MOSA
MS6337
16-Bit Stereo Audio DAC & Mono 1.8W Power Amplifier
Plus Stereo Headphone Function
16-Bit Stereo Audio DAC & Mono 1.8W Power
Amplifier Plus Stereo Headphone Function
FEATURES
‧Operation
range: 2.7V~6.5V
‧16-bit
resolution audio DAC
‧Output
mode : Speaker( BTL)/Headphone(SE)
‧Output
power, THD+N=1%
Mode R
L
5V
3.3V
2.7V
4Ω
1.8W
0.72W
450mW
BTL
8Ω
1.2W
0.52W
330mW
8Ω
0.3W
125mW 85mW
SE
32Ω 90mW
43mW
25mW
‧Component
less
‧No
zero crossing distortion
‧Fast
setting time permits 2*, 4*, and 8* oversampling
(serial input) or double speed operation at 4*
oversampling
‧Audio
format：I
2
S, Right justified。
‧The
minimum HIGH voltage of digital clocks(WS,DATA
and BCK)and the control inputs can be 1.6V at Vdd = 5V.
‧Excellent
Power Supply Rejection Ratio(PSRR)
‧Low
power consumption
‧Shutdown
function
‧Output
voltages can be adjusted by the external resisters
‧
Housed in 24 pin SSOP(150mil), QFN(4x4x0.8)packages
APPLICATIONS
‧Multimedia
system, Portable Digital Audio.
DESCRIPTION
The MS6337 is a 16-bits voltage-output Digital-to-Analog Converter (DAC) integrated class AB stereo headphone
driver and mono speaker power amplifier. It can drive 1.8W of continuous average power into a mono 4Ω bridged-tied
(BTL) speaker or 2 * 90mW into stereo 32Ω single ended (SE) headphone. The 16-bit DAC supports popular formats
as I2S, Right Justified.
The MS6337 is with the excellent Power Supply Rejection Ratio(PSRR) 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 MS6337 ideally suited for use in digital
audio equipment.
BLOCK DIAGRAM
Shutdown control
SD Mode
0
0
1
1
SD
0
1
0
1
Status
Shutdown
Active
Active
Shutdown
DV
DD
DVss
LIN
MS6337
Supply
BCK
WS
DATA
FORMAT(I2S/RJF)
DAC_SD
DAC
Shutdown
-
B1
+
HPIN
Mono / Stereo Mode
Switching Circuitry
400K
V
DD
-
A1
+
400K
LOUT/BTL-
400K
DAC
Format control
FORMAT
0
1
Status
I2S
RJF
-
A2
+
BTL+
V
DD
400K
ROUT
DAC control
DACSD
0
1
Status
Shutdown
Active
CAP control
CAP_DC
0
Discharge
1
Charge
Status
SD
SD_MODE
CAP
390K
Click/Pop
Reduction
Bias
Power Amplifier
Supply
Supply
CAP_DC
RIN
PV
DDL
PV
DDR
PV
SSL
PV
SSR
AV
DD
AV
SS
REV 2
1/20
www.mosanalog.com
MOSA [ MOSA ELECTRONICS ]
