PHILIPS UDA1320ATS

INTEGRATED CIRCUITS
DATA SHEET
UDA1320ATS
Low-cost stereo filter DAC
Preliminary specification
Supersedes data of 1999 Oct 11
File under Integrated Circuits, IC01
2000 Jan 10
Philips Semiconductors
Preliminary specification
Low-cost stereo filter DAC
UDA1320ATS
CONTENTS
1
FEATURES
1.1
1.2
1.3
1.4
General
Multiple format input interface
DAC digital sound processing
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
8.2
8.3
8.4
8.5
8.6
8.7
8.8
System clock
Application modes
Multiple format input interface
Static pin mode
Pin compatibility
Interpolation filter (DAC)
Noise shaper
Filter-Stream DAC
9
L3 INTERFACE DESCRIPTION
9.1
9.2
9.3
The L3 interface
Data transfer mode
Programming the features
10
LIMITING VALUES
11
HANDLING
12
QUALITY SPECIFICATION
13
THERMAL CHARACTERISTICS
14
DC CHARACTERISTICS
15
AC CHARACTERISTICS
15.1
15.2
Analog
Digital
16
APPLICATION INFORMATION
17
PACKAGE OUTLINE
18
SOLDERING
18.1
18.2
18.3
18.4
Introduction
Reflow soldering
Wave soldering
Repairing soldered joints
19
DEFINITIONS
20
LIFE SUPPORT APPLICATIONS
2000 Jan 10
2
Philips Semiconductors
Preliminary specification
Low-cost stereo filter DAC
1
UDA1320ATS
FEATURES
1.1
General
• Low power consumption.
• 2.7 to 3.6 V power supply.
• Selectable control via L3 microcontroller interface or via
static pin control.
• 256, 384 and 512fs system clock (fsys), selectable via
the L3 interface or 256 and 384fs clock mode via static
pin control
2
• supports sampling frequencies from 16kHz to 48kHz.
• Portable digital audio equipment, see Fig.8.
• Integrated digital filter plus non inverting DAC
Digital-to-Analog Converter (DAC).
• Set-top boxes
• Easy application and no analog post filtering required for
DAC.
3
• Slave mode only applications.
•
Multiple format input interface
I2S-bus,
MSB-justified and LSB-justified 16,18 and 20
bits format compatible (in L3-mode).
The UDA1320ATS/N2 supports the I2S-bus data format
with word lengths of up to 20 bits, the MSB-justified data
format with word lengths of up to 20 bits and the
LSB-justified serial data format with word lengths of 16,
18 and 20 bits.
• I2S-bus and LSB-justified 16,18 and 20 bits format
compatible in static mode.
• 1fs input format data rate.
1.3
The UDA1320ATS/N2 can be used in two modes, either
L3-mode or static pin mode.
DAC digital sound processing
• Digital logarithmic volume control via L3.
In the L3-mode, all digital sound processing features must
be controlled via the L3 interface, including the selection of
the system clock setting.
• Digital de-emphasis for 32, 44.1 and 48 kHz fs via
L3 or 44.1 kHz fs via static pin control.
• Soft mute via static pin control or via L3 interface.
1.4
In the two static-modes, the UDA1320ATS/N2 can be
operated in the 256fs and 384fs system clock mode. The
mute, de-emphasis for 44.1 kHz and 4 digital input formats
(I2S and 16, 18, 20 bits LSB formats) can be selected via
static pins. The L3 interface cannot be used in this
application mode, also, volume control is not available in
this mode.
Advanced audio configuration
• Stereo line output (under L3 volume control)
• High linearity, wide dynamic range, low distortion.
4
GENERAL DESCRIPTION
The UDA1320ATS/N2 is a single-chip non inverting stereo
DAC employing bitstream conversion techniques. The low
power consumption and low voltage requirements make
the device eminently suitable for use in digital audio
equipment which incorporates playback functions.
• Small package size (SSOP16).
