2000 Jan 04
2
Philips Semiconductors
Preliminary specification
Multi-channel filter DAC
UDA1328T
CONTENTS
1
FEATURES
1.1
General
1.2
Multiple format input interface
1.3
Multi-channel DAC
1.4
Advanced audio configuration
2
APPLICATIONS
3
GENERAL DESCRIPTION
4
ORDERING INFORMATION
5
QUICK REFERENCE DATA
6
BLOCK DIAGRAM
7
PINNING
8
FUNCTIONAL DESCRIPTION
8.1
System clock
8.2
Application modes
8.3
Interpolation filter (DAC)
8.4
Digital silence detection
8.5
Noise shaper
8.6
Filter Stream DAC
8.7
Static Mode
8.7.1
System clock setting
8.7.2
De-emphasis control
8.7.3
Digital interface formats
8.8
L3 mode
8.8.1
Digital interface formats
8.8.2
L3 address
9
L3 INTERFACE DESCRIPTION
9.1
Address mode
9.2
Data transfer mode
9.2.1
Programming the sound processing and other
features
9.2.2
Reset bit
9.2.3
System clock frequency
9.2.4
Data input format
9.2.5
Quick mute
9.2.6
Power control
9.3
Feature settings
9.3.1
Volume control
9.3.2
Sub volume control
9.3.3
Mute
9.3.4
Digital silence mode
9.3.5
De-emphasis
9.3.6
Output polarity control
10
LIMITING VALUES
11
HANDLING
12
THERMAL CHARACTERISTICS
13
QUALITY SPECIFICATION
14
DC CHARACTERISTICS
15
AC CHARACTERISTICS (ANALOG)
16
AC CHARACTERISTICS (DIGITAL)
17
APPLICATION INFORMATION
18
PACKAGE OUTLINE
19
SOLDERING
19.1
Introduction to soldering surface mount
packages
19.2
Reflow soldering
19.3
Wave soldering
19.4
Manual soldering
19.5
Suitability of surface mount IC packages for
wave and reflow soldering methods
20
DEFINITIONS
21
LIFE SUPPORT APPLICATIONS
2000 Jan 04
3
Philips Semiconductors
Preliminary specification
Multi-channel filter DAC
UDA1328T
1
FEATURES
1.1
General
2.7 to 3.6 V power supply
5 V tolerant TTL compatible inputs
Selectable control via L3 microcontroller interface or via
static pin control
Multi-channel integrated digital filter plus non-inverting
Digital-to-Analog Converter (DAC)
Supports sample frequencies between 5 and 100 kHz
Digital silence detection (output)
Slave mode only applications
No analog post filtering required for DAC
Easy application.
1.2
Multiple format input interface
I
2
S-bus, MSB-justified and LSB-justified format
compatible (in L3 mode)
I
2
S-bus and LSB-justified format compatible
1f
s
input format data rate.
1.3
Multi-channel DAC
6-channel DAC with power on/off control
Digital logarithmic volume control via L3; volume can be
set for each of the channels individually
Digital de-emphasis for 32, 44.1, 48 and 96 kHz f
s
via
L3 and, for 32, 44.1 and 48 kHz in static mode
Soft or quick mute via L3
Output signal polarity control via L3 microcontroller
interface.
1.4
Advanced audio configuration
6-channel line output (under L3 volume control)
A stereo differential output (channel 1 and channel 2) for
improved performance
High linearity, wide dynamic range, low distortion.
2
APPLICATIONS
This multi-channel DAC is eminently suitable for DVD like
applications in which 5.1 channel encoded signals are
used.
3
GENERAL DESCRIPTION
The UDA1328 is a single-chip 6-channel DAC employing
bitstream conversion techniques, which can be used either
in L3 microcontroller mode or in static pin mode.
The UDA1328 supports the I
2
S-bus data format with word
lengths of up to 24 bits, the MSB-justified data format with
word lengths of up to 24 bits and the LSB-justified serial
data format with word lengths of 16, 18, 20 and 24 bits.
All digital sound processing features can be controlled with
the L3 interface e.g. volume control, selecting digital
silence type, output polarity control and mute. Also system
features such as power control, digital silence detection
mode and output polarity control.
Under static pin control, via static pins, the system clock
can be set to either 256f
s
or 384f
s
support, digital
de-emphasis can be set, there is digital mute and the
digital input formats can also be set.
4
ORDERING INFORMATION
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
UDA1328T
SO32
plastic small outline package; 32 leads; body width 7.5 mm
SOT287-1
2000 Jan 04
4
Philips Semiconductors
Preliminary specification
Multi-channel filter DAC
UDA1328T
5
QUICK REFERENCE DATA
Notes
1. The output voltage scales proportionally with the power supply voltage.
2. In this case the two outputs per channel (for channels 1 and 2) are combined.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supplies
V
DDA
analog supply voltage
2.7
3.3
3.6
V
V
DDD
digital supply voltage
2.7
3.3
3.6
V
I
DDA
analog supply current
6 channels active
-
28
-
mA
I
DDD
digital supply current
-
11
-
mA
T
amb
ambient temperature
-
40
-
+85
C
DAC: channels 1 and 2 differential
V
o(rms)
output voltage (RMS value)
notes 1 and 2
-
2
-
V
(THD + N)/S
total harmonic distortion plus
noise-to-signal ratio
at 0 dB
f
s
= 48 kHz
-
-
95
-
88
dB
f
s
= 96 kHz
-
-
90
-
dB
at
-
60 dB; A-weighted
f
s
= 48 kHz
-
-
46
-
dB
f
s
= 96 kHz
-
-
44
-
dB
S/N
signal-to-noise ratio
code = 0; A-weighted
f
s
= 48 kHz
-
106
-
dB
f
s
= 96 kHz
-
104
-
dB
DAC: channels 3 to 6 (channels 1 and 2 non-differential)
V
o(rms)
output voltage (RMS value)
note 1
-
1
-
V
(THD + N)/S
total harmonic distortion plus
noise-to-signal ratio
at 0 dB
f
s
= 48 kHz
-
-
90
-
83
dB
f
s
= 96 kHz
-
-
85
-
dB
at
-
60 dB; A-weighted
f
s
= 48 kHz
-
-
43
-
dB
f
s
= 96 kHz
-
-
41
-
dB
S/N
signal-to-noise ratio
code = 0; A-weighted
f
s
= 48 kHz
-
103
-
dB
f
s
= 96 kHz
-
101
-
dB
cs
channel separation
-
100
-
dB
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