TDA1388 Philips Semiconductors, TDA1388 Datasheet - Page 2

• Manufacturer Part Number: TDA1388
• Description: Bitstream continuous calibration filter-DAC for CD-ROM audio applications
• Manufacturer: Philips Semiconductors

Philips Semiconductors
FEATURES
Multiple format input interface
Extensive channel manipulation features
Digital sound processing
Advanced audio output configuration
General
1996 Jul 17
I
1f
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
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.
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.
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).
Bitstream continuous calibration filter-DAC
for CD-ROM audio applications
2
S-bus and LSB-justified input format compatible
s
input format data rate.
1
2
(left plus right).
2
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 I
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 1f
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.
2
S-bus data input mode with
Objective specification
TDA1388
s
to 64f
s
.