1.2
APPLICATIONS
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
NAME
UDA1320ATS
2000 Jan 10
SSOP16
DESCRIPTION
plastic shrink small outline package; 16 leads; body width 4.4 mm
3
VERSION
SOT369-1
Philips Semiconductors
Preliminary specification
Low-cost stereo filter DAC
5
UDA1320ATS
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply
VDDA
analog supply voltage
2.7
3.3
3.6
V
VDDD
digital supply voltage
2.7
3.3
3.6
V
IDDA
DAC supply current
−
6.5
−
mA
IDDD
digital supply current
−
3.0
−
mA
Tamb
ambient temperature
−40
−
+85
°C
−
1.0
−
V
DAC
Vo(rms)
output voltage (RMS value)
note 1, 2
(THD + N)/S
total harmonic distortion plus
noise-to-signal ratio
at 0 dB
−
−90
−85
dB
at −60 dB; A-weighted
−
−38
−35
dB
S/N
signal-to-noise ratio
code = 0; A-weighted
−
100
95
dB
αcs
channel separation
−
100
−
dB
Tamb
ambient temperature
−40
−
+85
°C
Notes
1. the output voltage has been changed with respect to the UDA1320TZ/N1.
2. the output voltage scales linearly with the power supply voltage.
6
BLOCK DIAGRAM
VSSD
VDDD
handbook, full pagewidth
4
BCK
WS
DATAI
7
11
1
2
3
DIGITAL INTERFACE
UDA1320A
SYSCLK
5
6
CONTROL
INTERFACE
10
9
8
APPSEL
APPL0
APPL1
APPL2
APPL3
VOLUME/MUTE/DE-EMPHASIS
INTERPOLATION FILTER
NOISE SHAPER
VO(L)
DAC
14
13
15
VDDA
VSSA
Fig.1 Block diagram.
2000 Jan 10
16
DAC
4
12
VREF(DAC)
VO(R)
MGM816
Philips Semiconductors
Preliminary specification
Low-cost stereo filter DAC
7
UDA1320ATS
PINNING
SYMBOL
8
PIN
FUNCTIONAL DESCRIPTION
8.1
DESCRIPTION
System clock
The UDA1320ATS/N2 operates in slave mode only. This
means in all applications the system devices must provide
the system clock. The system frequency is selectable and
depends on the mode of operation.
BCK
1
bit clock
WS
2
word select
DATAI
3
data input
VDDD
4
digital power supply
VSSD
5
digital ground
SYSCLK
6
system clock: 256fs, 384fs, 512fs
APPSEL
7
application mode select
APPL3
8
application pin 3
APPL2
9
application pin 2
APPL1
10
application pin 1
APPL0
11
application pin 0
VREF(DAC)
12
DAC reference voltage
VDDA
13
analog supply voltage
VO(L)
14
left output voltage
VSSA
15
analog ground
VO(R)
16
right output voltage
The options are 256fs, 384fs and 512fs for the L3 mode
and 256fs plus 384fs for the static mode. The system clock
must be locked in frequency to the digital interface input
signals.
The UDA1320ATS/N2 supports sampling frequencies
from 16kHz up to 48kHz
8.2
Application modes
The application mode can be set with the tri-value
APPSEL pin, to L3 mode (APPSEL = VSSD) or to either of
two static modes (APPSEL = 0.5VDDD or
APPSEL = VDDD). See Table 1 for APPL0 to APPL3 pin
functions (active = HIGH).
Table 1
Selection modes via APPSEL (note 1)
APPSEL
PIN
VSSD
handbook, halfpage
0.5VDDD
(384fs)
VDDD
(256fs)
BCK 1
16 VO(R)
APPL0
TEST
WS 2
15 VSSA
APPL1
L3CLOCK
DEEM
DEEM
DATAI 3
14 VO(L)
APPL2
L3MODE
SF0
SF0
13 VDDA
APPL3
L3DATA
SF1
SF1
VDDD 4
UDA1320A
VSSD 5
MUTE
MUTE
12 VREF(DAC)
SYSCLK 6
11 APPL0
APPSEL 7
10 APPL1
APPL3 8
9
For example, in static pin control mode, the output signal
can be soft muted by setting APPL0 HIGH. De-emphasis
can be switched on for 44.1 kHz by setting APPL1 HIGH.
APPL1 LOW will disable de-emphasis.
