MOSA MS6326GTR 16-bits stereo audio dac low power consumption low voltage, excellent psrr Datasheet

MS6324/26
MOSA
16-Bits Stereo Audio DAC
16-Bits Stereo Audio DAC
Low Power Consumption
Low Voltage, Excellent PSRR
FEATURES
‧
‧
‧
‧
Operation range: 2.5V~6.5V.
Excellent Power Supply Rejection Ratio(PSRR).
Low operating current.
Low power consumption
8mW at VDD=3.3V (Full scale output ).
‧ Low distortion.
‧ No zero crossing distortion.
‧ Wide dynamic range(16-bit resolution).
‧ Voltage Output .
‧ Cost efficient.
‧ Fast setting time permits 2*, 4*, and 8* oversampling
(serial input) or double speed operation at 4*
oversampling .
‧ Output voltage swing is proportional to supply voltage
(VOPP=VDD/2).
‧ The minimum HIGH voltage of digital clocks
(WS,DATA and BCK)and the control inputs can be
1.8V at Vdd = 5V.
‧ As the power is up, the initial registers of the DAC are
0000Hex, so the DAC output will beVdd/2.
‧ Audio Format:I2S(MS6324)
Right Justified(MS6326)
‧ Space saving package SOP8, MSOP8, DFN8
APPLICATIONS
•Multimedia system
•MP3, PDA, Portable Digital Audio.
•Set top box.
DESCRIPTION
The MS6324/26 is a 16-bit voltage-output Digital-to-Analog Converter(DAC). It gives the excellent Power Supply
Rejection Ratio(PSRR). It features extremely low power dissipation, small package size and easy application. The
accuracy of the weight current sources, combined with the unique symmetrical decoding method, preclude zerocrossing distortion and ensures high quality audio reproduction. As the power is up, the initial registers of the DAC are
0000Hex, so the DAC output will beVdd/2. These unique features, combined with its exceptional performance, make
the MS6324/26 ideally suited for use in portable audio equipment. MS6326 is pin and function compatible with
MS6323.
PIN CONFIGURATION
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
VOR
7
8
Cap
Right channel output
REV 2
SOP8/MSOP8
1/13
DFN8
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MS6324/26
MOSA
16-Bits Stereo Audio DAC
BLOCK DIAGRAM
RF
IBL
6
LEFT OUTPUT LATCH
OP1
RIGHT OUTPUT LATCH
LEFT
VREF
RF
IBR
LEFT BIT SWITCHS
VOUT
RIGHT BIT SWITCHS
8
OP2
VOUT
RIGHT
VREF
16-BIT WEIGHT
CURRENT DIVIDER
16-BIT WEIGHT
CURRENT DIVIDER
IREF
IREF
REFERENCE
CURRENT
SOURCE
IBL
REFERENCE
CURRENT
SOURCE
LEFT INPUT LATCH
BCK
IBR
7
REFERENCE
SOURCE
CAP
1uF
VREF
1
4
WS
DATA
2
3
GND
RIGHT INPUT LATCH
CONTROL
&
TIMING
10uF
5
Fig.1
0.1uF
VDD
Block diagram.
