MOSA MS6335

MOSA
MS6334/6335
16bits Stereo Audio DAC integrated HP Driver with Volume Control
16bits Stereo Audio DAC Integrated Headphone
Driver with Volume Control
FEATURES
‧Operation range: 2.7V~6.5V
‧Volume control range : 6dB to –39dB, 1.5dB/step
‧Low power consumption, 17mW at VDD=3.3V
(Audio code = 0000H)
‧Mute function
‧Flexibility power management
‧No pop-noise
‧No zero crossing distortion
‧Audio format : Right justified, I2S
‧Serial control interface : I2C, SPI
‧Output voltage adjusted by the external resisters
‧Excellent Power Supply Rejection Ratio(PSRR)
‧Component less
‧Cost effective
‧Housed in SSOP20(MS6334), SSOP16, QFN16 package
APPLICATIONS
Multimedia system, MP3, PDA, Portable Digital Audio.
DESCRIPTION
The MS6334 is a 16-bits voltage-output Digital-to-Analog Converter (DAC) integrated class AB stereo headphone
driver with volume control. It is fabricated in a 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.
The MS6334 has good feature for portable equipment, these features include the low voltage operation, low power
consumption, flexible power management, component less and small package SSOP20, make the MS6334 ideally
suited for use in portable digital audio equipments.
The MS6335 only has I2C interface, the smaller package SSOP16, QFN16 , and other functions are the same as the
MS6334.
BLOCK DIAGRAM
SDA SCL AO/CS MODE
Line-Lin
Line-Lout
HP-VDD
HP-VSS
Control Interface
+
BCK
WS
OPAmp
DAC
DATA
+
Volume
Control
Mute
-
AVDD AVSS DVDD DVSS CAP
REV 5
Line-Rin
1/20
HP
HP-Lout
HP
HP-Rout
Line-Rout
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MOSA
MS6334/6335
16bits Stereo Audio DAC integrated HP Driver with Volume Control
PIN CONFIGURATION
MS6334
Symbol
Pin
Description
HP-VDD
1
Headphone supply voltage
HP-Rout
2
Right channel headphone output
Line-Rout
3
Right channel line output
Line-Rin
4
Right channel line input
CAP
5
Capacitor connected
AVSS
6
Analog ground
DVSS
7
Digital ground
MODE
8
Control interface selection
Low : I2C, High : SPI
BCK
9
Audio bit clock input
WS
10
Audio word select input
DATA
11
Audio data input
AVSS 6
15 DVDD
SCL
12
I2C clock input
SPI clock input
DVSS 7
14 AO/CS
SDA
13
I2C data input
SPI data input
HP-VDD 1
20 HP-VSS
HP-Rout 2
19 HP-Lout
Line-Rout 3
18 Line-Lout
Line-Rin 4
17 Line-Lin
16 AVDD
CAP 5
MS6334
MODE 8
13 SDA
BCK 9
12 SCL
2
AO/CS
14
I C address option
SPI chip select
DVDD
15
Digital supply voltage
AVDD
16
Analog supply voltage
Line-Lin
17
Left channel line input
Line-Lout
18
Left channel line output
HP-Lout
19
Left channel headphone output
HP-VSS
20
Headphone ground
WS 10
11 DATA
SSOP20, I2C / SPI interface
Note: 1. MODE = low, the interface is I2C and pin14 is address option (AO).
AO = low, the address code is 8CH (10001100B).
AO = high, the address code is 88H (10001000B).
