Page 1
MOSA ELECTRONICS
MS6313
Stereo Audio DAC
- 1 -
www.mosanalog.com.tw
FEATURES
• Excellent Power Supply Rejection Ratio(PSRR) •Easy application :
• Voltage Output single 2.8 to 5.5 rail power supply
• Space saving package(SOP8) output and bias current are proportional to supply voltage
• Low power consumption integrated current-to-voltage converter
• Low total harmonic distortion
• Wide dynamic range(16-bit resolution)
• No zero crossing distortion
• Wide operating tempera t ure range(-40℃ to 85℃)
• Internal bias current ensures maximum dynamic range
• Fast setting time permits 2*, 4*, and 8* oversampling(serial input) or double speed operation at 4* oversampling
• Compatible with most of the Japanese input formats; time multiplexed, two's complement, TTL
• The full scale output voltage can be mask optioned
• Cost efficient
APPLICATIONS
VCD Player, DVD Player, CD-ROM, DVD-ROM, CD-RW, DVD-RW, Motherboard.
MP3, PDA, Portable Digital Audio.
DESCRIPTION
The MS6313 is a 16-bit voltage-output Digital-to-Analog Converter(DAC). The MS6313 is with excellent Power
Supply Rejection Ratio(PSRR). It is fabricated in a 0.8
µ
m CMOS process and features extremely low power dissipation,
small package size and easy application. The accuracy of the matched coarse current sources, combined with the unique
symmetrical decoding method, preclude zero-crossing distortion and ensures high quality audio reproduction. These
unique features, combined with its exceptional performance, make the MS6313 ideally suited for use in digital audio
equipment. MS6313 is pin and function compatible with the Philips, TDA1311.
PINNING
Symbol Pin Description
BCK
1
bit clock input
WS
2
word select input
DATA
3
data input
GND
4
ground
VDD
5
positive supply voltage
VOL
6
left channel output
Cap
7
Cap
VOR
8
right channel out put
7
6
5
8
2
3
4
1
MS6313
V
OR
Cap
V
OL
V
DD
BCK
WS
DATA
GND
Pin configuration
Pin 7 : Capacitor = 10
µ
F (ripple rejection)
Page 2
MOSA ELECTRONICS
MS6313
Stereo Audio DAC
- 2 -
www.mosanalog.com.tw
BLOCK DIAGRAM
LEFT OUTPUT LATCH
LEFT BIT SWITCHES
11-BIT
PASSIVE
DIVIDER
32 (5-BIT)
MATCHED
CURRENT
SOURCES
Iref
RIGHT OUTPUT LATCH
RIGHT BIT SWITCHES
32 (5-BIT)
MATCHED
CURRENT
SOURCE
11-BIT
PASSIVE
DIVIDER
Iref
LEFT INPUT LATCH
RIGHT INPUT LATCHCONTROL
&
TIMING
Vref
Vref
R1
R2
REFERENCE
SOURCE
IBLIref I
BR
I
BL
I
BR
-
+
-
+
1
2
3
BCK
WS
DATA
6
8
V
OUT
left
V
OUT
right
5
V
DD
4
GND
OP1
OP2
100nF
Vref
2K
2K
1uF
7 nc / Cap
Fig.1 Block diagram.
LIMITING VALUES
Symbol Parameter Min Max Unit
V
DD
Positive Supply Voltage - 6 V
Tsig Storage Temperature Range -55 +150
℃
T
XTAL
Maximum Crystal Temperature - +150
℃
T
AMB
Operating Ambient Temperature Range -40 +85
℃
Ves Electrostatic Handling -2000 2000 V
cap
10uF
Page 3
MOSA ELECTRONICS
MS6313
Stereo Audio DAC
- 3 -
www.mosanalog.com.tw
ELECTRICAL CHARACTERISTICS
(Ta=25℃, VDD=5V)
Symbol Parameter Conditions Min Typ Max Unit
V
DD
Positive Supply Voltage
2.8 5 5.5 V
I
DD
Operating Current at code 0000H - 3.4 6.0 mA
DIGITAL INPUTS (WS, BCK, DATA)
Symbol Parameter Conditions Min Typ Max Unit
l
I IL l
Input Leakage Current LOW V
I
=
0.8V - - 10
µ
A
l
I IH l
Input Leakage Current HIGH V
I
=
2.4V - - 10
µ
A
f
BCK
Input Clock Frequency - - 18.4 MHz
BR Bit Rate Data Input (Pin 3) - - 18.4 Mbits/s
f
WS
Word Select Input (Pin 2) - - 384 kHz
t
r
Rise Time - - 12 ns
t
f
Fall Time - - 12 ns
t
C
r
Bit Clock Cycle Time 54 - - ns
t
HB
Bit Clock High Time 15 - - ns
t
LB
Bit Clock Low Time 15 - - ns
t
SD
Data Set-up Time 12 - - ns
t
HD
Data Hold Time to Bit Clock 2 - - ns
t
HW
Word Select Hold Time 2 - - ns
t
SW
Word Select Set-up Time 12 - - ns
ANALOG OUTPUTS (VOL,VOR)
Symbol Parameter Conditions Min Typ Max Unit
Res Resolution - - 16 bits
VFS Full Scale Output Voltage note 1 1.8 2.0 2.2 V
T
CFS
Full Scale Temperature Coefficient
at Analog Outputs ; V
OL
, VOR
-
±
400 -
10
-
16
VDC Output Bias - 2.5 - V
THD Total Harmonic Distortion including noise - -68 -63 dB
at 0 dB; note 2 - 0.04 0.07
﹪
THD Total Harmonic Distortion including noise - -30 -24 dB
at -60 dB; note 2 - 3 6
﹪
CS Channel Separation 75 80 - dB
l
d I
O l
Unbalance Between Outputs note 2 - 0.2 0.3 dB
l
t
d
l
Time Delay Between Outputs -
±
0.2 - µs
S/N Signal-to-Noise Ratio
a-weighted at code
0000H
86 92 - dB
Note : 1.The full scale output voltage can be mask optioned as 2.5V, 3V, 3.5V and 4V.
2.Measured with 1kHz sinewave generated at sampling rate of 192 kHz.
Page 4
MOSA ELECTRONICS
MS6313
Stereo Audio DAC
- 4 -
www.mosanalog.com.tw
TIMING AND DATA FORMAT
The MS6313 accepts input serial data formats of 16-bit word length. Left and right data words are time
multiplexed. The MSB (bit 1) must always be first. The format of data input is shown in Figs. 2 and 3. With a HIGH
level on the word select input (WS), data is placed in the left input register and with LOW level on the WS input, data is
placed in the right register (Fig. 1). The data in the input registers are simultaneously latched in the output registers
which control the bit switches. Internal bias currents I
BL
and IBR are each added to the full scale output current IFS in
order to achieve the maximum dynamic range at the outputs of OP1 and OP2(Fig. 1). The reference voltage Vref (Fig. 1)
is approximately 2/3 V
DD
. In this way the maximum dynamic range is achieved over the entire power supply range.
RIGHT
WS
BCK
DATA
LSB MSB
trt
HBtf
t
cr
t
LB
t
HW
t
SW
LEFT
t
SD
t
HD
Fig.2 Timing and input signals.
012 15 14 13 210
MSB LSB
15 14 13 210
MSB LSB
RIGHT
LEFT
WS
BCK
DATA
Fig.3 Format of input signals.
MEASUREMENT BLOCK DIAGRAM
R-ch
L-ch
AC Level (Vrms)
THD
THD+N
Generate
sinewave pattern for
BCK.WS.DATA
MS6313
MS6308
f = 1 kHz , 2Vp-p
sinewave
Pattern
Generator
DAC OPAmp
Analysis
Equipment
NOTE : THD and THD+N is measured by HP AUDIO ANALYZER and FFT Analysis.