ORDERING INFORMATION
Package
8-Pin SOP (lead free)
Part number
MS6324GTR
Marking
MS6324G
Transport Media
2.5k Units Tape and Reel
8-Pin SOP (lead free)
MS6324GU
MS6324G
100 Units Tube
8-Pin MSOP (lead free)
MS6324MGTR
6324G
3.5k Units Tape and Reel
8-Pin MSOP (lead free)
MS6324MGU
6324G
80 Units Tube
8-Pin DFN (lead free)
MS6324DGTR
MS6324
5k Units Tape and Reel
8-Pin SOP (lead free)
MS6326GTR
MS6326G
2.5k Units Tape and Reel
8-Pin SOP (lead free)
MS6326GU
MS6326G
100 Units Tube
8-Pin MSOP (lead free)
MS6326MGTR
6326G
3.5k Units Tape and Reel
8-Pin MSOP (lead free)
MS6326MGU
6326G
80 Units Tube
8-Pin DFN (lead free)
RoHS Compliance
MS6326DGTR
MS6326
5k Units Tape and Reel
REV 2
2/13
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MS6324/26
MOSA
16-Bits Stereo Audio DAC
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Rating
Unit
6.5
V
-2000 to 2000
V
Storage Temperature Range
-65 to 150
℃
TA
Operating Ambient Temperature Range
-40 to 85
℃
TJ
Maximum Junction Temperature
VDD
Positive Supply Voltage
VESD
Electrostatic Handling
TSTG
TS
RTHJA
Soldering Temperature, 10 seconds
Thermal Resistance from Junction to Ambient in Free Air
SOP8
MSOP8
DFN8
150
℃
260
℃
175
235
120
℃/W
OPERATING RATINGS
Symbol
VDD
Parameter
Supply Voltage
Min
Typ
Max
Unit
2.5
-
6.5
V
Min
Typ
Max
Unit
2.95
3
3.05
V
2.95
3
3.05
V
2.8
3
3.2
Vpp
6V ELECTRICAL CHARACTERISTICS
(Ta=25℃, VDD=6V, f=1kHz, Cap=1uF; unless otherwise specified)
Symbol
Parameter
Conditions
DC Characteristics
VCAP
Voltage at Cap
VDC
Output DC level
VFS
Full scale output voltage
VFS=0.5VDD
IQ
Quiescent current
At code 0000H
-
3
-
mA
IFS
Maximum operation current
VFS=0.5VDD
-
3.2
-
mA
PSRR
Power supply rejection ratio
Cap=1uF, f=100Hz
44
49
-
dB
Cap=10uF, f=100Hz
59
63
-
dB
CS
Channel separation
89
94
-
dB
AC Characteristics
Res
Resolution
-
-
16
bits
THD+N
Total harmonic distortion plus
noise
-
-68
-63
dB
-
0.04
0.068
%
S/N
Signal-to-noise ratio
89
95
-
dB
REV 2
3/13
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MS6324/26
MOSA
16-Bits Stereo Audio DAC
5V ELECTRICAL CHARACTERISTICS
(Ta=25℃, VDD=5V, f=1kHz, Cap=1uF; unless otherwise specified)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
DC Characteristics
VCAP
Voltage at Cap
2.45
2.5
2.55
V
VDC
Output DC level
2.45
2.5
2.55
V
VFS
Full scale output voltage
VFS=0.5VDD
2.3
2.5
2.7
Vpp
IQ
Quiescent current
At code 0000H
-
2.7
-
mA
IFS
Maximum operation current
VFS=0.5VDD
-
2.8
-
mA
PSRR
Power supply rejection ratio
Cap=1uF, f=100Hz
45
50
-
dB
Cap=10uF, f=100Hz
64
69
-
dB
CS
Channel separation
88
93
-
dB
AC Characteristics
Res
Resolution
-
-
16
bits
THD+N
Total harmonic distortion plus
noise
-
-68
-63
dB
S/N
Signal-to-noise ratio
-
0.04
0.068
%
89
95
-
dB
Min
Typ
Max
Unit
3.3V ELECTRICAL CHARACTERISTICS
(Ta=25℃, VDD=3.3V, f=1kHz, Cap=1uF; unless otherwise specified)
Symbol
Parameter
Conditions
DC Characteristics
VCAP
Voltage at CAP
1.6
1.65
1.7
V
VDC
Output DC level
1.6
1.65
1.7
V
VFS
Full scale output voltage
VFS=0.5VDD
1.5
1.65
1.8
Vpp
IQ
Quiescent current
At code 0000H
-
2.3
-
mA
IFS
Maximum operation current
VFS=0.5VDD
-
2.4
-
mA
PSRR
Power supply rejection ratio
CS
Channel separation
Cap=1uF, f=100Hz
45
50
-
dB
Cap=10uF, f=100Hz
63
68
-
dB
85
90
-
dB
-
-66
-62
dB
-
0.05
0.08
%
86
92
-
dB
AC Characteristics
THD+N
Total harmonic distortion plus