2. MODE = high, the interface is SPI and pin14 is chip selection (CS).
REV 5
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MOSA
MS6335
Symbol
Pin
MS6334/6335
16bits Stereo Audio DAC integrated HP Driver with Volume Control
Description
HP-VDD
1
Headphone supply voltage
HP-Rout
2
Right channel headphone output
Line-Rout
3
Right channel line output
Line-Rin
4
Right channel line input
CAP
5
Capacitor connected
VSS
6
Ground
BCK
7
Audio bit clock input
WS
8
Audio word select input
DATA
9
Audio data input
SCL
10
I2C clock input
SDA
11
VDD
HP-VDD 1
16 HP-VSS
HP-Rout 2
15 HP-Lout
Line-Rout 3
14 Line-Lout
Line-Rin 4
13 Line-Lin
MS6335
CAP 5
12 VDD
VSS 6
11 SDA
I2C data input
BCK 7
10 SCL
12
Supply voltage
WS 8
Line-Lin
13
Left channel line input
Line-Lout
14
Left channel line output
HP-Lout
15
Left channel headphone output
HP-VSS
16
Headphone ground
9 DATA
SSOP16, I2C interface
2
Right channel line input
CAP
3
Capacitor connected
VSS
4
Ground
BCK
5
Audio bit clock input
WS
6
Audio word select input
DATA
7
Audio data input
SCL
8
I2C clock input
SDA
9
I2C data input
VDD
10
Supply voltage
Line-Lin
11
Left channel line input
Line-Lout
12
Left channel line output
HP-Lout
13
Left channel headphone output
HP-VSS
14
Headphone ground
HP-VDD
15
Headphone supply voltage
HP-Rout
16
Right channel headphone output
13 HP-Lout
Line-Rin
14 HP VSS
Line-Rout 1
12 Line-Lout
Line-Rin 2
11 Line-Lin
10 VDD
CAP 3
9 SDA
VSS 4
SCL 8
Right channel line output
DATA 7
1
15 HP VDD
Description
WS 6
Line-Rout
Pin
BCK 5
MS6335
Symbol
16 HP-Rout
Note: The control interface is I2C only. The address code is 8CH (10001100B).
QFN16, I2C interface
Note: The control interface is I2C only. The address code is 88H (10001000B).
REV 5
3/20
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MOSA
MS6334/6335
16bits Stereo Audio DAC integrated HP Driver with Volume Control
ORDERING INFORMATION
Package
Part number
Packaging Marking
Transport Media
20-Pin SSOP (lead free)
MS6334GTR
MS6334G
2.5k Units Tape and Reel
20-Pin SSOP (lead free)
MS6334GU
MS6334G
50 Units Tube
16-Pin SSOP (lead free)
MS6335GTR
MS6335G
2.5k Units Tape and Reel
16-Pin SSOP (lead free)
MS6335GU
MS6335G
100 Units Tube
16-Pin QFN (lead free)
MS6335QTR
6335
5k Units Tape and Reel
MS6335Q
6335
490 Units Tray
16-Pin QFN (lead free)
RoHS Compliance
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
VDD
Positive Supply Voltage
VESD
Electrostatic Handling
TSTG
Storage Temperature Range
TA
Operating Ambient Temperature Range
TJ
TS
RTHJA
Rating
Unit
6.5
V
-3000 to 3000
-65 to 150
V
℃
-40 to 85
℃
Maximum Junction Temperature
150
℃
Soldering Temperature, 10 seconds
Thermal Resistance from Junction to Ambient in Free Air
SSOP20
SSOP16
QFN16
260
℃
210
210
120
℃/W
OPERATING RATINGS
Symbol
VDD
REV 5
Parameter
Supply Voltage
4/20
Min
Typ
Max
Unit
2.7
-
6.5
V
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MOSA
MS6334/6335
16bits Stereo Audio DAC integrated HP Driver with Volume Control
3.3V ELECTRICAL CHARACTERISTICS
(Ta=25℃, VDD=3.3V, VSS=0V, f=1kHz, RL=32; unless otherwise specified)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
DC Characteristics
VCAP
Voltage at CAP
1.60
1.65
1.70
V
VDC
Output DC level
1.60
1.65
1.70
V
VFS
Full scale output voltage
VFS=0.02* RF *VDD
VFS-10%
VFS
VFS+10%
V
IQ
Quiescent current
Audio code 0000H
-
5.4
-
mA
IPD
Power down current
-
11
-
uA
PSRR
Power supply rejection ratio
CAP=2.2uF (100Hz)
58
63
CAP=10uF (100Hz)
67
72
CS
Channel separation
76
82
-
dB
ATT
Mute attenuation
100
110
-
dB
AGA
Gain/Attenuation
Max gain
-
6
-
dB
Max attenuation
-
-39
-
dB
ASTEP
Gain/Attenuation step
-
1.5
-
dB
EGA
Gain/Attenuation step error
-
0.3
-
dB
dB
dB
AC Characteristics
Res
Resolution
-
-
16
bits
THD+N
Total harmonic distortion plus
noise
-
-65
-60
dB
S/N
Signal-to-noise ratio
Po
Maximum output power
Vo
Maximum output voltage swing
-
0.056
0.1
%
86
92
-
dB
(THD+N)/S < 0.1
-
20
-
mW
(THD+N)/S < 0.1
-
1.6
-
Vpp
-
-
0.7VDD
V
0.3VDD
-
-
V
Bus Characteristics
VIH
Bus high input level
VIL
Bus low input level
Note : RF : Feedback resistor
REV 5
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MOSA
MS6334/6335
16bits Stereo Audio DAC integrated HP Driver with Volume Control
TYPICAL PERFORMANCE CHARACTERISTICS
Code=65H
THD+N (%)
Code=60H
QUIESCENT CURRENT (mA)
POWER DOWN CURRENT (uA)
(Ta=25℃, RL=32, RF=22k, sampling rate=4fs; unless otherwise specified)
f=1kHz
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
Power down current vs. supply voltage
Quiescent current vs. supply voltage
THD+N vs. supply voltage
CAP=2.2uF
VDD=5V
VRR=-20dBV
CAP=10uF
CAP=2.2uF
PSRR (dB)
CAP=10uF
PSRR (dB)
VDD=3.3V
VRR=-20dBV
CAP=2.2uF
VDD=2.7V
VRR=-20dBV
FREQUENCY (Hz)
FREQUENCY (Hz)
PSRR vs. frequency
PSRR vs. frequency
MUTE ATTENUATION (dB)
CHANNEL SEPARATION (dB)
FREQUENCY (Hz)
PSRR vs. frequency
f=1kHz
VDD=2.7V
THD+N (%)
PSRR (dB)
CAP=10uF
VDD=3.3V
f=1kHz
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
FREQUENCY (Hz)
Mute attenuation vs. supply voltage
Channel separation vs. supply voltage
THD+N vs. frequency
REV 5
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MOSA
MS6334/6335
16bits Stereo Audio DAC integrated HP Driver with Volume Control
AUDIO TIMING AND FORMAT
The MS6334 accepts input serial data formats of 16-bit word length. Left and right data words are time multiplexed.
The MSB must always be first.
LEFT
WS
RIGHT
tr
tHB
tf
tLB
tHW
tSW
BCK
tcr
tSD
tHD
Min
0.7VDD
-
Typ
-
Max
0.3VDD
18.4
18.4
384
12
Unit
V
V
MHz
Mbits/s
kHz
ns
-
-
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
LSB
DATA
Fig.1
MSB
Timing of input signals
Audio data format (BCK, WS, DATA)
Symbol
Parameter
VIL
Input LOW level
VIH
Input HIGH level
Input
Clock Frequency
f BCK
BR
Bit Rate Data Input
Word Select Input
fWS
Rise Time
tr
tf
t Cr
t HB
t LB
t SD
t HD
t HW
t SW
Conditions
Fall Time
LEFT
WS
RIGHT
BCK
DATA 2
1
0
15
14
13
2
1
MSB
Fig.2
REV 5
0
15
LSB
MSB
14
13
2
1
0
LSB
Right justified format (Normal format)
7/20
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MOSA
MS6334/6335
16bits Stereo Audio DAC integrated HP Driver with Volume Control
WS
LEFT
RIGHT
BCK
1 BCK
DATA
15
14
1 BCK
13
2
MSB
1
0
15
LSB
MSB
Fig.3
14
13
2
1
0
LSB
I2S format
I2C BUS INTERFACE
I2C interface protocol
The format consists of the following
‧A START condition
‧A chip address byte including the chip address. (7bits)
‧The 8th bit of the byte must be “0”.(write=0, read=1)
‧The chip must always acknowledge the end of each transmitted byte.
‧A data sequence (N-bytes + Acknowledge)
‧A STOP condition
SDA
SCL
1-7
8
9
ADDRESS
R/W
ACK
1-7
8
9
1-7
8
9
S
P
START
CONDITION
DATA
Fig.4
ACK
DATA
ACK
STOP
CONDITION
I2C format
I2C chip address
88H
1
0
8CH
0
0
1
7 bits address
0
0
0
W
For MS6334, MODE=Low, AO/CS=High,
For MS6335 QFN16 package only
REV 5
1
0
0
0
1
7 bits address
1
0
0
W
For MS6334, MODE=Low, AO/CS=Low
For MS6335 SSOP16 package only
8/20
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MOSA
MS6334/6335
16bits Stereo Audio DAC integrated HP Driver with Volume Control
I2C data bytes description
Volume control
MSB
LSB
0
0
0
0
0
1
0
1
0
Function
2-channel, 1.5dB/step
b4
b3
b2
b1
b0
Left channel, 1.5dB/step
Right channel, 1.5dB/step
Gain / Attenuation bits
b4
b3
b2
b1
b0
Value (dB)
Value (dB)
0
0
0
0
0
Mute
1
0
0
0
0
-16.5
0
0
0
0
1
-39
1
0
0
0
1
-15
0
0
0
1
0
-37.5
1
0
0
1
0
-13.5
0
0
0
1
1
-36
1
0
0
1
1
-12
0
0
1
0
0
-34.5
1
0
1
0
0
-10.5
0
0
1
0
1
-33
1
0
1
0
1
-9
0
0
1
1
0
-31.5
1
0
1
1
0
-7.5
0
0
1
1
1
-30
1
0
1
1
1
-6
0
1
0
0
0
-28.5
1
1
0
0
0
-4.5
0
1
0
0
1
-27
1
1
0
0
1
-3
0
1
0
1
0
-25.5
1
1
0
1
0
-1.5
0
1
0
1
1
-24
1
1
0
1
1
0
0
1
1
0
0
-22.5
1
1
1
0
0
+1.5
0
1
1
0
1
-21
1
1
1
0
1
+3
0
1
1
1
0
-19.5
1
1
1
1
0
+4.5
0
1
1
Initial state: Mute
1
1
-18
1
1
1
1
1
+6
b4
b3
Power down mode
MSB
0
LSB
1
1
b2
b1
b0
Function
Power down mode selection
Power down bits
b4=1, Pull down CAP pin to ground (CAPGD)
b4=0, Set the voltage of CAP to middle of supply voltage (CAPGD)
b3=1, Enable OPAmp power down (OPAPD)
b3=0, Disable OPAmp power down (OPAPD)
b2=1, Enable DAC power down (DACPD)
b2=0, Disable DAC power down (DACPD)
b1=1, Enable headphone power down (HPPD)
b1=0, Disable headphone power down (HPPD)
b0=1, Enable DAC mute (DACM)
b0=0, Disable DAC mute (DACM)
Initial state: b0=b1=b2=b3=b4=1
REV 5
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MOSA
MS6334/6335
16bits Stereo Audio DAC integrated HP Driver with Volume Control
Audio format and power off
MSB
1
0
0
0
0
0
b1
LSB
Function
b0
Audio format selection and preparation for power off
Audio format and power off bits
b1=1, Enable preparation for power off
b1=0, Disable preparation for power off
b0=1, I2S format
b0=0, Right justified format (normal format)
Initial state: b0=b1=0. Power off : VDD down to 0V
I2C example
The audio format is selected I2S format. Audio format code = 81H.
The initial state is right justified format.
MSB
Start
1
Data byte
LSB
0
0
0
1
1
0
0
ACK
1
0
0
0
0
0
0
1
ACK
Stop
I2S format
MS6335 address
DAC active. Code = 7BH.
The initial state is enabled all power down mode when power on.
Start
Chip Address
ACK
0
1
1
1
1
0
1
1
ACK
Stop
DACPD = 0
HP active, OPAmp active, CAP to 1/2 VDD, DAC keep active. Code = 61H.
Set the voltage of CAP to middle of supply voltage, the charge time is approximately 1 second.
Start
Chip Address
ACK
0
1
1
0
0
0
0
1
ACK
Stop
0
0
ACK
Stop
1
ACK
Stop
CAPGD = 0
HPPD = 0
OPAmp = 0
DACPD = 0
DAC mute off. Code = 60H.
The chip entered active mode.
Start
Chip Address
ACK
0
1
1
0
0
0
DACM = 0
Set gain of 2 channel at 0dB. Volume control code = 1BH.
Start
Chip Address
ACK
0
0
0
1
1
0
1
2-ch, 0dB
Set attenuation of left channel at –22.5dB. Volume control code = 2CH.
Start
Chip Address
ACK
0
0
1
0
1
1
0
0
ACK
Stop
L-ch, -22.5dB
REV 5
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MOSA
MS6334/6335
16bits Stereo Audio DAC integrated HP Driver with Volume Control
Set attenuation of right channel at –22.5dB. Volume control code = 4CH.
Start
Chip Address
ACK
0
1
0
0
1
1
0
0
ACK
Stop
1
x
ACK
Stop
R-ch, -22.5dB
Preparation for power off. Code = 82H or 83H.
Start
Chip Address
ACK
1
0
0
0
0
0
Power Off Preparation = 1
FM application. OPAmp active, HP active. DAC inactive, DAC mute off. Code = 65H.
The chip enters line-in mode.
Start
Chip Address
ACK
0
1
1
0
0
1
0
1
Stop
ACK
HPPD = 0
OPAmp = 0
Power down mode (shut down mode). Code = 6FH
The chip enters power down mode. The shut down current is approximately 11uA.
Start
Chip Address
ACK
0
1
1
0
1
1
1
Stop
ACK
1
DACM = 1
DACPD = 1
HPPD =1
OPAmp =1
SPI BUS INTERFACE
In SPI mode, SCL is serial clock, SDA is serial data and AO/CS latches the data word into the MS6334. A control word
consist of 16bit, starting with the MSB. The data bits are latched on the rising edge of SCL. A rising edge of AO/CS
latches the data into the MS6334 after sixteenth rising clock edge.
CS/AO
SCL
SDA
15
14
13
12
11
10
9
8
7
6
5
4
3
2
MSB
1
0
LSB
Fig.5
SPI format
SPI data word description
LSB
MSB
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
2
0
REV 5
0
0
0
0
0
0
Reference to I C data bytes description
The initial state is the same as I2C
0
11/20
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MOSA
MS6334/6335
16bits Stereo Audio DAC integrated HP Driver with Volume Control
OPERATION PROCEDURE
The sequence of operation: power on→ active → power down → active → power off. The basic flowcharts are as
follows:
Power Turn On
All the Digital Interface Signals
Pull Low
I2C pull low
Audio inputs pull low
(BCK, WS, DATA)
VDD = GND
Power On
VDD = Supply voltage
Default Codes Inside The Chip
Volume control :00H
Power down : 7FH
Audio format : 80H
Default Status
The chip is in the power down
mode, all devices are not active
Volume Mute On
Active
Power Off
Audio Format Selection
Right justified: 80H (default)
I2S: 81H
Active mode
All Devices are active
Power up
Code : 6DH
Volume Control
volume down to mute
both 2 channels mute on
Wait 1sec
Power Down
(Shut Down)
Volume Control
volume down to mute
both 2 channels mute on
Power Down
code : 6FH
All devices are not active
except CAPPD keep active
Code : 61H
All Devices are active
Power Off Preparation
code : 82H or 83H
wait 0.2 sec
Keep All the Digital Interface
Signals unchanged
DAC Mute Off
Code : 60H
Power Down
code : 6FH
All devices are not active except
CAPPD keep active
Volume Control
Default volume = mute
Volume up/down step by step
All the Digital Interface Signals
Pull Low
I2C pull low
Audio inputs pull low
(BCK, WS, DATA)
Power Off
Disconnect VDD
VDD will be down to 0V
Fig.6
REV 5
Operational procedure
12/20
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MOSA
MS6334/6335
16bits Stereo Audio DAC integrated HP Driver with Volume Control
APPLICATION INFORMATION
A MP3 with FM application
The analog and digital power can be supplied as single voltage.
MS6334
15
0.1uF
7
DVDD
DVSS
HP-VDD
HP-VSS
AVSS
1
20
Supply
2.7~5.5V
0.1uF
100uF
6
0.1uF
AVDD
MCU
Interface
CAP
8
MODE
14
AO/CS
12
SCL
13
SDA
Line-Lin
17
Line-Lout
18
Line-Rout
7
BCK
8
WS
9
DATA
300K
5
2.2uF
Line-Rin
Audio
Decoder
16
RFM
FM-L
RFM
FM-R
4
3
HP-Lout
19
HP-Rout
20
FM
Module
CF
RF
CF
RF
47uF
32Ω
47uF
32Ω
Headphone
MS6335
Supply
2.7~5.5V
HP-VDD
0.1uF
HP-VSS
100uF
VSS
0.1uF
VDD
300K
CAP
SCL
2.2uF
MCU
Interface
SDA
RFM
Line-Lin
FM-L
FM
Module
CF
RF
Line-Lout
RFM
Line-Rin
FM-R
CF
RF
Line-Rout
BCK
Audio
Decoder
WS
DATA
47uF
32Ω
47uF
32Ω
HP-Lout
Headphone
HP-Rout
Note :
Vo=0.02269*RF*VDD Vpp at 0dB gain
RF//CF to decide –3dB point
For VDD=3V, RL=32, RF =24k, CF =390pF, Vo=1.63Vpp
RL=16, RF =22k, CF =470pF, Vo=1.50Vpp
FM mode, VLine DC Gain = RF/ RFM
Fig.7 MP3 with FM application circuit.
REV 5
13/20
www.mosanalog.com
MOSA
MS6334/6335
16bits Stereo Audio DAC integrated HP Driver with Volume Control
EXTERNAL DIMENSIONS
SSOP20
D
Detail A
Symbol
E1
A
A1
A2
b
c
e
D
E
E1
L
h
L1
ZD
R1
R
θ
θ1
θ2
E
H x 45
c
ZD
A2
A
θ2
e
A1
b
θ1
Dimension in mm Dimension in inch
Min
Max
Min
Max
1.35
1.75
0.053
0.069
0.10
0.25
0.004
0.010
1.50
0.059
0.20
0.30
0.008
0.012
0.18
0.25
0.007
0.010
0.635 BASIC
0.025 BASIC
8.56
8.74
0.337
0.344
5.79
6.20
0.228
0.244
3.81
3.99
0.150
0.157
0.41
1.27
0.016
0.050
0.25
0.50
0.010
0.020
0.254 BASIC
0.010 BASIC
1.4732 REF
0.058 REF
0.20
0.33
0.008
0.013
0.20
0.008
o
o
o
0
8
0
8o
0o
0o
5o
15o
5o
15o
R1
L1
R
θ
L
Detail A
SSOP16
D
Detail A
Symbol
A
A1
A2
b
c
e
D
E
E1
L
h
L1
ZD
R1
R
θ
θ1
θ2
E1 E
H x 45
c
ZD
A2 A
Dimension in mm Dimension in inch
Min
Max
Min
Max
1.35
1.75
0.053
0.069
0.10
0.25
0.004
0.010
1.50
0.059
0.20
0.30
0.008
0.012
0.18
0.25
0.007
0.010
0.635 BASIC
0.025 BASIC
4.80
5.00
0.189
0.197
5.79
6.20
0.228
0.244
3.81
3.99
0.150
0.157
0.41
1.27
0.016
0.050
0.25
0.50
0.010
0.020
0.254 BASIC
0.010 BASIC
0.229 REF
0.009 REF
0.20
0.33
0.008
0.013
0.20
0.008
o
o
o
0
8
0
8o
0o
0o
5o
15o
5o
15o
θ2
e
b
θ1
A1
R1
L1
R
θ
Detail A
REV 5
14/20
L
www.mosanalog.com
MOSA
MS6334/6335