APPL2
Note that when L3 interface is used, an L3 initialisation
must be done when the IC is powered up!
MGM817
In L3 mode pin APPL0 must be set to LOW.
Fig.2 Pin configuration.
2000 Jan 10
5
Philips Semiconductors
Preliminary specification
Low-cost stereo filter DAC
8.3
UDA1320ATS
Multiple format input interface
IMPORTANT: UDA1320ATS/N2 differs from the
UDA1320TZ/N1 with respect to:
L3 mode:
• in the static mode 384fs is supported instead of 512fs.
• I2S-bus with data word length of up to 20 bits
• the output voltage of the DAC. In the UDA1320TZ/N1
this is 800mVrms at 3.0V, now it is 1Vrms at 3.3V power
supply
• MSB-justified format with data word length up to 20 bits
• LSB-justified format with data word length of 16,
18 or 20 bits.
8.6
8.4
Static pin mode
The digital filter interpolates from 1 to 128fs by cascading
a recursive filter and a FIR filter, see Table 3.
The UDA1320ATS/N2 supports the following data input
name formats in the static pin mode (via SF0 and SF1):
• I2S bus with data word length of up to 20 bits
Table 3
• LSB-justified format with data word length of 16,
18 or 20 bits.
Pass-band ripple
8.7
SF0
SF1
0
0
LSB-justified 16 bits
0
1
LSB-justified 18 bits
1
0
LSB-justified 20 bits
1
1
8.8
For BCK and WS holds that the BCK frequency must be
equal or smaller then 64 times WS, or fBCK =< 64*fWS in
both L3 and static mode.
Pin compatibility
In L3 interface mode the UDA1320ATS/N2 can be used on
boards that are designed for the UDA1322. The software
for UDA1322 can be used for the UDA1320ATS/N2 to
control de-emphasis, volume control and mute and also
the status settings like system clock setting and input data
format.
2000 Jan 10
0 to 0.45fs
±0.1
>0.55fs
−50
0 to 0.45fs
108
Noise shaper
Filter-Stream DAC
The FSDAC is a semi-digital reconstruction filter that
converts the 1-bit data stream of the noise shaper to be
analog output voltage. The filter coefficients are
implemented as current sources and are summed at
virtual ground of the output operational amplifier. In this
way very high signal-to-noise performance and low clock
jitter sensitivity is achieved. A post-filter is not needed due
to the inherent filter function of the DAC. On-board
amplifiers convert the FSDAC output current to an output
voltage signal capable of driving a line output.
The formats are illustrated in Fig.3. Left and right
data-channel words are time multiplexed. The WS signal
must have 50% duty-factor for all LSB-justified modes.
8.5
VALUE (dB)
The 3rd-order noise shaper operates at 128fs. It shifts
in-band quantization noise to frequencies well above the
audio band. This noise shaping technique enables high
signal-to-noise ratios to be achieved. The noise shaper
output is converted into an analog signal using a
Filter-Stream DAC (FSDAC).
Input format selection using SF0 and SF1
I2S
CONDITION
Stop band
Dynamic range
The UDA1320ATS/N2 also accepts double speed data for
double speed data monitoring purposes.
FORMAT
Interpolation filter characteristics
ITEM
See Table 2, for the static pin codes of the 4 formats,
selectable via SF0 and SF1.
Table 2
Interpolation filter (DAC)
The output voltage of the FSDAC scales linearly with the
power supply voltage.
6
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RIGHT
≥8
3
1
2
3
BCK
DATAI
MSB
B2
LSB MSB
B2
LSB MSB
INPUT FORMAT
LEFT
WS
1
2
≥8
I2S-BUS
RIGHT
≥8
3
1
2
LSB MSB
B2
≥8
3
BCK
DATAI
MSB
B2
LSB MSB
B2
Philips Semiconductors
2
Low-cost stereo filter DAC
1
handbook, full pagewidth
2000 Jan 10
LEFT
WS
MSB-JUSTIFIED FORMAT
WS
RIGHT
LEFT
16
15
2
1
16
B15 LSB
MSB
15
2
1
BCK
7
MSB
DATAI
B2
B2
B15 LSB
LSB-JUSTIFIED FORMAT 16 BITS
WS
RIGHT
LEFT
18
17
16
15
2
1
18
B17
LSB
MSB
17
16
15
2
1
B17
LSB
2
1
B19
LSB
BCK
DATAI
MSB
B2
B3
B4
B2
B3
B4
LSB-JUSTIFIED FORMAT 18 BITS
19
18
RIGHT
17
16
15
2
1
20
B19
LSB
MSB
19
18
17
16
15
BCK
DATAI
MSB
B2
B3
B4
B5
B6
B2
B3
B4
B5
B6
MBK071
LSB-JUSTIFIED FORMAT 20 BITS
Fig.3 Serial interface; input format I2S-bus.
