample Rate Detection

– Intelligent AM Interference Avoidance

– Four Serial Audio Inputs (Eight Channels)

System Provides Clear AM Reception

– Support for 32, 44.1, 48, 88.2, 96, 176.4, and

– Adjustable Modulation Limit From 93.8% to

192-kHz Sampling Rates

99.2%

– Data Formats: 16-, 20-, or 24-Bit Input Data

•

General Features

Left, Right, and I

– Automated Operation With Easy to Use

– 64 or 48

× Fs Bit Clock Rate

Control Interface

– 128, 192, 256, 384, and 512

× Fs Master

– I

Clock Rates (Up to a Maximum of 50 MHz)

– Control Interface Operational Without MCLK

– Six PWM Audio Output Channels

– Single 3.3-V Power Supply

– Any Output Channel Can be Mapped to Any

Output Pin

– 38-Pin TSSOP Package

– Support Single-Ended and Bridge Tied Load

– I

The TAS5086 is a six channel digital pulse width

•

Audio Processing

modulator (PWM) that provides both advanced per-

– Volume Control Range +48 dB to – 100 dB

formance and a high level of system integration.

– Master Volume Control +24 dB to –100 dB in

TAS5086 is designed to interface seamlessly with

0.5 dB Increments

most audio digital signal processors and MPEG

decoders accepting a wide range of input data and

– Eight Individual Channel Volume Controls

clock formats.

With +24 dB to –100 dB Attenuation in 0.5

dB Increments

The TAS5086 drives six channels of speakers in

either single-ended or bridge tied load configurations

– Serial Output Can be Produced by

that accept a 1N+1 interface format. TAS5086 also

Down-Mix of 5.1 Channel Input or 4

supports 2N+1 power stages with the use of some

Input

external logic (e.g. TAS5112). Stereo line out in I

– 5.1 Channel Down Mix to 2.1 or 3.1 PWM

format is available with either a pass-through signal

Output Speaker System

(SDIN4) or an internal down mix.

– Integrated Bass Management

TAS5086 uses AD modulation operating at a 384-kHz

– Two Programmable Biquads in Subwoofer

switching rate for 32-, 44.1-, 48-, 88.2-, 96-, 176.4-,

Channel

and 192-kHz data. The 8 x over sampling combined

with the 4th order noise shaper provides a broad flat

– Full Six Channel Input and Output Mapping

noise floor and excellent dynamic range from 20 Hz

– Selectable DC Blocking Filters

to 20 kHz.

•

PWM Processing

TAS5086 is clock slave only device. TAS5086 re-

– 8x Over Sampling With 4

ceives MCLK, SCLK and LRCLK from other system

Shaping at 44.1–48 kHz, 4x Over Sampling

components. TAS5086 accepts master clock rates of

at 88.2, 96 kHz, 2x Over Sampling at 176.4,

128, 192, 256, 384, and 512 Fs. TAS5086 accepts a

192 kHz, and 12x Over Sampling at 32 kHz

64 Fs master clock for 176.4-kHz and 192-kHz data.

–

≥105-dB Dynamic Range

(TAS5086+TAS5186)

– THD < 0.06% (TAS5086 Only)

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PurePath Digital is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2005, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.