TDA1388T Philips Semiconductors, TDA1388T Datasheet - Page 11

• Manufacturer Part Number: TDA1388T
• Description: Bitstream continuous calibration filter-DAC for CD-ROM audio applications
• Manufacturer: Philips Semiconductors

Philips Semiconductors
TREBLE: a 5-bit value to program the treble setting. The used set depends on the MODE bits.
Table 14 Treble settings
Flat/min/max setting selection
In the TDA1388T has three setting for the digital sound
features bass boost and treble. The possible settings are
called ‘flat’, ‘min’ and ‘max’. The flat setting has no
influence on the audio signal, the minimum setting has a
small influence on the audio signal and the maximum
setting has a large influence on the audio signal. In the
static-pin mode, the flat setting is used for the bass boost
and treble filters. In the microcontroller mode, all three
settings can by controlled by a register.
Channel manipulation modes
In the TDA1388T there is a channel manipulation function
implemented. This function has a fixed value in the
static-pin mode, the left signal on the left channel and the
right signal on the right channel. In the microcontroller
mode several option are possible. The different modes are
as follows;
1995 Dec 08
Bitstream continuous calibration filter-DAC
for CD-ROM audio applications
TR4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
:
TR3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
:
TR2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
1
:
TR1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
1
:
TR0
0
1
0
1
0
1
1
0
1
0
1
0
1
0
1
0
0
:
11
De-emphasis
De-emphasis is controlled by an external pin in the
static-pin mode and by a register in the microcontroller
mode.The digital de-emphasis filter is dimensioned to
produce the de-emphasis frequency characteristics for the
sample rate 44.1 kHz. With its 18-bit dynamic range, the
digital de-emphasis filter of the TDA1388T is a convenient
and component saving alternative to analog de-emphasis.
De-emphasis is synchronized to the sample clock, so that
operation always takes place on complete samples.
FLAT SET (dB)
Normal stereo output.
Left/right reverse output.
Mono left/right output: (L + R)/2.
Output muting with soft mute.
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
:
MIN SET (dB)
TREBLE
0
0
0
0
2
2
2
2
4
4
4
4
6
6
6
6
6
:
Objective specification
TDA1388T
MAX SET (dB)
0
0
0
0
2
2
2
2
4
4
4
4
6
6
6
6
6
: