ETC MS6311

MS6311
MOSA ELECTRONICS
Stereo Audio DAC
FEATURES
‧ Voltage Output
‧Easy application :
‧
‧
‧
‧
‧
‧
Space saving package (SOP8)
Low power consumption
Low total harmonic distortion
Wide dynamic range(16-bit resolution)
No zero crossing distortion
Wide operating temperature 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
single 2.7 to 5.5 rail power supply
output and bias current are proportional to supply voltage
integrated current-to-voltage converter
APPLICATIONS
VCD Player, DVD Player, CD-ROM, DVD-ROM, CD-RW, DVD-RW, Motherboard.
DESCRIPTION
The MS6311 is a 16-bit voltage-output Digital-to-Analog Converter(DAC). The MS6311 is fabricated in a 0.8µm
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 MS6311 ideally suited for use in digital audio equipment. MS6311 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
n.c.
7
not connected
VOR
8
right channel output
BCK 1
8 VOR
WS 2
7 n.c.
DATA 3
MS6311
6 VOL
5 VDD
GND 4
Pin configuration
-1-
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MS6311
MOSA ELECTRONICS
Stereo Audio DAC
BLOCK DIAGRAM
R1
2K
I BL
-
6
+
R2
2K
I BR
LEFT BIT SWITCHES
-
RIGHT BIT SWITCHES
+
11-BIT
PASSIVE
DIVIDER
32 (5-BIT)
MATCHED
CURRENT
SOURCE
32 (5-BIT)
MATCHED
CURRENT
SOURCES
11-BIT
PASSIVE
DIVIDER
Iref
OP1
Vref
RIGHT OUTPUT LATCH
LEFT OUTPUT LATCH
VOUT
left
8
VOUT
right
OP2
Vref
Iref
I BL Iref I BR
Vref
R4 ≅ 33K
REFERENCE
SOURCE
LEFT INPUT LATCH
BCK
1
WS
2
Rref
11K
R3 ≅ 22K
5
DATA 3
RIGHT INPUT LATCH
CONTROL
&
VDD
100nF
TIMING
4
Fig.1
GND
Block diagram.
LIMITING VALUES
Symbol
VDD
Parameter
Positive Supply Voltage
Tsig
Storage Temperature Range
TXTAL
Maximum Crystal Temperature
TAMB
Operating Ambient Temperature Range
Ves
Electrostatic Handling
Min
Max
Unit
-
6
-55
+150
V
℃
-
+150
℃
-40
+85
℃
-2000
2000
V
-2-
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MS6311
MOSA ELECTRONICS
Stereo Audio DAC
ELECTRICAL CHARACTERISTICS
(Ta=25℃, VDD=5V)
Symbol
Parameter
VDD
Positive Supply Voltage
I DD
Operating Current
Conditions
Min
Typ
Max
Unit
2.7
5
5.5
V
-
3.4
6.0
mA
Min
Typ
Max
Unit
VI = 0.8V
-
-
10
VI = 2.4V
-
-
10
µA
µA
-
-
18.4
MHz
at code 0000H
DIGITAL INPUTS (WS, BCK, DATA)
Symbol
Parameter
l I IL l Input Leakage Current LOW
l I IH l Input Leakage Current HIGH
f BCK Input Clock Frequency
Conditions
BR
Bit Rate Data Input (Pin 3)
-
-
18.4
Mbits/s
fWS
Word Select Input (Pin 2)
-
-
384
kHz
tr
tf
t Cr
t HB
t LB
t SD
t HD
t HW
t SW
Rise Time
-
-
12
ns
Fall Time
-
-
12
ns
Bit Clock Cycle Time
54
-
-
ns
Bit Clock High Time
15
-
-
ns
Bit Clock Low Time
15
-
-
ns
Data Set-up Time
12
-
-
ns
Data Hold Time to Bit Clock
2
-
-
ns
Word Select Hold Time
2
-
-
ns
Word Select Set-up Time
12
-
-
ns
Min
Typ
Max
Unit
-
-
16
bits
1.8
2.0
2.2
V
ANALOG OUTPUTS (VOL,VOR)
Symbol
Parameter
Conditions
Res
Resolution
VFS
Full Scale Output Voltage
TCFS
Full Scale Temperature Coefficient
at Analog Outputs ; VOL, VOR
-
±400
-
10-
VDC
Output Bias
-
2.5
-
V
THD
Total Harmonic Distortion
including noise
-
-68
-63
at 0 dB; note 1
-
0.04
0.07
dB
﹪
including noise
-
-30
-24
at -60 dB; note 1
-
3
6
dB
﹪
75
80
-
dB
-
0.2
0.3
dB
-
±0.2
-
µs
86
92
-
dB
THD
CS
Total Harmonic Distortion
Channel Separation
l d I O l Unbalance Between Outputs
l t d l Time Delay Between Outputs
S/N
VFS=0.4VDD
Signal-to-Noise Ratio
note 1
a-weighted at code
0000H
16
Note : 1.Measured with 1kHz sinewave generated at sampling rate of 192 kHz.
-3-
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MS6311
MOSA ELECTRONICS
Stereo Audio DAC
TIMING AND DATA FORMAT
The MS6311 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 IBL 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 VDD. In this way the maximum dynamic range is achieved over the entire power supply range.
LEFT
WS
RIGHT
tr
tHB
tf
tLB
tHW
tSW
BCK
tcr
tSD
LSB
DATA
Fig.2
tHD
MSB
Timing and input signals.
LEFT
WS
RIGHT
BCK
DATA 2
1
0
15
14
13
2
1
MSB
Fig.3
0
15
LSB
MSB
14
13
2
1
0
LSB
Format of input signals.
MEASUREMENT BLOCK DIAGRAM
R-ch
Pattern
Generator
DAC
Generate
sinewave pattern for
BCK.WS.DATA
MS6311
L-ch
OPAmp
Analysis
Equipment
f = 1 kHz
2Vp-p
sinewave
AC Level(Vrms)
THD
THD+N
NOTE : THD and THD+N is measured by HP AUDIO ANALYZER and FFT Analysis.
-4-
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MS6311
MOSA ELECTRONICS
Stereo Audio DAC
APPLICATION INFORMATION
Basic application example
A typical example of a CD-application with the MS6311 is shown in Fig.4. It features typical decoupling components
and a second-order analog post-filter (smoothing filter) stage providing a line output.
420pF
1
2
BCK
VoR
WS
n.c.
50k
8
MS6308
7
3
DATA
VoL
6
4
GND
VDD
5
Headphone
(32Ω)
50k
100nF
420pF
MS6311
50k
Headphone
(32Ω)
50k
10Ω
MS6308
VDD
100nF
47uF
Fig.4
Note :
100nF
Example of a 2nd order filter application.
No external capacitor loading is allowed at the output pins 6 and 8.
EXTERNAL DIMENSIONS
4.8
8
5
Unit : mm
Tolerance : 0.1mm
6.0 3.9
1
4
1.27
0.42
0.68
1.4
0.22
1.27
0.42
-5-
0.23
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MS6311
MOSA ELECTRONICS
Stereo Audio DAC
TAPE AND REEL (Unit : mm)
2.0
0.30
0.05
0.05
1.5+0.1/-0.0 DIA
4.0
1.75
0.3R MAX
5.5
0.05
12.0 0.3
5.4
3.0
3.6
8.0
1.5 MIN
6.9
0.5 Radius Typical
2.0 1.7
ORDERING INFORMATION
Package
Part number
Packaging Marking
Transport Media
8-Pin SOP
MS6311ASTR
MS6311AS
2.5k Units Tape and Reel
8-Pin SOP
MS6311ASU
MS6311AS
100 Units Tube
8-Pin SOP (lead free)
MS6311ASGTR
MS6311ASG
2.5k Units Tape and Reel
8-Pin SOP (lead free)
MS6311ASGU
MS6311ASG
100 Units Tube
-6-
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