Preliminary specification
LEFT
20
UDA1320ATS
WS
Philips Semiconductors
Preliminary specification
Low-cost stereo filter DAC
9
9.1
UDA1320ATS
L3 INTERFACE DESCRIPTION
Data transfer can only be in one direction, consisting of
input to the UDA1320ATS/N2 to program sound
processing and other functional features.
The L3 interface
The following system and digital sound processing
features can be controlled in the microcontroller mode of
the UDA1320ATS/N2:
Data bits 7 to 2 represent a 6-bit device address, bit 7
being the MSB. The address of the UDA1320ATS/N2 is
000101 (bit 7 to bit 2). If the UDA1320ATS/N2 receives a
different address, it will deselect its microcontroller
interface logic.
• System clock frequency
• Data input format
• De-emphasis for 32 kHz, 44.1 kHz and 48 kHz
9.2
• Volume
Data transfer mode
The selected address remains active during subsequent
data transfers until the UDA1320ATS/N2 receives a new
address command. The fundamental timing of data
transfers is essentially the same as in the address mode,
see Fig.6. The maximum input clock and data rate is 64 fs.
All transfers are by 8-bit bytes. Data will be stored in the
UDA1320ATS/N2 after reception of a complete byte. See
Fig.5 for a multi-byte transfer.
• Soft mute.
The exchange of data and control information between the
microcontroller and the UDA1320ATS/N2 is accomplished
through a serial hardware interface comprising the
following pins:
• L3DATA
• L3MODE
• L3CLOCK.
Table 4
Information transfer through the microcontroller bus is
organized in accordance with the L3 format, in which two
different modes of operation can be distinguished; address
mode and data transfer mode (see Figs 4 and 6).
The address mode is required to select a device
communicating via the L3 bus and to define the
destination registers for the data transfer mode.
Selection of data transfer
BIT 1
BIT 0
TRANSFER
0
0
DATA (volume, de-emphasis, mute)
0
1
not used
1
0
STATUS (system clock frequency,
data input format)
1
1
not used
handbook, full pagewidth
L3MODE
t su(L3)A
t h(L3)A
t su(L3)A
tCLK(L3)L
tCLK(L3)H
t h(L3)A
L3CLCK
Tcy(CLK)(L3)
t su(L3)DA
L3DATA
t h(L3)DA
BIT 7
BIT 0
MBK072
Fig.4 Timing address mode.
2000 Jan 10
8
Philips Semiconductors
Preliminary specification
Low-cost stereo filter DAC
UDA1320ATS
tstp(L3)
handbook, full pagewidth
L3MODE
L3CLK
L3DATA
address
data byte #1
data byte #2
address
MBK074
Fig.5 Multi-byte transfer.
handbook, full pagewidth
tstp(L3)
tstp(L3)
L3MODE
tCLK(L3)L
Tcy(CLK)L3
tCLK(L3)H
tsu(L3)D
th(L3)D
L3CLCK
th(L3)DA
L3DATA
write
tsu(L3)DA
BIT 0
th(L3)DA
BIT 7
MBK073
Fig.6 Timing for data transfer mode.
The sound feature values are stored in independent
registers. The first selection of the registers is achieved by
the choice of data type that is transferred (‘STATUS’ or
‘DATA’ transfer). This is performed in the address mode
using bit 1 and bit 0, see Table 4,. The settings that can be
controlled with ‘STATUS’ transfer are given in table 5, and
2000 Jan 10
the settings that can be controlled using ‘DATA’ transfer
are given in table 6.
