TAS5508C datasheet(9/107 Pages) TI

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TAS5508C

www.ti.com

SLES257 – SEPTEMBER 2010

8-Channel Digital Audio PWM Processor

Check for Samples: TAS5508C

Introduction PWM

1.1

Features

1234

Update Rates

• General Features

– Four Bass and Treble Tone Controls with

– Automated Operation With an Easy-to-Use

±18-dB Range, Selectable Corner

Control Interface

Frequencies, and Second-Order Slopes

– I2C Serial-Control Slave Interface

•

L, R, and C

– Integrated AM Interference-Avoidance

•

LS, RS

Circuitry

•

LR, RR

– Single, 3.3-V Power Supply

•

Sub

– 64-Pin TQFP Package

– Configurable Loudness Compensation

– 5-V Tolerant Inputs

– Two Dynamic Range Compressors With Two

• Audio Input/Output

Thresholds, Two Offsets, and Three Slopes

– Automatic Master Clock Rate and Data

– Seven Biquads Per Channel

Sample Rate Detection

– Full 8×8 Input Crossbar Mixer. Each

– Eight Serial Audio Input Channels

Signal-Processing Channel Input Can Be

– Eight PWM Audio Output Channels

Any Ratio of the Eight Input Channels.

Configurable as Six Channels With Stereo

– 8×2 Output Mixer – Channels 1–6. Each

Lineout or Eight Channels

Output Can Be Any Ratio of Any Two

– Line Output Is a PWM Output to Drive an

Signal-Processed Channels.

External Differential-Input Operational

– 8×3 Output Mixer – Channels 7 and 8. Each

Amplifier

Output Can Be Any Ratio of Any Three

– Headphone PWM Output to Drive an External

Signal-Processed Channels.

Differential Amplifier Like the TPA112

– Three Coefficient Sets Stored on the Device

– PWM Outputs Support Single-Ended and

Can Be Selected Manually or Automatically

Bridge-Tied Loads

(Based on Specific Data Rates).

– 32-, 38-, 44.1-, 48-, 88.2-, 96-, 176.4-, and

– DC Blocking Filters

192-kHz Sampling Rates

– Able to Support a Variety of Bass

– Data Formats: 16-, 20-, or 24-Bit

Management Algorithms

Left-Justified, I2S, or Right-Justified Input

• PWM Processing

Data

– 32-Bit Processing PWM Architecture With 40

– 64-Fs Bit-Clock Rate

Bits of Precision

– 128-, 192-, 256-, 384-, 512-, and 768-Fs

– 8× Oversampling With Fifth-Order Noise

Master Clock Rates (Up to a Maximum of

Shaping at 32 kHz–48 kHz, 4× Oversampling

50 MHz)

at 88.2 kHz and 96 kHz, and 2× Oversampling

• Audio Processing

at 176.4 kHz and 192 kHz

– 48-Bit Processing Architecture With 76 Bits

– >102-dB Dynamic Range

of Precision for Most Audio Processing

– THD+N < 0.1%

Features

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

– Volume Control Range 36 dB to –127 dB

88.2-, 96-, 176.4-, and 192-kHz Data Rates

•

Master Volume Control Range of 18 dB to

– Digital De-Emphasis for 32-, 44.1-, and

–100 dB

48-kHz Data Rates

•

Eight Individual Channel Volume Control

– Flexible Automute Logic With Programmable

Ranges of 18 dB to –127 dB

Threshold and Duration for Noise-Free

– Programmable Soft Volume and Mute

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.

Matlab is a trademark of Math Works, Inc.

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

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