MS6337_1 Datasheet, PDF (1/20 Pages) MOSA ELECTRONICS – 16-Bit Stereo Audio DAC & Mono 1.8W Power Amplifier Plus Stereo Headphone Function

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
BTL
4Ω
8Ω
5V
1.8W
1.2W
3.3V
0.72W
0.52W
2.7V
450mW
330mW
SE
8Ω 0.3W
32Ω 90mW
125mW 85mW
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：I²S, 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 SD Status
0
0 Shutdown
0
1 Active
1
0 Active
1
1 Shutdown
Format control
FORMAT Status
0
I2S
1
RJF
DAC control
DACSD Status
0 Shutdown
1
Active
CAP control
CAP_DC Status
0 Discharge
1
Charge
DVDD DVss
Supply
BCK
WS
DATA
FORMAT(I2S/RJF)
DAC_SD
DAC
DAC
Shutdown
LIN
MS6337
HPIN
SD
SD_MODE
CAP
Mono / Stereo Mode
Switching Circuitry
390K
Click/Pop
Reduction
Bias
-
+
A1
-
+
B1
-
+
A2
VDD
400K
400K
LOUT/BTL-
VDD
400K
400K
BTL+
ROUT
Power Amplifier
Supply
Supply
CAP_DC
RIN PVDDL PVDDR PVSSL PVSSR AVDD AVSS
REV 2
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