16bits Stereo Audio DAC integrated HP Driver with Volume Control
QFN16 (3x3mm)
D
L
Symbol
D1
E1
e
E
A
A1
A3
b
D
D1
E
E1
e
L
Min
0.70
0
0.18
2.9
1.40
2.9
1.40
0.30
Dimension in mm
Nom
0.75
0.02
0.203REF
0.23
3.00
1.50
3.00
1.50
0.50BSC
0.40
Max
0.80
0.05
0.30
3.10
1.60
3.10
1.60
0.50
b
A3
A
A1
REV 5
15/20
www.mosanalog.com
MOSA
MS6334/6335
16bits Stereo Audio DAC integrated HP Driver with Volume Control
DEMO BOARD
2.7V ~ 6.5V
-+
S5
a
c
2.7V ~ 6.5V
+
-
S1
Audio
Input
LED1
S4
LED2
S2
LED3
S3
S4 (Power): POWER On/Off
Power On: If this key is pressed until the LED1 power on(about 3 sec),then system is Power On.
Power Off: If this key is pressed until the LED1 power off(about 3 sec),then system is Power Off.
S2 (UP) & S3 (Down): Volume Control
The volume key is used to adjust the volume of playing, and the segment is divided to 31 levels(-39dB～+6dB).
The prime value is level 5(-33dB).
Express full volume when LED3 is bright continuously.
Express mute on when LED2 is bright continuously.
S1: Reset
All I/O pins are reset to high.
S5: I2S/Normal
This PIN is used to switch the mode of audio format.
I2S : a & c open.
Normal : a & c short.
REV 5
16/20
www.mosanalog.com
MOSA
MS6334/6335
16bits Stereo Audio DAC integrated HP Driver with Volume Control
Circuit :
AVDD
+
100uF 0.1u
300k
390p
390p
+
47uF
1
2
3
4
5
6
7
8
24k
phone jack
32
2.2u
HPVdd
HP-Rout
Line-Rout
Line-Rin
CAP
Vss
BCK
WS
HPVss
HP-Lout
Line-Lout
Line-Lin
Vdd
SDA
SCL
DATA
16
15
14
13
12
11
10
9
+
47uF
24k
32 phone jack
SDA
SCL
24k
+
24k
+
MS6335 (SSOP16)
L-IN
0.1u
1uF
BCK
WS
DATA
100k
R-IN
1uF
100k
100
DVCC
1
2
DVCC
2
3
6
7
8
9
11
20pF
12M
20pF
5
4
1
20
+
10k
REV 5
10uF
P3.0/RXD
P3.1/TXD
P3.2/INTO
P3.3/INT1
P3.4/T0
P3.5/T1
P3.7
P1.0/AIN0
P1.1/AIN1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
XTAL1
XTAL2
12
13
14
15
16
17
18
19
SDA
SCL
1k
RST/VPP
VCC
AT89C2051
17/20
www.mosanalog.com
MOSA
MS6334/6335
16bits Stereo Audio DAC integrated HP Driver with Volume Control
DEMO BOARD（IR）
1
6
2
a
c
1
3
5
4
Function description
Label 1: Supply Input
Supply voltage range is 2.4V to 6.5V.
