TAS5028 datasheet(19/84 Pages) TI

19 / 84 page

Introduction

SLES112 — June 2004

TAS5028

Table 1 - 2. TAS5028 Audio Processing Feature Sets

FEATURE

32 - 96 kHz

8 CHANNEL FEATURE SET

32 - 96 kHz

6 + 2 LINE OUT FEATURE SET

176.4- AND 192-kHz

FEATURE SET

Signal processing

channels

6 + 2

Pass through channels

N/A

Master volume

1 for eight channels

1 for six channels

1 for three channels

Individual channel

volume controls

Bass and treble tone

controls

Four Bass and Treble tone controls

with

±18 dB range, programmable

corner frequencies, and 2nd order

slopes

L, R and C (Ch 1, 2, and 7)

LS, RS (Ch 3 and 4)

LBS, RBS (Ch 5 and 6)

Sub (Ch 8)

Four Bass and Treble tone controls

with

±18 dB range, programmable

corner frequencies, and 2nd order

slopes

L, R and C (Ch 1, 2, and 7)

LS, RS (Ch 3 and 4)

Sub, (Ch 8)

Line L and R (Ch 5 and 6)

Two Bass and Treble tone controls

with

±18 dB range, programmable

corner frequencies, and 2nd order

slopes

L and R (Ch 1 and 2)

Sub (Ch 8)

Input output

mapping/mixing

Each of the eight signal-processing channels input can be any ratio of the

eight input channels.

Each of the eight outputs can be any ratio of any two processed channels.

Each of the three

signal-processing channels or the

five pass-though channels inputs

can be any ratio of the eight input

channels.

Each of the eight outputs can be

any ratio of any of the three

processed or five bypass

channels.

DC blocking filters

(Implemented in PWM

Section)

Eight channels

Digital de-emphasis

(Implemented in PWM

Section)

Eight channels for 32 kHz, 44.1 kHz,

and 48 kHz

Six channels for 32 kHz, 44.1 kHz,

and 48 kHz

N/A

Number of Coefficient

sets Stored

Three additional coefficient sets can be stored in memory

1.5

TAS5028 DAP Architecture

1.5.1 TAS5028 DAP Architecture Diagrams

Figure 1 - 4 shows the TAS5028 DAP architecture for Fs = 96 kHz. Note the TAS5028 bass management

architecture shown in channels 1, 2, 7, and 8. Note that the I2C registers are shown to help the designer

configure the TAS5028.

Figure 1 - 5 shows the TAS5028 architecture for Fs = 176.4 kHz or Fs = 192 kHz. Note that only channels 1,

2, and 8 contain all the features. Channels 3 - 7 are pass-through except for master volume control.

Figure 1 - 6 shows TAS5028 detailed channel processing. The output mixer is 8X2 for channels 1 - 6 and *X3

for channels 7 and 8.

TAS5028 Datasheet(PDF) 19 Page - Texas Instruments

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