Tripath Technology, Inc. – Preliminary Technical Information

1

TCD6000 – Rev. 1.0/09.04

TCD6000

6 CHANNEL CLASS-T DIGITAL AUDIO PROCESSOR USING

General Description

The TCD6000 is a high-performance 6-channel digital audio amplifier processor. It receives 6 digital audio

channels (3 pairs) and outputs 6 complementary single-bit digital data streams suitable for driving Tripath or

other switching output stages.

The TCD6000 accepts data at audio sample rates ranging from 32kHz to 192kHz and incorporates digital

interpolation and sigma-delta conversion to produce streamed digital output signals. When combined with

switching output stages, the TCD6000 allows the implementation of a complete digital audio system

incorporating Class-T Digital Audio Amplification.

Features

Class-T architecture combining ultra-low

distortion with high efficiency

Inputs support I

formats

Up to 24-bit resolution (16, 18, 20, and 24

bit)

104dB dynamic range

THD+N less than 0.03%

Input sampling rates up to 192kHz

I

Stereo headphone amplifier

Predictive Gain Control

Digital volume control

128dB range

1/2 dB step size in 1/8 dB increments

Zero crossing detection for click free

transitions

Optional mute mode leaves headphone

amplifiers operating

Automatic DC offset cancellation

130uV noise floor (PGC = 1/8, low post gain)

Digital de-emphasis filtering for 32, 44.1 and

48kHz sampling rates

MCK

Channel 1 & 2

Channel 3 & 4

Channel 5 & 6

BITCK

LRCK

Y1/B

Y2/B

Y3/B

Y4/B

Y5/B

Y6/B

FB1P/N

FB2P/N

FB3P/N

FB4P/N

FB5P/N

FB6P/N

Class-T Signal Processor

Class-T Signal Processor

Class-T Signal Processor

Class-T Signal Processor

Class-T Signal Processor

Class-T Signal Processor

Digital Filter Engine

Digital Filter Engine

Digital Filter Engine

Digital Filter Engine

Digital Filter Engine

Digital Filter Engine

HP1

HP2

I2C Port

Reference

Voltages

Control Signals

Technical Information – Preliminary

Revision 1.0 – September 2004