Label 2: This PIN is used to switch the mode of audio format.
I2S : a & c open.
Normal : a & c short.
Label 3: Reset
All I/O pins are reset to default values.
Label 4: LED
The LED indicates IR received status and power status.
Label 5: Digital Signal Input
Connected to digital audio formats as I2S, Right Justified and Left Justified.
Label 6: Headphone Jack
Used 3.5mm diameter of headphone with 32ohm
REV 5
18/20
www.mosanalog.com
MOSA
MS6334/6335
16bits Stereo Audio DAC integrated HP Driver with Volume Control
IR Controller
Power ON/OFF : The power key.
Press the key once to set power-on or power-off for MS6864.
The default values are ATTENUATION –33dB.
vol+ : The volume-up switch for stereo channel
The volume increase by +1dB as the switch is pressed once, the maximum value is up to +6dB.
The default value is -33dB on initial status.
L-channel and R-channel are active synchronic.
vol- : The volume-down switch for stereo channel
The volume decrease by -1dB as the switch is pressed once, the minimum value is up to -39dB.
L-channel and R-channel are active synchronic.
Vol_L+ : The volume-up switch for left channel
The volume increase by +1dB as the switch is pressed once, the maximum value is up to +6dB.
Vol_L - : The volume-down switch for left channel
The volume decrease by -1dB as the switch is pressed once, the minimum value is up to -39dB.
Vol_R+ : The volume-up switch for right channel
The volume increase by +1dB as the switch is pressed once, the maximum value is up to +6dB.
Vol_R- : The volume-down switch for right channel
The volume decrease by -1dB as the switch is pressed once, the minimum value is up to -39dB.
Mute : Press the switch once to enter mute-on or mute-off.
The default status is mute-off on initial status.
REV 5
19/20
www.mosanalog.com
MOSA
MS6334/6335
16bits Stereo Audio DAC integrated HP Driver with Volume Control
Circuit
R15
R11
1k
R12
1k
R13
1k
220
R16
10K
J5
1
2
1
47u
2
IR_IN
DVCC
S1
D1
C13
10u
J6
RST
R10
10k
IR_IN
S5
1
2
3
4
5
6
7
8
9
10
RST
P3.0
P3.1
XTAL2
XTAL1
P3.2
P3.3
P3.4
P3.5
GND
Power
20
19
18
17
16 SCL
15 SDA
14
13
12
11
Vcc
P1.7
P1.6
P1.5
P1.4
P1.3
P1.2
P1.1
P1.0
P3.7
D2
D3
Q1
C16 +
3
Vc
GND
IR
IR
+ C17
470P
VOL- VOL+
DGND
AT89C2051
I2S/Normal
J4
PHONEJACK
C14
20
Y1
12M
C15
20
J3
1
2
C7
AVDD
R14
300k
C3
C1
J1
FM_R
FM_L
1
2
3
Line In
R2
100k
1u
R3
100k
104
104
R4
24k
C4
2.2u
1
2
3
4
5
6
7
8
HPVDD
HPVss
HP-Rout
HP-Lout
Line-Rout Line-Lout
Line-Rin
Line-Lin
CAP
VDD
Vss
SDA
BCK
SCL
WS
DATA
C10
16
15
14
13
12
11
10
9
47u
SDA
SCL
R9
24k
C11
361
C12
30
MS6335
R1
C224k
1u
R5
24k
R6
1k
J2
Text
C6
361
C9
U1
47u
C5
30
100u
C8
1
BCK
2
WS
3
DATA
4
L1
R7
1k
R8
1k
Audio format
REV 5
20/20
www.mosanalog.com