The second selection is performed by the 2 MSBs of the
data byte (bit 7 and bit 6). The other bits in the data byte
(bit 5 to bit 0) is the value that is placed in the selected
registers.
9
Philips Semiconductors
Preliminary specification
Low-cost stereo filter DAC
Table 5
UDA1320ATS
Data transfer of type ‘status’
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
REGISTER SELECTED
0
0
SC1
SC0
IF2
IF1
IF0
0
System Clock frequency (1 : 0);
data Input Format (2 : 0)
1
0
0
0
0
0
0
0
reserved
Table 6
Data transfer of type ‘data’
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
0
0
VC5
VC4
VC3
VC2
VC1
VC0
REGISTER SELECTED
Volume Control (5 : 0)
0
1
0
0
0
0
0
0
reserved
1
0
0
DE1
DE0
MT
0
0
DE-emphasis (1 : 0); MuTe
1
1
0
0
0
0
0
1
default setting
9.3
Programming the features
Volume control: a 6-bit value to program the volume
attenuation (VC5 to VC0), 0 to −∞ dB in steps of 1 dB.
When the data transfer of type ‘STATUS’ is selected, the
features SYSTEM CLOCK FREQUENCY and DATA
INPUT FORMAT can be controlled.
Table 9
System clock frequency: a 2-bit value to select the used
external clock frequency.
Table 7
SC1
System clock settings
SC0
FUNCTION
Volume settings
VC5
VC4
VC3
VC2
VC1
VC0
VOLUME (dB)
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
1
0
−1
0
0
0
0
1
1
−2
0
0
512fs
:
:
:
:
:
:
:
0
1
384fs
1
1
1
1
0
1
−60
1
0
256fs
1
1
1
1
1
1
−∞
1
1
not used
Data input format: a 3-bit value to select the data format.
De-emphasis: a 2-bit value to enable the digital
de-emphasis filter.
Table 8
Table 10 De-emphasis settings
Data input format settings
IF2
IF1
IF0
0
0
0
0
0
1
DE1
DE0
I2S bus
0
0
no de-emphasis
LSB-justified, 16 bits
0
1
de-emphasis, 32 kHz
0
de-emphasis, 44.1 kHz
1
de-emphasis, 48 kHz
FUNCTION
0
1
0
LSB -justified, 18 bits
1
0
1
1
LSB-justified, 20 bits
1
1
0
0
MSB-justified
1
0
1
not used
1
1
0
not used
1
1
1
not used
Mute: a 1-bit value to enable the digital mute.
Table 11 Mute setting
MT
When the data transfer of type ‘DATA’ is selected, the
features VOLUME, DE-EMPHASIS and MUTE can be
controlled.
2000 Jan 10
FUNCTION
10
FUNCTION
0
no muting
1
muting
Philips Semiconductors
Preliminary specification
Low-cost stereo filter DAC
UDA1320ATS
10 LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
VDDD
digital supply voltage
note 1
−
5.0
V
VDDA
analog supply voltage
note 1
−
5.0
V
Txtal(max)
maximum crystal temperature
−
150
°C
Tstg
storage temperature
−65
+125
°C
Tamb
ambient temperature
−40
+85
°C
Ves
electrostatic handling
note 2
−3000
+3000
V
note 3
−300
+300
V
Notes
1. All supply connections must be made to the same power supply.
2. Equivalent to discharging a 100 pF capacitor via a 1.5 kΩ series resistor, except pin 14 which must be specified to
−2500V (MIN) and +2500V (MAX).
3. Equivalent to discharging a 200 pF capacitor via a 2.5 µH series inductor.
11 HANDLING
Inputs and outputs are protected against electrostatic discharge in normal handling. However, to be totally safe, it is
desirable to take normal precautions appropriate to handling MOS devices.
12 QUALITY SPECIFICATION
In accordance with “SNW-FQ-611-E”. The number of the quality specification can be found in the “Quality Reference
Handbook”. The handbook can be ordered using the code 9397 750 00192.