noise
S/N
Signal-to-noise ratio
REV 2
4/13
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MS6324/26
MOSA
16-Bits Stereo Audio DAC
2.5V ELECTRICAL CHARACTERISTICS
(Ta=25℃, VDD=2.5V, f=1kHz, Cap=1uF; unless otherwise specified)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
DC Characteristics
VCAP
Voltage at CAP
1.2
1.25
1.3
V
VDC
Output DC level
1.2
1.25
1.3
V
VFS
Full scale output voltage
VFS=0.5VDD
1.15
1.25
1.35
Vpp
IQ
Quiescent current
At code 0000H
-
2.0
-
mA
IFS
Maximum operation current
VFS=0.5VDD
-
2.05
-
mA
PSRR
Power supply rejection ratio
Cap=1uF, f=100Hz
45
49
-
dB
Cap=10uF, f=100Hz
62
67
-
dB
CS
Channel separation
82
87
-
dB
-
-66
-62
dB
-
0.05
0.08
%
83
89
-
dB
AC Characteristics
THD+N
Total harmonic distortion plus
noise
S/N
Signal-to-noise ratio
TYPICAL PERFORMANCE CHARACTERISTICS
VDD=2.5V
REV 2
THD+N (%)
THD+N (%)
THD+N (%)
(Ta=25℃, f=1kHz, Cap=1uF, sampling rate=4fs; unless otherwise specified, )
VDD=3.3V
VDD=5V
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
THD+N vs. frequency
THD+N vs. frequency
THD+N vs. frequency
5/13
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MS6324/26
MOSA
16-Bits Stereo Audio DAC
PSRR (dB)
THD+N (%)
THD+N (%)
CAP=10uF
CAP=1uF
VDD=2.5V
VRR=-20dBV
VDD=6V
FREQUENCY (Hz)
SUPPLY VOLTAGE (V)
FREQUENCY (Hz)
THD+N vs. frequency
THD+N vs. supply voltage
PSRR vs. frequency
CAP=10uF
CAP=10uF
VDD=3.3V
VRR=-20dBV
CAP=1uF
VDD=5V
VRR=-20dBV
PSRR (dB)
CAP=1uF
PSRR (dB)
PSRR (dB)
CAP=10uF
CAP=1uF
VDD=6V
VRR=-20dBV
FREQUENCY (Hz)
FREQUENCY (Hz)
PSRR vs. frequency
PSRR vs. frequency
PSRR vs. frequency
QUIESCENT CURRENT (mA)
CHANNEL SEPARATION (dB)
FREQUENCY (Hz)
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
Quiescent current vs. supply voltage
Channel separation vs. supply voltage
REV 2
6/13
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MS6324/26
MOSA
16-Bits Stereo Audio DAC
TIMING AND DATA FORMAT
The MS6324/26 accepts input serial data formats of 16-bit word length. Left and right data words are time
multiplexed. The MSB 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). 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
DATA
tSD
LSB
Fig.2
Data format (BCK, WS, DATA)
Symbol
Parameter
tHD
MSB
Timing and input signals.
Min
Typ.
Max
Unit
Input LOW level
-
-
0.7
V
VIH
Input HIGH level
1.8
-
-
V
l I IL l
l I IH l
f BCK
Input Leakage Current LOW
-
-
10
Input Leakage Current HIGH
-
-
10
µA
µA
Input Clock Frequency
-
-
18.4
MHz
BR
Bit Rate Data Input
-
-
18.4
Mbits/s
fWS
Word Select Input
-
-
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
VIL
REV 2
Conditions
7/13
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MS6324/26
MOSA
16-Bits Stereo Audio DAC
I2S format
WS
LEFT
RIGHT
BCK
1 BCK
DATA
15
1 BCK
14
13
2
MSB
1
0
15
14
LSB
MSB
13
2
1
0
LSB
Fig.4 I2S format(MS6324)
Right justified format
LEFT
WS
RIGHT
BCK
DATA 2
1
0
15
14
13
2
1
MSB
0
15
LSB
MSB
14
13
2
1
0
LSB
Fig.3 Right justified format(MS6326)
APPLICATION INFORMATION
MP3 digital to analog converting solution
MS6324/26
BCK
VoR
WS
CAP
DATA
VoL
39k
68pF
1uF
1uF
GND
15k
22k
22k
100uF
1.2nF
V DD
1nF
Headphone
(32Ω)
MS6308
10Ω
100k
Supply
10uF
VREF
0.1uF
100k
f-3dB
DCgain
VDACOUT P-P
VOUT P-P
=
=
=
=
17.5KHz
1.05
1.65V
1.75V
1uF
For VDD = 3.3V
Fig.4 A third order lowpass filter ( Smoothing filter ) for DAC output.