Page 5
MOSA ELECTRONICS
MS6313
Stereo Audio DAC
- 5 -
www.mosanalog.com.tw
APPLICATION INFORMATION
Basic application example
A typical example of a CD-application with the MS6313 is shown in Fig.4. It features typical decoupling components
and a second-order analog post-filter (smoothing filter) stage providing a line output.
BCK
WS
DATA
GND
VoR
Cap
VoL
V
DD
MS6313
50k
MS6308
50k
420pF
10
Ω
V
DD
47uF 0.1uF
50k
MS6308
50k
420pF
100nF
100nF
1
2
3
45
6
7
8
Headphone
(32Ω)
Headphone
(32Ω)
10uF
Fig.4 Example of a 2nd order filter application.
Note : No external capacitor loading is allowed at the output pins 6 and 8.
MP3 digital to analog converting solution. Fig.5 , 6
BCK
WS
DATA
GND
VoR
CAP
VoL
V
DD
MS6313
100uF
MS6308
68pF
56k
22k22k
1nF
15k
1.2nF
1uF
100k 1uF
100k10
Ω
V
DD
V
REF
47uF 0.1uF
10uF
f
-3dB
= 17.5kHz
DC
gain
= 1.5
V
DAC out p-p
= 1.32V
V
out p-p
= 1.98V
For VDD = 3.3V
Headphone
(32Ω)
Fig.5 A third order lowpass filter ( Smoothing filter ) for DAC output.
Page 6
MOSA ELECTRONICS
MS6313
Stereo Audio DAC
- 6 -
www.mosanalog.com.tw
0.1uF
BCK
WS
DATA
GND
VoR
CAP
VoL
V
DD
MS6313
1
2
3
45
6
7
8
47uF
MS6308
1
2
3
DAC Headphone Driver
22k
450pF
50k
50k
10uF
V
REF
15k
15k
20k
470pF
0.1uF
7
5
6
47uF
10uF
SUNPLUS
SPCA751
STMicroelectronics
STA013
MP3 DECODER
1.2V
P-P
1.6V
P-P
Headphone
(32
Ω
)
PHONE JACK
AV
DD
2.2k
100k
10
Ω
3.3V
47uF 0.1uF
50k
3V
Power
On/Off
Fig.6 A first order lowpass filter for DAC output.
VCD , DVD Player digital to analog converting solution. Fig. 7
BCK
WS
DATA
GND
VoR
CAP
VoL
V
DD
MS6313
1
2
3
45
6
7
8
DAC Dual Operational Amplifier
100k 1uF
180pF
(2.0 Vrms)
4558
1
2
3
51k
V
REF
18k
18k
51k
7
5
6
10k
V
OR
8
4
10uF
V
CC
=12V
V
OL
10k
10uF
1uF
1uF
180pF
100k
10uF
(0.707) Vrms
V
DD
=5V
Fig.7 A first order lowpass filter for DAC output.
Page 7
MOSA ELECTRONICS
MS6313
Stereo Audio DAC
- 7 -
www.mosanalog.com.tw
EXTERNAL DIMENSIONS
1.27
0.42
6.0 3.9
4.8
1.4 0.22 1.27 0.42 0.23
0.68
14
58
TAPE AND REEL
(Unit : mm)
3.0
3.6
12.0
6.9
8.0
5.5
1.75
5.4
2.0
4.0
1.5+0.1/-0.0 DIA
0.5 Radius Typical1.5 MIN
0.30
0.3R MAX
1.7
2.0
0.05
0.05
0.05
0.3
ORDERING INFORMATION
Part
Number
Packaging
Marking
Package
Marking
Printing
Transport
Media
DESCRIPTION
Tape and Reel
MS6313 MS6313AS SOP8 Ink
Tube
MS 6313 A S
Package Type
Version
Product Number
MOSA Abbreviation
SOP 8 : Plastic small outline package ; 8 leads.
Unit : mm
Tolerance : 0.1mm
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