13 THERMAL CHARACTERISTICS
SYMBOL
Rth(j-a)
2000 Jan 10
PARAMETER
CONDITIONS
thermal resistance from junction to ambient
in free air
11
VALUE
UNIT
190
K/W
Philips Semiconductors
Preliminary specification
Low-cost stereo filter DAC
UDA1320ATS
14 DC CHARACTERISTICS
VDDD = VDDA = 3.3 V; Tamb = 25 °C; RL = 5 kΩ. All voltages referenced to ground (pins 5 and 15) unless otherwise
specified.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP.
MAX
UNIT
Supply
VDDA
DAC analog supply voltage
note 1
2.7
3.3
3.6
V
VDDD
digital supply voltage
note 1
2.7
3.3
3.6
V
IDDA
analog supply current
operation mode
−
6.5
−
mA
IDDD
digital supply current
operation mode
−
3.0
−
mA
Digital input pins
VIH
HIGH-level input voltage
0.8VDDD
−
−
V
VIL
LOW-level input voltage
−
−
0.2VDDD
V
ILI
input leakage current
−
−
1
µA
pF
Ci
input capacitance
−
−
10
VIH
HIGH-level input voltage
−
−
VDDD + 0.5 V
VIL
LOW-level input voltage
−0.5
−
−
V
DAC
Vref
reference voltage
with respect to VSSA
0.45VDDA
0.5VDDA
0.55VDDA
V
Io(max)
maximum output current
(THD + N)/S < 0.1%
RL = 5 kΩ
−
0.22
−
mA
Rout
output resistance
−
0.15
2.0
Ω
RL
load resistance
3
−
−
kΩ
CL
load capacitance
−
−
50
pF
note 2
Notes
1. All supply connections must be made to the same external power supply unit.
2. When the DAC drives a capacitive load above 50 pF, a series resistance of 100 Ω must be used to prevent
oscillations in the output operational amplifier.
2000 Jan 10
12
Philips Semiconductors
Preliminary specification
Low-cost stereo filter DAC
UDA1320ATS
15 AC CHARACTERISTICS
15.1
Analog
VDDD = VDDA = 3.3 V; fi = 1 kHz; Tamb = 25 °C; RL = 5 kΩ. All voltages referenced to ground (pins 5 and 15) unless
otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
DAC
Vo(rms)
output voltage (RMS value)
∆Vo
unbalance between channels
(THD + N)/S
total harmonic distortion plus
noise-to-signal ratio
at 0 dB
at −60 dB; A-weighted
S/N
signal-to-noise ratio
code = 0; A-weighted
αcs
channel separation
PSRR
power supply ripple rejection
ratio
2000 Jan 10
fripple = 1 kHz;
Vripple(p-p) = 100 mV
13
−
1.0
−
V
−
0.1
−
dB
−
−90
−85
dB
−
−38
-35
dB
−
100
95
dB
−
100
−
dB
−
50
−
dB
Philips Semiconductors
Preliminary specification
Low-cost stereo filter DAC
15.2
UDA1320ATS
Digital
VDDD = VDDA = 2.7 to 3.6 V; Tamb = −20 to +85 °C; RL = 5 kΩ. All voltages referenced to ground (pins 5 and 15); unless
otherwise specified.
SYMBOL
Tsys
PARAMETER
system clock cycle
tCWL
LOW-level system clock pulse width
tCWH
HIGH-level system clock pulse width
CONDITIONS
MIN.
TYP.
MAX.
