TDA1388M View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

TDA1388M

Bitstream continuous calibration filter-DAC for CD-ROM audio applications

Philips Electronics 

Philips Semiconductors

Bitstream continuous calibration filter-DAC

for CD-ROM audio applications

Objective specification

TDA1388

FEATURES

Multiple format input interface

• I2S-bus and LSB-justified input format compatible

• 1fs input format data rate.

Extensive channel manipulation features

• Separate soft mute on left and right channel

• Channel interchange function (left to right and right to

left)

• Monaural function (left to right or right to left)

• True mono function 1⁄2(left plus right).

Digital sound processing

• Separate digital volume control for left and right

channels

• Digital tone control, bass boost and treble

• dB-linear volume and tone control (low microcontroller

load)

• Digital de-emphasis

• Soft mute.

Advanced audio output configuration

• Stereo line output (under microcontroller volume

control)

• Stereo headphone output (under 5-tap potentiometer

volume control)

• Line output independent of headphone output volume

• Power on/off click prevention circuitry

• High linearity, dynamic range, low distortion.

General

• Integrated digital filter plus DAC plus headphone driver

• No analog post filter required

• Easy application

• Functions controllable by static pins or by

microcontroller interface

• 5 V power supply

• Low power consumption

• Small package size (SO28 and SSOP28).

GENERAL DESCRIPTION

The TDA1388 CMOS digital-to-analog bitstream converter

incorporates an up-sampling digital filter and noise shaper,

unique signal processing features and integrated line and

headphone drivers. The digital processing features are of

high sound quality due to the wide dynamic range of the

bitstream conversion technique.

The TDA1388 supports the I2S-bus data input mode with

word lengths of up to 20 bits and the LSB justified serial

data input format with word lengths of 16, 18 and 20 bits.

Two cascaded half-band filters and a sample-and-hold

function increase the oversampling rate from 1fs to 64fs.

A 2nd-order noise shaper converts this oversampled data

to a bitstream for the 5-bit continuous calibration

Digital-to-Analog Converters (DACs).

On board amplifiers convert the output current to a voltage

signal capable of driving a line output. The signal is also

used to feed the integrated headphone amplifiers.

The volume of the headphone is controlled by an external

potentiometer.

The TDA1388 has special sound processing features for

use in CD-ROM audio applications, which can be

controlled by static pins or microcontroller interface.

These functions are de-emphasis, volume, bass boost,

treble, soft mute and the channel manipulation functions

needed for ATAPI-compliant functionality in CD-ROM

audio processing.

1996 Jul 17

2

Share Link: