TDA1388T PDF даташит
Спецификация TDA1388T изготовлена «NXP Semiconductors» и имеет функцию, называемую «Bitstream continuous calibration filter-DAC for CD-ROM audio applications». |
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Детали детали
Номер произв | TDA1388T |
Описание | Bitstream continuous calibration filter-DAC for CD-ROM audio applications |
Производители | NXP Semiconductors |
логотип |
24 Pages
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INTEGRATED CIRCUITS
DATA SHEET
TDA1388T
Bitstream continuous calibration
filter-DAC for CD-ROM audio
applications
Objective specification
File under Integrated Circuits, IC01
1995 Dec 08
No Preview Available ! |
Philips Semiconductors
Bitstream continuous calibration
filter-DAC for CD-ROM audio
Objective specification
TDA1388T
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 (left plus right)/2.
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 TDA1388T CMOS digital-to-analog bitstream
convertor 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 TDA1388T 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 convertors (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 TDA1388T 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.
1995 Dec 08
2
No Preview Available ! |
Philips Semiconductors
Bitstream continuous calibration filter-DAC
for CD-ROM audio applications
Objective specification
TDA1388T
ORDERING INFORMATION
TYPE
NUMBER
TDA1388T
TDA1388TZ
NAME
SO28
SSOP28
PACKAGE
DESCRIPTION
plastic small outline package; 28 leads; body width 7.5 mm.
plastic shrink small outline package; 28 leads; body width 5.3 mm.
VERSION
SOT136-1
SOT341-1
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Supply
VDD
IDD
VFS(rms)
(THD+N)/S
S/N
BR
fsys
Tamb
supply voltage
supply current
full-scale output voltage
(RMS value)
total harmonic distortion plus
noise as a function of signal for
the line output
total harmonic distortion plus
noise as a function of signal for
the headphone output
signal-to-noise ratio
input bit rate at data input
system clock frequency
operating ambient temperature
note 1
note 2
VDD = 5 V
0 dB signal
RL = 5 kΩ
−60 dB signal
RL = 5 kΩ
0 dB signal
RL = 16 Ω
0 dB signal
RL = 32 Ω
−60 dB signal
RL = 16 Ω or RL = 32 Ω
A-weighted;
at code 00000H
fsys = 256fs
fsys = 384fs
4.5 5.0
− 22
0.9 1.0
− −85
− 0.006
− −35
− 1.8
− −65
− 0.056
− −70
− 0.032
− −35
− 1.8
90 95
−
−
8.192
−20
64fs
48fs
−
−
Notes
1. All VDD and VSS pins must be connected to the same supply or ground respectively.
2. Measured at input code 00000H and VDD = 5 V.
5.5 V
− mA
1.1 V
−80
0.013
−30
3.2
−60
0.1
−
−
−30
3.2
−
dB
%
dBA
%
dB
%
dB
%
dBA
%
dBA
−
−
18.432
+70
bits
bits
MHz
°C
1995 Dec 08
3
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