UNIT
fsys = 256fs
78
88
244
ns
fsys = 384fs
52
59
162
ns
fsys = 512fs
39
44
122
ns
fsys < 19.2 MHz
30
−
70
%Tsys
fsys ≥ 19.2 MHz
40
−
60
%Tsys
fsys < 19.2 MHz
30
−
70
%Tsys
fsys ≥ 19.2 MHz
40
−
60
%Tsys
Serial input data timing (see Fig.7)
Tcy(CLK)(bit)
bit clock period
300
−
−
ns
tCLKH(bit)
bit clock HIGH time
100
−
−
ns
tCLKL(bit)
bit clock LOW time
100
−
−
ns
tr
rise time
−
−
20
ns
tf
fall time
−
−
20
ns
tsu(i)(D)
data input set-up time
20
−
−
ns
th(i)(D)
data input hold time
0
−
−
ns
tsu(WS)
word selection set-up time
20
−
−
ns
th(WS)
word selection hold time
10
−
−
ns
Microcontroller interface timing (see Figs 4 and 6)
Tcy(CLK)(L3)
L3CLK
500
−
−
ns
tCLK(L3)H
L3CLK HIGH period
250
−
−
ns
tCLK(L3)L
L3CLK LOW period
250
−
−
ns
tsu(L3)A
L3MODE set-up time
addressing mode
190
−
−
ns
th(L3)A
L3MODE hold time
addressing mode
190
−
−
ns
tsu(L3)D
L3MODE set-up time
data transfer mode
190
−
−
ns
th(L3)D
L3MODE hold time
data transfer mode
190
−
−
ns
tsu(L3)DA
L3DATA set-up time
data transfer and
addressing mode
190
−
−
ns
th(L3)DA
L3DATA hold time
data transfer and
addressing mode
30
−
−
ns
tstp(L3)
L3MODE halt time
190
−
−
ns
2000 Jan 10
14
Philips Semiconductors
Preliminary specification
Low-cost stereo filter DAC
UDA1320ATS
handbook, full pagewidth
WS
th(WS)
tCLKH(bit)
tr
tsu(WS)
tf
BCLK
tCLKH(bit)
tsu(i)(D)
Tcy(CLK)(bit)
th(i)(D)
DATAI
MBK075
Fig.7 Serial interface timing.
16 APPLICATION INFORMATION
analog
supply voltage
handbook, full pagewidth
digital
supply voltage
R2
1Ω
C1
R3
1Ω
100 µF
(16 V)
system
clock
R1
SYSCLK
47 Ω
C5
C6
100 nF
(63 V)
VSSA
100 nF
(63 V)
VSSD
15
VDDA
13
5
VDDD
4
6
14
BCK
WS
DATAI
APPSEL
VO(L)
47 µF
(16 V)
1
2
7
VO(R)
APPL2
APPL3
100 Ω
left
output
R5
10 kΩ
C3
47 µF
(16 V)
16
APPL0
R4
3
UDA1320A
APPL1
C2
R6
100 Ω
right
output
R7
10 kΩ
11
10
9
12
8
VREF(DAC)
C7
100 nF
(63 V)
C4
47 µF
(16 V)
MGM818
Fig.8 Application schematic.
2000 Jan 10
15
Philips Semiconductors
Preliminary specification
Low-cost stereo filter DAC
UDA1320ATS
17 PACKAGE OUTLINE
SSOP16: plastic shrink small outline package; 16 leads; body width 4.4 mm
D
SOT369-1
E
A
X
c
y
HE
v M A
Z
9
16
Q
A2
A
(A 3)
A1
pin 1 index
θ
Lp
L
1
8
detail X
w M
bp
e
0
2.5
5 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
A
max.
A1
A2
A3
bp
c
D (1)
E (1)
e
HE
L
Lp
Q
v
w
y
Z (1)
θ
mm
1.5
0.15
0.00
1.4
1.2
0.25
0.32
0.20
0.25
0.13
5.30
5.10
4.5
4.3
0.65
6.6
6.2
1.0
0.75
0.45
0.65
0.45
0.2
0.13
0.1
0.48
0.18
10
0o
Note
1. Plastic or metal protrusions of 0.20 mm maximum per side are not included.
OUTLINE
VERSION
SOT369-1
2000 Jan 10
REFERENCES
IEC
JEDEC
EIAJ
EUROPEAN
PROJECTION
ISSUE DATE
95-02-04
99-12-27
MO-152
16
o
Philips Semiconductors
Preliminary specification
Low-cost stereo filter DAC
UDA1320ATS
• Use a double-wave soldering method comprising a
turbulent wave with high upward pressure followed by a
smooth laminar wave.
18 SOLDERING
18.1
Introduction to soldering surface mount
packages
• For packages with leads on two sides and a pitch (e):
This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our “Data Handbook IC26; Integrated Circuit Packages”
(document order number 9398 652 90011).
– larger than or equal to 1.27 mm, the footprint
longitudinal axis is preferred to be parallel to the
transport direction of the printed-circuit board;
– smaller than 1.27 mm, the footprint longitudinal axis
must be parallel to the transport direction of the
printed-circuit board.
There is no soldering method that is ideal for all surface
mount IC packages. Wave soldering is not always suitable
for surface mount ICs, or for printed-circuit boards with
high population densities. In these situations reflow
soldering is often used.
18.2
The footprint must incorporate solder thieves at the
downstream end.
• For packages with leads on four sides, the footprint must
be placed at a 45° angle to the transport direction of the
printed-circuit board. The footprint must incorporate
solder thieves downstream and at the side corners.
Reflow soldering
Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.
During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.
Several methods exist for reflowing; for example,
infrared/convection heating in a conveyor type oven.
Throughput times (preheating, soldering and cooling) vary
between 100 and 200 seconds depending on heating
method.
Typical dwell time is 4 seconds at 250 °C.
A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.
Typical reflow peak temperatures range from
215 to 250 °C. The top-surface temperature of the
packages should preferable be kept below 230 °C.
18.3
18.4
Fix the component by first soldering two
diagonally-opposite end leads. Use a low voltage (24 V or
less) soldering iron applied to the flat part of the lead.
Contact time must be limited to 10 seconds at up to
300 °C.
Wave soldering
Conventional single wave soldering is not recommended
for surface mount devices (SMDs) or printed-circuit boards
with a high component density, as solder bridging and
non-wetting can present major problems.
When using a dedicated tool, all other leads can be
soldered in one operation within 2 to 5 seconds between
270 and 320 °C.
To overcome these problems the double-wave soldering
method was specifically developed.
If wave soldering is used the following conditions must be
observed for optimal results:
2000 Jan 10
Manual soldering
17
Philips Semiconductors
Preliminary specification
Low-cost stereo filter DAC
18.5
UDA1320ATS
Suitability of surface mount IC packages for wave and reflow soldering methods
SOLDERING METHOD
PACKAGE
REFLOW(1)
WAVE
BGA, LFBGA, SQFP, TFBGA
not suitable
suitable(2)
HBCC, HLQFP, HSQFP, HSOP, HTQFP, HTSSOP, SMS
not
PLCC(3), SO, SOJ
suitable
LQFP, QFP, TQFP
SSOP, TSSOP, VSO
suitable
suitable
suitable
not
recommended(3)(4)
suitable
not
recommended(5)
suitable
Notes
1. All surface mount (SMD) packages are moisture sensitive. Depending upon the moisture content, the maximum
temperature (with respect to time) and body size of the package, there is a risk that internal or external package
cracks may occur due to vaporization of the moisture in them (the so called popcorn effect). For details, refer to the
Drypack information in the “Data Handbook IC26; Integrated Circuit Packages; Section: Packing Methods”.
2. These packages are not suitable for wave soldering as a solder joint between the printed-circuit board and heatsink
(at bottom version) can not be achieved, and as solder may stick to the heatsink (on top version).
3. If wave soldering is considered, then the package must be placed at a 45° angle to the solder wave direction.
The package footprint must incorporate solder thieves downstream and at the side corners.
4. Wave soldering is only suitable for LQFP, TQFP and QFP packages with a pitch (e) equal to or larger than 0.8 mm;
it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.65 mm.
5. Wave soldering is only suitable for SSOP and TSSOP packages with a pitch (e) equal to or larger than 0.65 mm; it is
definitely not suitable for packages with a pitch (e) equal to or smaller than 0.5 mm.
19 DEFINITIONS
Data sheet status
Objective specification
This data sheet contains target or goal specifications for product development.
Preliminary specification
This data sheet contains preliminary data; supplementary data may be published later.
Product specification
This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
20 LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
2000 Jan 10
18
Philips Semiconductors
Preliminary specification
Low-cost stereo filter DAC
UDA1320ATS
NOTES
2000 Jan 10
19
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SCA 69
© Philips Electronics N.V. 2000
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Printed in The Netherlands
545002/25/02/pp20
Date of release: 2000
Jan 10
Document order number:
9397 750 06675