REV 2
8/13
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MS6324/26
MOSA
16-Bits Stereo Audio DAC
DAC
Headphone Driver
470pF
20k
MS6324/26
1
BCK
VoR
8
1.65VPP
0.1uF
20k
2
1
2
WS
CAP
7
3
DATA
VoL
6
4
GND
VDD
5
50k
1uF
50k
VREF
PHONE JACK
5
Supply
10Ω
3.3V
1.65VPP
MS6308
10uF
0.1uF
47uF
3
20k
7
47uF
Headphone
(32Ω)
6
22k
AVDD
47uF
450pF
0.1uF
Fig.5 A first order lowpass filter for DAC output.
REV 2
9/13
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MS6324/26
MOSA
16-Bits Stereo Audio DAC
EXTERNAL DIMENSIONS
8
5
Symbol
H
E
1
A
A1
B
C
D
H
E
e
L
4
D
Dimension in mm
Min
Max
1.35
1.75
0.10
0.25
0.33
0.51
0.19
0.25
4.80
5.00
5.80
6.20
3.80
4.00
1.27 BSC
0.40
1.27
Dimension in inch
Min
Max
0.0532 0.0688
0.0040 0.0098
0.013
0.020
0.0075 0.0098
0.1890 0.1968
0.2284 0.2440
0.1497 0.1574
0.050 BSC
0.016
0.050
L
A
A1
e
B
C
SOP8
Symbol
H
A
A1
A2
B
C
D
H
E
e
L
E
Dimension in mm Dimension in inch
Min
Max
Min
Max
0.81
1.12
0.032
0.048
0.05
0.15
0.002
0.006
0.76
0.86
0.030
0.038
0.28
0.38
0.011
0.015
0.13
0.23
0.005
0.009
2.90
3.10
0.114
0.122
4.70
5.10
0.185
0.201
2.90
3.10
0.114
0.122
0.65
0.026
0.40
0.66
0.016
0.026
D
A
A2
A1
e
L
B
C
MSOP8
D
D2
D/2
L
Symbol
E/2
E2
E
K
e
b
A
A1
A3
D
D2
E
E2
e
b
L
K
JEDEC
Min
0.80
0
1.60
1.35
Dimension in mm
Nom
Max
0.90
1.00
0.02
0.05
0.20 REF.
3.00 BASIC
2.50
3.00 BASIC
1.75
0.65 BASIC
0.30
0.35
0.40
0.50
0.25
0.30
0.20
MO-229(Variation V3030C-2)
A
A3
A1
DFN8
REV 2
10/13
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MS6324/26
MOSA
16-Bits 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
SOP8
2.0
0.30
0.05
0.05
1.5+0.1/-0.0
4.0
1.75
0.3R MAX
5.5
0.05
12.0 0.3
3.3
5.2
8.0
1.5 MIN
0.3 Typical
4.2
3.4
1.6 1.2
MSOP8
REV 2
11/13
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MS6324/26
MOSA
16-Bits Stereo Audio DAC
4.0 0.1
1.5+0.1/-0.0
2.0 0.05
0.30 0.05
1.75 0.01
5.5
0.05
12.0 0.3
3.4
0.1
8.0 0.1
1.2
1.6+0.1/-0.0
3.4 0.1
DFN8(3x3mm)
REV 2
12/13
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MS6324/26
MOSA
16-Bits Stereo Audio DAC
Demo board
4
2
3
1
Function description
Label 1: Supply Input
Supply voltage range is 2.5V to 6.5V.
Label 2: Headphone Jack
Used 3.5mm diameter of headphone with 32ohm.
Label 3: Digital Signal Input
Connected to digital audio format.
Label 4: MS6324/26 output
MS6324/26 output test ports.
Circuit
R1
51K
AVDD
1
2
+ C6
10u
+
+ C7
0.1u
AVDD
+ C2
10u
R2
51K
J2
C3
R3
J1
U1
VoR
Cap
VoL
VDD
MS6324/26
0.1u
R4
20K
0.1u
R5
20K
C4
C8
+ C1 J4
1u
OUTA VDD
-INA OUTB
+INA -INB
Vss
+INB
J3
C5
47u
C9
47u
OUTPUT
MS6308
R6
+
1
2
C10
Vo
REV 2
1
2
HPo
8
7
6
5
+
BCK
WS
DATA
GND
1
2
3
4
+
1K
1K
1K
+
INPUT
R7
R8
R9
J5
U3
8
7
6
5
+
1
2
3
4
1
2
3
4
470p
20K
13/13
20K
470p
R10 R11
1K 1K
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